AWS A5.29-98/SFA-5.29 Specification for Low-Alloy Steel Electrodes for Flux Cored Arc Welding (Eng)

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ASME B&PVC sec2c$u135 05-25-99 11:30:12 pd: sec2c Rev 14.04

SPECIFICATION FOR LOW-ALLOY STEEL

ELECTRODES FOR FLUX CORED ARC WELDING

SFA-5.29

(Identical with AWS Speciﬁcation A5.29-98.)

1. Scope

This speciﬁcation prescribes requirements for the

classiﬁcation of low-alloy steel electrodes for ﬂux cored

arc welding (FCAW). Metal cored low-alloy steel elec-

trodes are classiﬁed according to ANSI/AWS A5.28-

96, Speciﬁcation for Low-Alloy Steel Filler Metals for

Gas Shielded Arc Welding.

Iron is the only element

whose content exceeds 10.5 percent in weld metal

produced using electrodes classiﬁed by this document.

PART A — GENERAL REQUIREMENTS

2. Normative References

2.1 ASTM Standards.

The following ASTM stan-

dards are referenced in the mandatory sections of this

document:

(a) A 36/A 36M, Speciﬁcation for Carbon Struc-

tural Steel

(b) A 203/A 203M, Speciﬁcation for Pressure Vessel

Plates, Alloy Steel, Nickel

Plates, Alloy Steel, Molybdenum

(d) A 285/A 285M, Speciﬁcation for Pressure Vessel

Plates, Carbon Steel, Low- and Intermediate-Tensile

Strength

(e) A 302/A 302M, Speciﬁcation for Pressure Vessel

Plates, Alloy Steel, Manganese-Molybdenum and Man-

ganese-Molybdenum-Nickel

AWS standards can be obtained from the American Welding Society,

550 N.W. LeJeune Road, Miami, FL 33126.

ASTM standards can be obtained from the American Society for

Testing and Materials, 100 Barr Harbor Drive, West Conshohocken,

PA 19428.

597

(f) A 387/A 387M, Speciﬁcation for Pressure Vessel

Plates, Alloy Steel, Chromium Molybdenum

(g) A 514/A 514M, Speciﬁcation for High-Yield

Strength, Quenched and Tempered Alloy Steel Plate,

Suitable for Welding

(h) A 537/A 537M, Speciﬁcation for Pressure Vessel

Plates, Heat Treated, Carbon-Manganese-Silicon Steel

(i) A 588/A 588M, Speciﬁcation for High-Strength

Low-Alloy Structural Steel with 50 ksi [345 MPa]

Minimum Yield Point to 4 in. [100 mm] Thick

(j) E 29, Practice for Using Signiﬁcant Digits in

Test Data to Determine Conformance with Speciﬁcations

(k) E 142, Standard Test Methods for Controlling

Quality of Radiographic Testing

(l) E 350, Standard Test Methods for Chemical

Analysis of Carbon Steel, Low-Alloy Steel, Silicon Elec-

trical Steel, Ingot Iron, and Wrought Iron

2.2 AWS Standards. The following ANSI/AWS

standards are referenced in the mandatory sections of

this document:

(a) ANSI/AWS A5.01, Filler Metal Procurement

Guidelines

(b) ANSI/AWS A4.3, Standard Methods for Determi-

nation of the Diffusible Hydrogen Content of Marten-

sitic, Bainitic, and Ferritic Steel Weld Metal Produced

by Arc Welding

ical Testing of Welds

(d) ANSI/ASC Z49.1, Safety in Welding, Cutting,

and Allied Processes

2.3 MIL Standards.

The following MIL standard

is referenced in the mandatory sections of this document:

MIL standards are available from contracting activity or as directed

by contracting activity.

A99

ASME B&PVC sec2c$u135 05-25-99 11:30:12 pd: sec2c Rev 14.04

SFA-5.29 1998 SECTION II

TABLE 1

TENSION TEST REQUIREMENTS

Yield Strength @ 0.2% % Elongation in

Tensile Strength Range Offset, Min. 2 in. (51 mm)

AWS

Classification

ksi MPa ksi MPa Min.

E6XTX-X, -XM 60–80 410–550 50 340 22

E7XTX-X, -XM 70–90 480–620 58 400 20

E8XTX-X, -XM 80–100 550–690 68 470 19

E9XTX-X, -XM 90–110 620–760 78 540 17

E10XTX-X, -XM 100–120 690–830 88 610 16

E10XTX-K9, -K9M (c) (c) 82–97 560–670 18

E11XTX-X, -XM 110–130 760–900 98 680 15

E12XTX-X, -XM 120–140 830–970 108 745 14

EXXTX-G

(b)

EXXTG-X

(b)

Properties as agreed upon between supplier and purchaser

EXXTG-G

(b)

NOTES:

(a) The “X’s” in actual classification designations will be replaced with appropriate designators for usability characteristics specified in Table

3 and for chemical composition as specified in Table 4.

(b) Placement of a “G” in this designation indicates those properties that have been agreed upon between the supplier and purchaser. Other

properties are dictated by the digit(s) or suffix replacing the X. Variations used in this specification include the following:

(1) EXXTX-G — Alloy requirements are as agreed upon. The mechanical properties and slag system are as indicated by the digits used.

(2) EXXTG-X — The slag system and shielding gas are as agreed upon. Mechanical properties and alloy requirements conform to those

indicated by the digits.

(3) EXXTG-G — The slag system, shielding gas, and alloy requirements are as agreed upon. Mechanical properties conform to those

indicated by the digits.

(a) MIL-S-16216, Speciﬁcation for Steel Plate, Alloy,

Structural, High Yield Strength (HY-80 and HY-100)

3. Classiﬁcation

3.1 The electrodes covered by this speciﬁcation are

classiﬁed according to the following:

(a) the mechanical properties of the weld metal, as

speciﬁed in Tables 1 and 2;

(b) certain usability characteristics of the electrode,

as speciﬁed in Table 3;

are suitable, as speciﬁed in Table 3; and

(d) chemical composition of the weld metal, as speci-

ﬁed in Table 4.

3.2 Electrodes classiﬁed under one classiﬁcation shall

not be classiﬁed under any other classiﬁcation in this

speciﬁcation. However, gas shielded electrodes may be

classiﬁed with 100 percent CO

shielding gas, 75 to

80 percent argon/balance CO

shielding gas or both.

The ‘‘M’’ designator means that the electrode has been

classiﬁed with a 75 to 80 percent argon/balance CO

shielding gas mixture.

598

3.3 The electrodes classiﬁed under this speciﬁcation

are intended for FCAW either with or without an

external shielding gas.

Electrodes intended for use without external shielding

gas, or with the shielding gases speciﬁed in Table 3,

are not prohibited from use with any other process or

shielding gas for which they are found suitable.

4. Acceptance

Acceptance of the welding electrodes shall be in

accordance with the provisions of ANSI/AWS A5.01,

Filler Metal Procurement Guidelines.

5. Certiﬁcation

By afﬁxing the AWS Speciﬁcation and Classiﬁcation

designations to the packaging, or the classiﬁcation

designations to the product, the manufacturer certiﬁes

ASME B&PVC sec2c$u135 05-25-99 11:30:12 pd: sec2c Rev 14.04

PART C — SPECIFICATIONS FOR WELDING RODS,

ELECTRODES, AND FILLER METALS SFA-5.29

TABLE 2

IMPACT REQUIREMENTS

Classification Condition

Min. Impact Strength

E8XT1-A1, -A1M PWHT Not Required

E7XT5-A1, -A1M PWHT 20 ft · lbf @ −20°F (27 J @ −29°C)

E8XT1-B1, -B1M PWHT Not Required

E8XT1-B1L, -B1LM PWHT Not Required

E8XT1-B2, -B2M PWHT Not Required

E8XT5-B2, -B2M PWHT Not Required

E8XT1-B2H, B2HM PWHT Not Required

E8XT1-B2L, -B2LM PWHT Not Required

E8XT5-B2L, -B2LM PWHT Not Required

E8XT5-B6

(c)

, -B6M PWHT Not Required

E8XT5-B6L

(c)

, -B6LM PWHT Not Required

E8XT5-B8

(c)

, -B8M PWHT Not Required

E8XT5-B8L

(c)

, -B8LM PWHT Not Required

E9XT1-B3, -B3M PWHT Not Required

E9XT5-B3, -B3M PWHT Not Required

E10XT1-B3, -B3M PWHT Not Required

E9XT1-B3L, -B3LM PWHT Not Required

E9XT1-B3H, -B3HM PWHT Not Required

E6XT1-Ni1, -Ni1M AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E7XT6-Ni1 AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E7XT8-Ni1 AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E8XT1-Ni1, -Ni1M AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E8XT5-Ni1, -Ni1M PWHT 20 ft · lbf @ −60°F (27 J @ −51°C)

E7XT8-Ni2 AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E8XT8-Ni2 AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E8XT1-Ni2, -Ni2M AW 20 ft · lbf @ −40°F (27 J @ −40°C)

E8XT5-Ni2

(d)

, -Ni2M

(d)

PWHT 20 ft · lbf @ −75°F (27 J @ −60°C)

E9XT1-Ni2, -Ni2M AW 20 ft · lbf @ −40°F (27 J @ −40°C)

E8XT5-Ni3

(d)

, -Ni3M

(d)

PWHT 20 ft · lbf @ −100°F (27 J @ −73°C)

E8XT11-Ni3 AW 20 ft · lbf @ 0°F (27 J @ −18°C)

E9XT5-Ni3

(d)

, -Ni3M

(d)

PWHT 20 ft · lbf @ −100°F (27 J @ −73°C)

E9XT1-D1, -D1M AW 20 ft · lbf @ −40°F (27 J @ −40°C)

E9XT5-D2, -D2M PWHT 20 ft · lbf @ −60°F (27 J @ −51°C)

E10XT5-D2, -D2M PWHT 20 ft · lbf @ −40°F (27 J @ −40°C)

E9XT1-D3, -D3M AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E8XT5-K1, -K1M AW 20 ft · lbf @ −40°F (27 J @ −40°C)

E7XT7-K2 AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E7XT4-K2 AW 20 ft · lbf @ 0°F (27 J @ −18°C)

E7XT8-K2 AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E8XT1-K2, -K2M AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E9XT1-K2, -K2M AW 20 ft · lbf @ 0°F (27 J @ −18°C)

E8XT5-K2, -K2M AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E7XT11-K2 AW 20 ft · lbf @ +32°F (27 J @ 0°C)

E9XT5-K2, -K2M AW 20 ft · lbf @ −60°F (27 J @ −51°C)

E10XT1-K3, -K3M AW 20 ft · lbf @ 0°F (27 J @ −18°C)

E11XT1-K3, -K3M AW 20 ft · lbf @ 0°F (27 J @ −18°C)

E10XT5-K3, -K3M AW 20 ft · lbf @ −60°F (27 J @ −51°C)

E11XT5-K3, -K3M AW 20 ft · lbf @ −60°F (27 J @ −51°C)

E11XT1-K4, -K4M AW 20 ft · lbf @ 0°F (27 J @ −18°C)

E11XT5-K4, -K4M AW 20 ft · lbf @ −60°F (27 J @ −51°C)

E12XT5-K4, -K4M AW 20 ft · lbf @ −60°F (27 J @ −51°C)

E12XT1-K5, -K5M AW Not Required

E7XT5-K6, -K6M AW 20 ft · lbf @ −75°F (27 J @ −60°C)

E6XT8-K6 AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E7XT8-K6 AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E10XT1-K7, -K7M AW 20 ft · lbf @ −60°F (27 J @ −51°C)

E9XT8-K8 AW 20 ft · lbf @ −20°F (27 J @ −29°C)

E10XT1-K9, -K9M AW 20 ft · lbf @ −60°F (47 J @ −51°C)

E8XT1-W2, -W2M AW 20 ft · lbf @ −20°F (27 J @ −29°C)

599

ASME B&PVC sec2c$u135 05 25 99 11:30:12 pd: sec2c Rev 14 04

SFA-5.29 1998 SECTION II

TABLE 2 (CON’T)

IMPACT REQUIREMENTS

Classification Condition

Min. Impact Strength

EXXXTX-G

EXXXTG-G Not Specified

Not Specified

EXXXTG-X

NOTES:

a. AW p As welded.

PWHT p Postweld heat treated in accordance with Table 8.

b. Electrodes with the optional supplemental impact designator “J” shall meet the 20 ft · lbf (27 J) requirement at a test temperature of 20°F

(11°C) lower than the temperature shown above. For example, an E81T1-Ni1MJ would meet the 20 ft · lbf (27 J) requirement at −40°F

(−40°C).

c. These electrodes are presently also Classified E502TX-X or E505TX-X in AWS A5.22-95. With the next revision of A5.22, they will be

removed and exclusively listed in this specification.

d. PWHT temperatures in excess 1150°F (620°C) will decrease the impact value.

e. See Table 1, Note b.

that the product meets the requirements of this speciﬁ-

cation.

6. Units of Measure and Rounding-Off

Procedure

6.1 U.S. Customary Units are the standard units of

measure in this speciﬁcation. The SI Units are given

as equivalent values to the U.S. Customary Units. The

standard sizes and dimensions in the two systems are

not identical and, for this reason, conversion from a

standard size or dimension in one system will not

always coincide with a standard size or dimension in

the other. Suitable conversions, encompassing standard

sizes of both, can be made, however, if appropriate

tolerances are applied in each case.

6.2 For the purpose of determining conformance with

this speciﬁcation, an observed or calculated value shall

be rounded to the ‘‘nearest unit’’ in the last right-hand

place of ﬁgures used in expressing the limiting value

for quantities in the appropriate tables in accordance

with the rounding-off method given in ASTM E 29,

Standard Practice for Using Signiﬁcant Digits in Test

Data to Determine Conformance with Speciﬁcations.

PART B — TESTS, PROCEDURES, AND

REQUIREMENTS

7. Summary of Tests

The tests required for each classiﬁcation are speciﬁed

in Table 5. The purpose of these tests is to determine

See Section A4, Certiﬁcation (in the Annex), for further information

concerning certiﬁcation and the testing called for to meet this

requirement.

600

the mechanical properties, soundness, the chemical com-

position of the weld metal, and usability of the electrode.

The base metal for the weld test assemblies, the welding

and testing procedures to be employed, and the results

required are given in Sections 9 through 14.

The optional supplemental test for diffusible hydrogen

in Section 15 is not required for classiﬁcation, but is

included for an optional electrode designation as agreed

to between the purchaser and supplier. Another optional

supplemental designator (J) may be used to indicate

Charpy impact testing at lower than standard temper-

ature.

8. Retest

If any test fails to meet the requirement, that test

shall be repeated twice. The results of both retests

shall meet the requirement. Specimens for the retest

may be taken from the original test assembly or from

a new test assembly. For chemical analysis, retest need

be only for those speciﬁc elements that failed to meet

their test requirement. If the results of one or both

retests fail to meet the requirement, the material under

test shall be considered as not meeting the requirements

of this speciﬁcation for that classiﬁcation.

In the event that, during preparation or after comple-

tion of any test, it is clearly determined that prescribed

or proper procedures were not followed in preparing

the weld test assembly or test specimen(s), or in conduct-

ing the tests, the test shall be considered invalid, without

regard to whether the test was actually completed, or

whether test results met, or failed to meet, the require-

ment. That test shall be repeated, following proper

prescribed procedures. In this case, the requirement for

doubling the number of test specimens does not apply.

ASME B&PVC SEC2C$U135 04-09-00 19:52:28 pd: sec2c Rev 15.03

PART C — SPECIFICATIONS FOR WELDING RODS,

ELECTRODES, AND FILLER METALS SFA-5.29

TABLE 3

POSITION OF WELDING, SHIELDING, POLARITY, AND APPLICATION REQUIREMENTS

AWS Position

b, c

of External

Classification

Welding Shielding

Polarity

Application

EX0T1-X H, F CO

DCEP M

EX0T1-XM H, F 75–80%Ar/bal CO

DCEP M

EX1T1-X H, F, VU, OH CO

DCEP M

EX1T1-XM H, F, VU, OH 75–80%Ar/bal CO

DCEP M

EX0T4-X H, F None DCEP M

EX0T5-X H, F CO

DCEP M

EX0T5-XM H, F 75–80%Ar/bal CO

DCEP M

EX1T5-X H, F, VU, OH CO

DCEP or DCEN

EX1T5-XM H, F, VU, OH 75–80%Ar/bal CO

DCEP or DCEN

EX0T6-X H, F None DCEP M

EX0T7-X H, F None DCEN M

EX1T7-X H, F, VU, OH None DCEN M

EX0T8-X H, F None DCEN M

EX1T8-X H, F, VU, or VD, OH

None DCEN M

EXXT1-K9 VU, H, F, OH CO

DCEP M

EXXT1-K9M VU, H, F, OH 75–80%Ar/bal CO

DCEP M

EX0T11-X H, F None DCEN M

EX1T11-X H, F, VD, OH None DCEN M

EX0TG-X H, F — Not Specified

—

EX1TG-X H, F, VU or VD, OH — Not Specified

—

NOTES:

a. The “X” indicates the tensile strength and chemical composition.

b. H p Horizontal position

F p Flat position

OH p Overhead position

VU p Vertical position with upward progression

VD p Vertical position with downward progression

c. Electrode sizes suitable for welding in all positions usually are those sizes that are smaller than the

⁄

in. (2.4 mm) or nearest size called

for in 9.4.1 for the groove weld. For that reason, electrodes meeting the requirements for the groove weld tests and fillet weld tests may be

classified as EX1TX-X or EX1TX-XM (where X represents the tensile strength and usability designator) regardless of their size. See Section

A7 and Figure A1 in the Annex for more information.

d. Properties of weld metal from electrodes that are used with external gas shielding (EXXT1-X, EXXT1-XM, EXXT5-X, and EXXT5-XM)

vary according to the shielding gas employed. Electrodes classified with the specified shielding gas should not be used with other shielding

gases without first consulting the manufacturer of the electrode.

e. The term DCEP refers to direct current electrode positive (dc, reverse polarity). The term DCEN refers to direct current electrode negative

(dc, straight polarity).

f. M p single and multipass.

g. Some EX1T5-X and EX1T5-XM electrodes may be recommended for use on DCEN for improved out-of-position welding. Consult the

manufacturer for the recommended polarity.

h. See Table 1, footnote (b).

i. Per manufacturer’s recommendations.

9. Weld Test Assemblies

9.1 Two or three weld test assemblies are required,

depending on the classiﬁcation of the electrode and

the manner in which the tests are conducted. They are

as follows:

(a) the weld pad shown in Fig. 1 for chemical

analysis of the undiluted weld metal,

(b) the groove weld shown in Fig. 2 for mechanical

properties and soundness of the weld metal, and

the electrode.

The sample for chemical analysis may be taken from

the reduced section of the fractured tension test specimen

601

[This is electronic file SEC2C$$135 page #601

or from a corresponding location (or any location above

it) in the weld metal in the groove weld in Fig. 2,

thereby avoiding the need to make the weld pad. In

case of dispute, the weld pad shall be the referee

method.

9.2 Preparation of each weld test assembly shall be

as prescribed in 9.3, 9.4, and 9.5. The base metal for

each assembly shall be as required in Table 6 and

shall meet the requirements of any of the ASTM

speciﬁcations shown there, or an equivalent speciﬁca-

tion. Testing of the assemblies shall be as prescribed

in Sections 10 through 14.

ASME B&PVC SEC2C$U135 04-09-00 19:52:28 pd: sec2c Rev 15.03

SFA-5.29 1998 SECTION II

A00

TABLE 4

CHEMICAL COMPOSITION REQUIREMENTS FOR UNDILUTED WELD METAL

Weight-Percent

UNS

AWS Classification Number

CMnPSSiNiCrMoVAl

Carbon-Molybdenum Steel Electrodes

E7XT5-A1, -A1M W17035

0.12 1.25 0.03 0.03 0.80 — — 0.40–0.65 — — —

E8XT1-A1, -A1M W17031

Chromium-Molybdenum Electrodes

E8XT1-B1, -B1M W51031 0.05–0.12 1.25 0.03 0.03 0.80 — 0.40–0.65 0.40–0.65 — — —

E8XT1-B1L, -B1LM W51131 0.05 1.25 0.03 0.03 0.80 — 0.40–0.65 0.40–0.65 — — —

E8XT1-B2, -B2M W52031

0.05–0.12 1.25 0.03 0.03 0.80 — 1.00–1.50 0.40–0.65 — — —

E8XT5-B2, -B2M W52035

E8XT1-B2L, -B2LM W52131

0.05 1.25 0.03 0.03 0.80 — 1.00–1.50 0.40–0.65 — — —

E8XT5-B2L, -B2LM W52135

E8XT1-B2H, -B2HM W52231 0.10–0.15 1.25 0.03 0.03 0.08 — 1.00–1.50 0.40–0.65 — — —

E9XT1-B3, -B3M W53031

E9XT5-B3, -B3M W53035 0.05–0.12 1.25 0.03 0.03 0.80 — 2.00–2.50 0.90–1.20 — — —

E10XT1-B3, -B3M W53031

E9XT1-B3L, -B3LM W53131 0.05 1.25 0.03 0.03 0.80 — 2.00–2.50 0.90–1.20 — — —

E9XT1-B3H, -B3HM W53231 0.10–0.15 1.25 0.03 0.03 0.80 — 2.00–2.50 0.90–1.20 — — —

E8XT5-B6

, -B6M W50231 0.05–0.12 1.25 0.04 0.03 1.0 0.40 4.0–6.0 0.45–0.65 — — 0.50

E8XT5-B6L, -B6LM W50230 0.05 1.25 0.04 0.03 1.0 0.40 4.0–6.0 0.45–0.65 — — 0.50

E8XT5-B8

, -B8M W50431 0.05–0.12 1.25 0.04 0.03 1.0 0.40 8.0–10.5 0.85–1.20 — — 0.50

E8XT5-B8L, -B8LM W50430 0.05 1.25 0.03 0.03 1.0 0.40 8.0–10.5 0.85–1.20 — — 0.50

Nickel-Steel Electrodes

E7XT8-Ni1 W21038

0.12 1.50 0.03 0.03 0.80 0.80–1.10 0.15 0.35 0.05 1.8 —

E7XT6-Ni1 W21036

E6XT1-Ni1, -Ni1M W21031

E8XT1-Ni1, -Ni1M W21031 0.12 1.50 0.03 0.03 0.80 0.80–1.10 0.15 0.35 0.05 — —

E8XT5-Ni1, -Ni1M W21035

602

[This is electronic SEC2C$U135 page #602

ASME B&PVC sec2c$u135 05-25-99 11:30:12 pd: sec2c Rev 14.04

PART C — SPECIFICATIONS FOR WELDING RODS,

ELECTRODES, AND FILLER METALS SFA-5.29

TABLE 4 (CONT’D)

CHEMICAL COMPOSITION REQUIREMENTS FOR UNDILUTED WELD METAL

Weight-Percent

UNS

AWS Classification Number

CMnPSSiNiCrMoVAl

Nickel-Steel Electrodes (Cont’d)

EX8T1-Ni2, -Ni2M W22031

E8XT5-Ni2, -Ni2M W22035 0.12 1.50 0.03 0.03 0.80 1.75–2.75 — — — — —

E9XT1-Ni2, Ni2M W22031

E7XT8-Ni2 W22038

0.12 1.50 0.03 0.03 0.80 1.75–2.75 — — — 1.8 —

E8XT8-Ni2 W22038

E8XT5-Ni3, -Ni3M W23035 0.12 1.50 0.03 0.03 0.80 2.75–3.75 — — — — —

E9XT5-Ni3, -Ni3M W23035 0.12 1.50 0.03 0.03 0.80 2.75–3.75 — — — — —

E8XT11-Ni3 W23039 0.12 1.50 0.03 0.03 0.80 2.75–3.75 — — — 1.8 —

Manganese-Molybdenum Steel Electrodes

E9XT1-D1, -D1M W19131 0.12 1.25–2.00 0.03 0.03 0.80 — — 0.25–0.55 — — —

E9XT5-D2, -D2M W19235

0.15 1.65-2.25 0.03 0.03 0.80 — — 0.25–0.55 — — —

E10XT5-D2, -D2M W19235

E9XT1-D3, -D3M W19331 0.12 1.00–1.75 0.03 0.03 0.80 — — 0.40–0.65 — — —

All Other Low-Alloy Steel Electrodes

E8XT5-K1, -K1M W21135 0.15 0.80–1.40 0.03 0.03 0.80 0.80–1.10 0.15 0.20–0.65 0.05 — —

E7XT4-K2 W21234

E7XT7-K2, W21237

0.15 0.50–1.75 0.03 0.03 0.80 1.00–2.00 0.15 0.35 0.05 1.8 —

E7XT8-K2 W21238

E7XT11-K2 W21239

E8XT1-K2, -K2M W21231

E9XT1-K2, -K2M W21231

0.15 0.50–1.75 0.03 0.03 0.80 1.00–2.00 0.15 0.35 0.05 — —

E8XT5-K2, -K2M W21235

E9XT5-K2, -K2M W21235

E10XT1-K3, -K3M W21331

E11TX1-K3, -K3M W21331

0.15 0.75–2.25 0.03 0.03 0.80 1.25–2.60 0.15 0.25–0.65 0.05 — —

E10XT5-K3, -K3M W21335

E11XT5-K3, -K3M W21335

603

ASME B&PVC sec2c$u135 05-25-99 11:30:12 pd: sec2c Rev 14.04

SFA-5.29 1998 SECTION II

TABLE 4 (CONT’D)

CHEMICAL COMPOSITION REQUIREMENTS FOR UNDILUTED WELD METAL

Weight-Percent

UNS

AWS Classification Number

CMnPSSiNiCrMoVAl

All Other Low-Alloy Steel Electrodes (Cont’d)

E11XT1-K4, -K4M W22231 ——

E11XT5-K4, -K4M W22235 0.15 1.20–2.25 0.03 0.03 0.80 1.75–2.60 0.20–0.60 0.20–0.65 0.03

E12XT5-K4, -K4M W22235

E12XT1-K5, K5M W21631 0.10–0.25 0.60–1.60 0.03 0.03 0.80 0.75–2.00 0.20–0.70 0.15–0.55 0.05 — —

E6XT8-K6 W21048 —

0.15 0.50–1.50 0.03 0.03 0.80 0.40–1.00 0.20 0.15 0.05 1.8

E7XT8-K6 W21048

E7XT5-K6, -K6M W21045 0.15 0.50–1.50 0.03 0.03 0.80 0.40–1.00 0.20 0.15 0.05 — —

E10XT1-K7, -K7M W22051 0.15 1.00–1.75 0.03 0.03 0.80 2.00–2.75 — — — — —

E9XT8-K8 W21438 0.15 1.00–2.00 0.03 0.03 0.40 0.50–1.50 0.20 0.20 0.05 1.8 —

E10XT1-K9, -K9M W23230 0.07 0.50–1.50 0.015 0.015 0.60 1.30–3.75 0.20 0.50 0.05 — 0.06

E8XT1-W2, -W2M W20131 0.12 0.50–1.30 0.03 0.03 0.35–0.80 0.40–0.80 0.45–0.70 — — — 0.30–0.75

EXXTX-G — — 1.75

0.03 0.03 0.80

0.50

0.30

0.20

0.10

1.8

—

NOTES:

a. Single values are maximum unless otherwise noted.

b. SAE/ASTM Unified Numbering System for Metals and Alloys.

c. For self-shielded electrodes only.

d. Classification also appears in AWS A5.22-95,

Specification for Stainless Steel Electrodes for Flux Cored Arc Welding and Stainless Steel Flux Cored Rods for Gas Tungsten Arc Welding.

These classifications will be deleted from the first revision of A5.22 following publication of this specification.

e. In order to meet the alloy requirements of the G group, the undiluted weld metal shall have the minimum of at least one of the elements listed in this table. Shielding gas, slag system,

and mechanical properties are dictated by the digit(s) replacing X(s).

604

ASME B&PVC sec2c$u135 05 25 99 11:30:12 pd: sec2c Rev 14 04

PART C — SPECIFICATIONS FOR WELDING RODS,

ELECTRODES, AND FILLER METALS SFA-5.29

TABLE 5

REQUIRED TESTS

AWS Chemical Radiographic Tension Test Impact Fillet Diffusible

Classiﬁcation

a, b

Analysis Test (Flat Position) Test Weld Test Hydrogen

EX0TX-X Required Required Required c Required Optional

EX1TX-X Required Required Required c Required Optional

E10XTX-K9, -K9M Required Required

Required

c, f Required Required

EXXTG-X

EXXTX-G Required Required Required

c Required Optional

EXXTG-G

NOTES:

a. The 0 and 1 before “T” refer to the position of welding for which the electrode is suitable. See A2.2.

0 p Horizontal and ﬂat position.

1 p All positions (smaller than

⁄

in. [2.4 mm] diameter); i.e., ﬂat, horizontal, overhead, and vertical. See Table 3.

b. Electrodes with supplemental toughness requirements, diffusible hydrogen requirements, or both, may be further identiﬁed as shown in Tables

2 and 10 and Figure A1.

c. The Charpy V-notch impact test is required when the classiﬁcation in accordance with Table 2 indicates impact requirements.

d. Minimum all-weld-metal tensile strength shall match that indicated by the designator being employed.

e. As agreed upon between supplier and purchaser.

f. Vertical position with upward progression.

9.3 Weld Pad. A weld pad shall be prepared as

shown in Fig. 1 except when, as permitted in 9.1, the

sample for analysis is taken from the groove weld or

the fractured tension test specimen. Base metal of

any convenient size which will satisfy the minimum

requirements of Fig. 1 and is of a type speciﬁed in

Table 6, shall be used as the base for the weld pad.

The surface of the base metal on which the ﬁller metal

is deposited shall be clean. The pad shall be welded

in the ﬂat position with multiple layers to obtain

undiluted weld metal (

⁄

in. [13 mm] minimum

thickness).

The electrode size shall be

⁄

in. (2.4 mm) or the

size the manufacturer produces closest to

⁄

in. (2.4

mm). The preheat temperature shall not be less than

60°F (16°C), and the interpass temperature shall not

exceed 325°F (163°C). The slag shall be removed after

each pass. The pad may be quenched in water between

passes (temperature unimportant). The dimensions of

the completed pad shall be as shown in Fig. 1. Testing

of this assembly shall be as speciﬁed in Section 10.

9.4 Groove Weld

9.4.1 A test assembly using base metal as speciﬁed

in Table 6 shall be prepared and welded as shown in

Fig. 2. When ASTM A 36 or A 285 base metals are

used, the groove faces and the contact face of the

backing shall be buttered using an electrode of the

same composition as the classiﬁcation being tested

except as noted in Table 6, Note a. If a buttering

procedure is used, the layer shall be approximately

⁄

in. (3.2 mm) thick (see Fig. 2, Note 2).

605

The electrode size shall be

⁄

in. (2.4 mm) diameter,

or the size the manufacturer produces that is closest

⁄

in. (2.4 mm) diameter, and the welding conditions

shall be those listed in Tables 3 and 7 for the classiﬁca-

tion being tested. Welding shall be in the ﬂat position

and the assembly shall be restrained (or preset) during

welding to prevent warpage in excess of 5 degrees.

An assembly that is warped more than 5 degrees from

plane shall be discarded. It shall not be straightened.

The test assembly shall be tack welded and shall be

heated to the preheat temperature prescribed in Table

8 for the electrode classiﬁcation being tested before

welding begins. Welding shall continue until the assem-

bly has reached the prescribed interpass temperature

range in Table 8, measured by temperature indicating

crayons or surface thermometers at the location shown

in Fig. 2. This interpass temperature shall be maintained

for the remainder of the weld. Should it be necessary

to interrupt welding, the assembly shall be allowed to

cool in still air at room temperature.

The assembly shall be heated to a temperature within

the prescribed preheat and interpass temperature range

in Table 8 before welding is resumed. Test assemblies

made with electrodes shown in the PWHT condition

in Table 2 shall be postweld heat treated as speciﬁed

in Table 8. When welding has been completed and the

assembly has cooled, the assembly shall be prepared

and tested as speciﬁed in Sections 11 through 13.

9.5 Fillet Weld. A test assembly shall be prepared

and welded as required in Table 5 and speciﬁed in

Fig. 3, using base metal of the appropriate type speciﬁed

ASME B&PVC sec2c$u135 05-25-99 11:30:12 pd: sec2c Rev 14.04

SFA-5.29 1998 SECTION II

GENERAL NOTES:

1. Base metal of any convenient size, of the type speciﬁed in Table 6, shall be used as the base for the weld pad.

2. The surface of the base metal on which the ﬁller metal is to be deposited shall be clean.

3. The pad shall be welded in the ﬂat position with successive layers to obtain undiluted weld metal, using shielding gas and current/polarity as

speciﬁed in Table 3.

4. The number and size of the beads will vary according to the size of the electrode and the width of the weave, as well as with the amperage

employed. The weave should be limited to 6 times the electrode diameter.

5. The preheat temperature shall not be less than 60°F (16°C) and the interpass temperature shall not exceed 325°F (163°C).

6. The test assembly may not be quenched in water (temperature unimportant) between passes to control interpass temperature.

7. The minimum completed pad size shall be that shown above. The sample to be tested in Section 10 shall be taken from weld metal that is

at least

⁄

in. (9.5 mm) above the original base metal surface.

FIG. 1 PAD FOR CHEMICAL ANALYSIS OF UNDILUTED WELD METAL

in Table 6 for each EX0TX-X classiﬁcation that requires

a test assembly welded in the horizontal position. Each

EX1TX-X classiﬁcation requires two test assemblies,

one welded in the vertical position and one welded in

the overhead position. The progression for vertical

welding may be either upward or downward, depending

on the classiﬁcation (see Table 3).

Before assembly, the standing member (web) shall

have one edge prepared throughout its length, and the

base member (ﬂange) side shall be straight, smooth,

and clean. The test plates shall be assembled as shown

in Fig. 3. When assembled, the faying surfaces shall

be in intimate contact along the entire length of the

606

joint. The test assembly shall be secured with tack

welds deposited at each end of the weld joint.

The welding procedure and the size of the electrode

to be tested shall be as selected by the manufacturer.

The ﬁllet weld shall be a single-pass weld deposited

in either the semi-automatic or mechanized mode as

selected by the manufacturer. The ﬁllet weld size shall

not be greater than

⁄

in. (9.5 mm). The ﬁllet weld

shall be deposited only on one side of the joint as

shown in Fig. 3. Weld cleaning shall be limited to

chipping, brushing, and needle scaling. Grinding, ﬁling,

or other metal cutting of the ﬁllet weld face is prohibited.

The testing of the assembly shall be as speciﬁed in

Section 14, Fillet Weld Test.