<p>2010 SECTION VIII DIVISION 1</p><p>MANDATORY APPENDIX 4 ROUNDED INDICATIONS CHARTS ACCEPTANCE STANDARD FOR RADIOGRAPHICALLY DETERMINED ROUNDED INDICATIONS IN WELDS4-1 APPLICABILITY OF THESE STANDARDS (3) 132 in. for t greater than 14 in. to 2 in. (6 mm to 50 mm), incl. (4) 116 in. for t greater than 2 in. (50 mm) (c) Maximum Size of Rounded Indication. (See Table 4-1 for examples.) The maximum permissible size of any indication shall be 14t, or 532 in. (4 mm), whichever is smaller; except that an isolated indication separated from an adjacent indication by 1 in. (25 mm) or more may be 1 3t, or 14 in. (6 mm), whichever is less. For t greater than 2 in. (50 mm) the maximum permissible size of an isolated indication shall be increased to 38 in. (10 mm). (d) Aligned Rounded Indications. Aligned rounded indications are acceptable when the summation of the diameters of the indications is less than t in a length of 12t. See Fig. 4-1. The length of groups of aligned rounded indications and the spacing between the groups shall meet the requirements of Fig. 4-2. (e) Spacing. The distance between adjacent rounded indications is not a factor in determining acceptance or rejection, except as required for isolated indications or groups of aligned indications. (f) Rounded Indication Charts. The rounded indications characterized as imperfections shall not exceed that shown in the charts. The charts in Figs. 4-3 through 4-8 illustrate various types of assorted, randomly dispersed and clustered rounded indications for different weld thicknesses greater than 18 in. (3 mm). These charts represent the maximum acceptable concentration limits for rounded indications. The charts for each thickness range represent full-scale 6 in. (150 mm) radiographs, and shall not be enlarged or reduced. The distributions shown are not necessarily the patterns that may appear on the radiograph, but are typical of the concentration and size of indications permitted. (g) Weld Thickness t less than 1/8 in. (3 mm). For t less than 18 in. (3 mm) the maximum number of rounded indications shall not exceed 12 in a 6 in. (150 mm) length of weld. A proportionally fewer number of indications shall419</p><p>These standards are applicable to ferritic, austenitic, and nonferrous materials.</p><p>4-2</p><p>TERMINOLOGY</p><p>(a) Rounded Indications. Indications with a maximum length of three times the width or less on the radiograph are dened as rounded indications. These indications may be circular, elliptical, conical, or irregular in shape and may have tails. When evaluating the size of an indication, the tail shall be included. The indication may be from any imperfection in the weld, such as porosity, slag, or tungsten. (b) Aligned Indications. A sequence of four or more rounded indications shall be considered to be aligned when they touch a line parallel to the length of the weld drawn through the center of the two outer rounded indications. (c) Thickness t. t is the thickness of the weld, excluding any allowable reinforcement. For a butt weld joining two members having different thicknesses at the weld, t is the thinner of these two thicknesses. If a full penetration weld includes a llet weld, the thickness of the throat of the llet shall be included in t.</p><p>4-3</p><p>ACCEPTANCE CRITERIA</p><p>(a) Image Density. Density within the image of the indication may vary and is not a criterion for acceptance or rejection. (b) Relevant Indications. (See Table 4-1 for examples.) Only those rounded indications which exceed the following dimensions shall be considered relevant. (1) 110 t for t less than 18 in. (3 mm) (2) 1 64 in. for t from 18 in. to 14 in. (3 mm to 6 mm), incl.</p><p>Copyright c 2010 by the American Society of Mechanical Engineers. No reproduction may be made of this material without written consent of ASME.</p><p>2010 SECTION VIII DIVISION 1</p><p>TABLE 4-1Customary Units Maximum Size of Acceptable Rounded Indication, in. Random1</p><p>Thickness t, in. Less than 81 3 1</p><p>Isolated1</p><p>Maximum Size of Nonrelevant Indication, in.1</p><p>4t</p><p>3t 10t 0.015 0.015 0.015 0.031 0.031 0.031 0.031 0.031 0.031 0.031 0.031 0.063</p><p>be permitted in welds less than 6 in. (150 mm) in length. (h) Clustered Indications. The illustrations for clustered indications show up to four times as many indications in a local area, as that shown in the illustrations for random indications. The length of an acceptable cluster shall not exceed the lesser of 1 in. (25 mm) or 2t. Where more than one cluster is present, the sum of the lengths of the clusters shall not exceed 1 in. (25 mm) in a 6 in. (150 mm) length weld.</p><p>8</p><p>16 1 4</p><p>0.031 0.047 0.063 0.078 0.091 0.109 0.125 0.142 0.156 0.156 0.156 0.156</p><p>0.042 0.063 0.083 0.104 0.125 0.146 0.168 0.188 0.210 0.230 0.250 0.375 SI Units</p><p>5</p><p>16 3 8 7 16 1 2 16 5 8 11 163 9</p><p>4 to 2, incl. Over 2</p><p>Thickness t, mm Less than 3 3 5 6 8 10 11 13 14 16 17 19.0 to 50, incl. Over 50</p><p>Maximum Size of Acceptable Rounded Indication, mm Random1 4t 0.79 1.19 1.60</p><p>Isolated1 3t 1.07 1.60 2.11</p><p>Maximum Size of Nonrelevant Indication, mm1 10t 0.38 0.38 0.38</p><p>1.98 2.31 2.77 3.18 3.61 3.96 3.96 3.96 3.96</p><p>2.64 3.18 3.71 4.27 4.78 5.33 5.84 6.35 9.53</p><p>0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 1.60</p><p>GENERAL NOTE: This Table contains examples only.</p><p>420</p><p>Copyright c 2010 by the American Society of Mechanical Engineers. No reproduction may be made of this material without written consent of ASME.</p><p>2010 SECTION VIII DIVISION 1</p><p>Lx</p><p>L1</p><p>421</p><p>Copyright c 2010 by the American Society of Mechanical Engineers. No reproduction may be made of this material without written consent of ASME.</p><p>L2</p><p>GENERAL NOTE: Sum of L1 to Lx shall be less than t in a length of 12t.</p><p>FIG. 4-1 ALIGNED ROUNDED INDICATIONS</p><p>FIG. 4-2</p><p>GROUPS OF ALIGNED ROUNDED INDICATIONS</p><p>L1</p><p>3L2</p><p>L2</p><p>3L3</p><p>L3</p><p>3L3</p><p>L4</p><p>2010 SECTION VIII DIVISION 1</p><p>422GENERAL NOTE: Sum of the group lengths shall be less than t in a length of 12t. Maximum Group Length L = 1/4 in. (6 mm) for t less than 3/4 in. (19 mm) L = 1/3t for t 3/4 in. (19 mm) to 21/4 in. (57 mm) L = 3/4 in. (19 mm) for t greater than 21/4 in. (57 mm) Minimum Group Spacing 3L where L is the length of the longest adjacent group being evaluated.</p><p>Copyright c 2010 by the American Society of Mechanical Engineers. No reproduction may be made of this material without written consent of ASME.</p><p>2010 SECTION VIII DIVISION 1</p><p>FIG. 4-3 CHARTS FOR t EQUAL TO 18 in. to 14 in. (3 mm to 6 mm), INCLUSIVE</p><p>(a) Random Rounded Indications [See Note (1)]</p><p>1 in. (25 mm)</p><p>1 in. (25 mm)</p><p>(b) Isolated Indication [See Note (2)]</p><p>(c) Cluster</p><p>NOTES: (1) Typical concentration and size permitted in any 6 in. (150 mm) length of weld. (2) Maximum size per Table 4-1.</p><p>FIG. 4-4 CHARTS FOR t OVER 14 in. to 38 in. (6 mm to 10 mm), INCLUSIVE</p><p>(a) Random Rounded Indications [See Note (1)]</p><p>1 in. (25 mm)</p><p>1 in. (25 mm)</p><p>(b) Isolated Indication [See Note (2)]</p><p>(c) Cluster</p><p>NOTES: (1) Typical concentration and size permitted in any 6 in. (150 mm) length of weld. (2) Maximum size per Table 4-1.</p><p>423</p><p>Copyright c 2010 by the American Society of Mechanical Engineers. No reproduction may be made of this material without written consent of ASME.</p><p>2010 SECTION VIII DIVISION 1</p><p>FIG. 4-5 CHARTS FOR t OVER 38 in. to 34 in. (10 mm to 19 mm), INCLUSIVE</p><p>(a) Random Rounded Indications [See Note (1)]</p><p>1 in. (25 mm)</p><p>1 in. (25 mm)</p><p>(b) Isolated Indication [See Note (2)]</p><p>(c) Cluster</p><p>NOTES: (1) Typical concentration and size permitted in any 6 in. (150 mm) length of weld. (2) Maximum size per Table 4-1.</p><p>424</p><p>Copyright c 2010 by the American Society of Mechanical Engineers. No reproduction may be made of this material without written consent of ASME.</p><p>2010 SECTION VIII DIVISION 1</p><p>FIG. 4-6 CHARTS FOR t OVER 34 in. to 2 in. (19 mm to 50 mm), INCLUSIVE</p><p>(a) Random Rounded Indications [See Note (1)]</p><p>1 in. (25 mm)</p><p>1 in. (25 mm)</p><p>(b) Isolated Indication [See Note (2)]</p><p>(c) Cluster</p><p>NOTES: (1) Typical concentration and size permitted in any 6 in. (150 mm) length of weld. (2) Maximum size per Table 4-1.</p><p>425</p><p>Copyright c 2010 by the American Society of Mechanical Engineers. No reproduction may be made of this material without written consent of ASME.</p><p>2010 SECTION VIII DIVISION 1</p><p>FIG. 4-7 CHARTS FOR t OVER 2 in. to 4 in. (50 mm to 100 mm), INCLUSIVE</p><p>(a) Random Rounded Indications [See Note (1)]</p><p>1 in. (25 mm)</p><p>1 in. (25 mm)</p><p>(b) Isolated Indication [See Note (2)]</p><p>(c) Cluster</p><p>NOTES: (1) Typical concentration and size permitted in any 6 in. (150 mm) length of weld. (2) Maximum size per Table 4-1.</p><p>426</p><p>Copyright c 2010 by the American Society of Mechanical Engineers. No reproduction may be made of this material without written consent of ASME.</p><p>2010 SECTION VIII DIVISION 1</p><p>FIG. 4-8 CHARTS FOR t OVER 4 in. (100 mm)</p><p>(a) Random Rounded Indications [See Note (1)]</p><p>1 in. (25 mm)</p><p>1 in. (25 mm)</p><p>(b) Isolated Indication [See Note (2)]</p><p>(c) Cluster</p><p>NOTES: (1) Typical concentration and size permitted in any 6 in. (150 mm) length of weld. (2) Maximum size per Table 4-1.</p><p>427</p><p>Copyright c 2010 by the American Society of Mechanical Engineers. No reproduction may be made of this material without written consent of ASME.</p>