ASME Section VIII div 2 2010. ASME Boiler and Pressure Vessel Code. Alternative Rules
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2010 SECTION VIII, DIVISION 2
3-49
3.19 Figures
Heat Treatment Temperature
0.2 x Min.
Hold Time
Or Less
14°C (25°F)
Max.
Condition B
Minimum
Temperature
Heat Temperature Hold Time
Minimum Hold Time
Maximum Hold Time
14°C (25°F)Max.
Condition A
Maximum
Temperature
0.2 x Max. Hold
Time Or Less
Figure 3.1 – Cr-Mo Heat Treatment Criteria
2010 SECTION VIII, DIVISION 2
3-50
Tension Test
Specimen
t
s
h
r
Tension Test Specimen
t
s
r
t
s
e
Note: These details are not permissible if machined from plate unless the requirements of paragraph 3.9 are
satisfied.
Figure 3.2 – Typical Locations for Tensile Specimens
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2010 SECTION VIII, DIVISION 2
3-51
Maximum Nominal Thickness of Material or Weld, in
0.00 0.25 0.50 0.75 1.00 1.25 1.50
Cv, ft-lb (average of three specimens)
10
20
30
40
50
60
70
(See Note g))
80 ksi≥
38 ksi≤
65 ksi
50 ksi
Figure 3.3 – Charpy V-Notch Impact Test Requirements for Full-Size Specimens for Carbon and Low
Alloy Steels As a Function of the Minimum Specified Yield Strength – Parts Not Subject to PWHT
2010 SECTION VIII, DIVISION 2
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Maximum Nominal Thickness of Material or Weld, mm
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38
Cv, Joules (average of three specimens)
20
30
40
50
60
70
80
90
(See Note g))
450 MPa
345 MPa
550 MPa≥
260 MPa≤
Figure 3.3M – Charpy V-Notch Impact Test Requirements for Full-Size Specimens for Carbon and Low
Alloy Steels As a Function of the Minimum Specified Yield Strength – Parts Not Subject to PWHT
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2010 SECTION VIII, DIVISION 2
3-53
Maximum Nominal Thickness of Material or Weld, in
01234567
Cv, ft-lb (average of three specimens)
10
20
30
40
50
60
70
80 ksi≥
50 ksi
65 ksi
38 ksi≤
Figure 3.4 – Charpy V-Notch Impact Test Requirements for Full-Size Specimens for Carbon and Low
Alloy Steels As a Function of the Minimum Specified Yield Strength – Parts Subject to PWHT
2010 SECTION VIII, DIVISION 2
3-54
Maximum Nominal Thickness of Material or Weld, mm
0 20 40 60 80 100 120 140 160 180
Cv, Joules (average of three specimens)
20
30
40
50
60
70
80
90
550 MPa≥
450 MPa
345 MPa
260 MPa≤
Figure 3.4M – Charpy V-Notch Impact Test Requirements for Full-Size Specimens for Carbon and Low
Alloy Steels As a Function of the Minimum Specified Yield Strength – Parts Subject to PWHT
Notes for Figures 3.3, 3.3M, 3.4, and 3.4M
a) Interpolation between yield strength values is permitted.
b) The minimum impact energy for one specimen shall not be less than two-thirds of the average impact
energy required for three specimens.
c) Materials produced and impact tested in accordance with SA-320, SA-333, SA-334, SA-350, SA-352,
SA-420, SA-437, SA-508 Grade 5 Class 2, SA-540 (except for materials produced under Table 2, Note
4 in the specification), SA-723, and SA-765 do not have to satisfy these energy values. Materials
produced to these specifications are acceptable for use at a minimum design metal temperature not
colder than the test temperature when the energy values required by the applicable specification are
satisfied.
d) If the material specified minimum tensile strength is greater than or equal to 655 MPa (95 ksi), then the
material toughness requirements shall be in accordance with paragraph 3.11.2.1.b.2.
e) Data of Figures 3.3 and 3.3M are shown in Table 3.12.
f) Data of Figures 3.4 and 3.4M are shown in Table 3.13.
g) See paragraph 3.11.2.1.b.1 for Charpy V-notch specimen thicknesses less than 10 mm (0.394 in.)
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2010 SECTION VIII, DIVISION 2
3-55
A
A
0.394 In.
(10,01 mm)
Charpy V-Notch Specimen
Width Along Notch a
A-A
0.079 In.
(2,01 mm)
B
B
Broken Specimen
Impact
b
B-B
Figure 3.5 – Illustration of Lateral Expansion in a Broken Charpy V-Notch Specimen
2010 SECTION VIII, DIVISION 2
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Maximum Nominal Thickness of Material or Weld, in.
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
C
V
Lateral Expansion, mils
10
12
14
16
18
20
22
24
26
28
30
32
34
Figure 3.6 – Lateral Expansion Requirements
Maximum Nominal Thickness of Material or Weld, mm
0 20406080100
C
V
Lateral Expansion, mm
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Figure 3.6M – Lateral Expansion Requirements
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2010 SECTION VIII, DIVISION 2
3-57
Nominal Governing Thickness, in.
0.00 0.25 0.50 0.75 1.00 1.25 1.50
Minimum Design Metal Temperature, °F
-60
-40
-20
0
20
40
60
80
100
120
Impact Testing Required
A
B
D
C
Figure 3.7 – Impact Test Exemption Curves – Parts Not Subject to PWHT
2010 SECTION VIII, DIVISION 2
3-58
Nominal Governing Thickness, mm
0 5 10 15 20 25 30 35
Minimum Design Metal Temperature, °C
-60
-40
-20
0
20
40
60
Impact Testing Required
A
B
C
D
Figure 3.7M – Impact Test Exemption Curves – Parts Not Subject to PWHT
38
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