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(01 May 2006) FITNET MK7Table C. 1 Validity ranges for as-welded residual stress distributions in ferritic steelsGeometryThickness(mm)YieldStrength(MPa)Plate Butt Welds 24 - 300 310 - 740 1.6 – 4.9Pipe Circumferential Butt Welds 9 - 84 225 - 780 0.35 – 1.9Pipe Seam Welds 50 - 85 345 - 780 Not knownT butt Welds 25 - 100 375 - 420 1.4Tubular and pipe to plate welds 22 - 50 360 - 490 0.6 – 2.0Repair Welds 75 - 152 500 - 590 1.2 – 1.6Electrical Heat Input per UnitLength (KJ/mm)© FITNET 2006 – All rights reserved <strong>Annex</strong> C.15
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