ASME Section VIII div 2 2010. ASME Boiler and Pressure Vessel Code. Alternative Rules

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2010 SECTION VIII-2

7-37

(a) Random Rounded Indications [See Note (1)]

(b) Isolated Indication [See Note (2)]

25 mm (1 in) 25 mm (1 in)

Notes:

1. Typical concentration and size permitted in any 150 mm (6 in) length of weld

2. Maximum size per Table 7.7

Figure 7.5 – Charts for 3 mm (1/8 in) to 6 mm (1/4 in) Wall Thickness, Inclusive

2010 SECTION VIII-2

7-38

(a) Random Rounded Indications [See Note (1)]

(b) Isolated Indication [See Note (2)]

25 mm (1 in) 25 mm (1 in)

Notes:

1. Typical concentration and size permitted in any 150 mm (6 in) length of weld

2. Maximum size per Table 7.7

Figure 7.6 – Charts for Over 6 mm (1/4 in) to 10 mm (3/8 in) Wall Thickness, Inclusive

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2010 SECTION VIII-2

7-39

(a) Random Rounded Indications [See Note (1)]

(b) Isolated Indication [See Note (2)]

25 mm (1 in)25 mm (1 in)

Notes:

1. Typical concentration and size permitted in any 150 mm (6 in.) length of weld

2. Maximum size per Table 7.7

Figure 7.7 – Charts for Over 10 mm (3/8 in) to 19 mm (3/4 in) Wall Thickness, Inclusive

2010 SECTION VIII-2

7-40

(a) Random Rounded Indications [See Note (1)]

(b) Isolated Indication [See Note (2)]

25 mm (1 in)25 mm (1 in)

Notes:

1. Typical concentration and size permitted in any 150 mm (6 in) length of weld

2. Maximum size per Table 7.7

Figure 7.8 – Charts for Over 19 mm (3/4 in) to 50 mm (2 in) Wall Thickness, Inclusive

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2010 SECTION VIII-2

7-41

(a) Random Rounded Indications [See Note (1)]

(b) Isolated Indication [See Note (2)]

25 mm (1 in)25 mm (1 in)

Notes:

1. Typical concentration and size permitted in any 150 mm (6 in.) length of weld

2. Maximum size per Table 7.7

Figure 7.9 – Charts for Over 50 mm (2 in) to 100 mm (4 in) Wall Thickness, Inclusive

2010 SECTION VIII-2

7-42

(a) Random Rounded Indications [See Note (1)]

(b) Isolated Indication [See Note (2)]

25 mm (1 in)

Notes:

1. Typical concentration and size permitted in any 150 mm (6 in.) length of weld

2. Maximum size per Table 7.7

Figure 7.10 – Charts for Over 100 mm (4 in.) Wall Thickness

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2010 SECTION VIII-2

7-43

Figure 7.11 – Single Indications

2010 SECTION VIII-2

7-44

Surface Flaw #1

Unclad Surface

(whichever

greater)

S < 2d

or 2d

S > 0.4a

Surface Flaw #2

(whichever

greater)

S < 2d

or 2d

(whichever is

greater)

S < 2d

or 2d

Surface Flaw #3

S < 2d

or 2d

(whichever is greater)

S > 0.4d

S < 2d

or 2d

(whichever is greater)

Clad Surface

S > 0.4d

Pressure Retaining Surface

Of Unclad Component Or

Clad-Base Metal Interface

Of Clad Component

Surface Flaw #5

S < 2d

or d

(whichever is greater)

Surface Flaw #4

d,d

,2d

= depths of

individual flaws

S < 0.4d

S > 0.4d

= 2a

S < 2d

or 2d

(whichever is

greater)

Figure 7.12 – Multiple Planar Flaws Oriented in a Plane Normal to the Pressure Retaining Surface

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2010 SECTION VIII-2

7-45

S < 1/2 In.

Surface Flaws

S < 1/2 in.

Figure 7.13 – Surface and Subsurface Flaws

2010 SECTION VIII-2

7-46

A - B - C - D

Surface Flaw #1

Clad Surface

S < d

or 2d

(whichever is

greater)

Unclad Surface

E - F - G - H

Surface Flaw #2

Pressure Retaining Surface

Of Unclad Component Or

Clad-Base Metal Interface

Of Clad Component

S > 0.4d

< d

or 2d

(whichever is

greater)

,2d

= Depths Of

Individual Flaws

< 2d

or 2d

(whichever is greater)

< 2d

or 2d

(whichever is

greater)

< 2d

or 2d

(whichever is

greater)

< 2d

or 2d

(whichever is

greater)

S > 0.4d

Figure 7.14 – Non-Aligned Coplanar Flaws in a Plane Normal to the Pressure Retaining Surface

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