Only for single side butt welds W 05 Short imperfections h u 02 t but max 2 mm

Only for single side butt welds w 05 short

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Only for single side butt welds W 0,5 Short imperfections: h u 0,2 t , but max. 2 mm Not permitted Not permitted 5 EN ISO 5817:2007 Licensed copy:PONTYPRIDD COLLEGE, 12/01/2008, Uncontrolled Copy, © BSI
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Table 1 ( continued ) Limits for imperfections for quality levels No. Reference to ISO 6520-1:1998 Imperfection designation Remarks t mm D C 0,5 to 3 Short imperfections: h u 0,2 t Short imperfections: h u 0,1 t Not permitted 1.7 5011 5012 Continuous undercut Intermittent undercut Smooth transition is required. This is not regarded as a systematic imperfection. 3 h u 0,2 t , but max. 1 mm h u 0,1 t , but max. 0,5 mm h u 0,05 t , but max. 0,5 mm 0,5 to 3 h u 0,2 mm + 0,1 t Short imperfections: h u 0,1 t Not permitted 1.8 5013 Shrinkage groove Smooth transition is required. 3 Short imperfections: h u 0,2 t , but max. 2 mm Short imperfections: h u 0,1 t , but max.1 mm Short imperfections: h u 0,05 t , but max. 0,5 mm 1.9 502 Excess weld metal (butt weld) Smooth transition is required. W 0,5 h u 1 mm + 0,25 b , but max. 10 mm h u 1 mm + 0,15 b , but max. 7 mm h u 1 mm + 0,1 b , but max. 5 mm 6 B EN ISO 5817:2007 Licensed copy:PONTYPRIDD COLLEGE, 12/01/2008, Uncontrolled Copy, © BSI
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Table 1 ( continued ) Limits for imperfections for quality levels No. Reference to ISO 6520-1:1998 Imperfection designation Remarks t mm D C B 1.10 503 Excessive convexity (fillet weld) W 0,5 h u 1 mm + 0,25 b , but max. 5 mm h u 1 mm + 0,15 b , but max. 4 mm h u 1 mm + 0,1 b , but max. 3 mm 0,5 to 3 h u 1 mm + 0,6 b h u 1 mm + 0,3 b h u 1 mm + 0,1 b 1.11 504 Excess penetration 3 h u 1 mm + 1,0 b , but max. 5 mm h u 1 mm + 0,6 b , but max. 4 mm h u 1 mm + 0,2 b , but max. 3 mm 7 EN ISO 5817:2007 Licensed copy:PONTYPRIDD COLLEGE, 12/01/2008, Uncontrolled Copy, © BSI
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Table 1 ( continued ) Limits for imperfections for quality levels No. Reference to ISO 6520-1:1998 Imperfection designation Remarks t mm D C 1.12 505 Incorrect weld toe — butt welds W 0,5 W 90° W 100° W 150° — fillet welds 1 W 2 W W 0,5 W 90° W 110° W 110° 1.13 506 Overlap W 0,5 h u 0,2 b Not permitted Not permitted 0,5 to 3 Short imperfections: h u 0,25 t Short imperfections: h u 0,1 t Not permitted 1.14 509 511 Sagging Incompletely filled groove Smooth transition is required 3 Short imperfections: h u 0,25 t but max. 2 mm Short imperfections: h u 0,1 t but max. 1 mm Short imperfections: h u 0,05 t but max. 0,5 mm 1.15 510 Burn through W 0,5 Not permitted Not permitted Not permitted 8 B EN ISO 5817:2007 Licensed copy:PONTYPRIDD COLLEGE, 12/01/2008, Uncontrolled Copy, © BSI
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Table 1 ( continued ) Limits for imperfections for quality levels No. Reference to ISO 6520-1:1998 Imperfection designation Remarks t mm D C B 1.16 512 Excessive asymmetry of fillet weld (excessive unequal leg length) In cases where an asymmetric fillet weld has not been prescribed. W 0,5 h u 2 mm + 0,2 a h u 2 mm + 0,15 a h u 1,5 mm + 0,15 a 0,5 to 3 h u 0,2 mm + 0,1 t Short imperfections: h u 0,1 t Not permitted 1.17 515 Root concavity Smooth transition is required. 3 Short imperfections: h u 0,2 t , but max. 2 mm Short imperfections: h u 0,1 t , but max. 1 mm Short imperfections: h u 0,05 t , but max. 0,5 mm 1.18 516 Root porosity Spongy formation at the root of a weld due to bubbling of the weld metal at the moment of solidification (e. g. lack of gas backing) W 0,5 Locally permitted Not permitted Not permitted 9 EN ISO 5817:2007 Licensed copy:PONTYPRIDD COLLEGE, 12/01/2008, Uncontrolled Copy, © BSI
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Table 1 ( continued ) Limits for imperfections for quality levels No.
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