Stainless Steel Pipe Fittings Tolerance

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by Unichem Steel

Stainless Steel Pipe Fittings Tolerance

Nominal Diameter O.D.For Bevel End I.D.For End Wall Thickness Elbow Tee Reducer Cap 180°Elbow
DN NPS A B C M H E O K Roughness
15-65 1/2-2 1/2 +1.6/-0.8 0.8 -12.50% 1.6 1.6 1.6 1.6 1.6 3.2 6.4 6.4 0.8
80-100 3-4 1.6 1.6 6.4
125-200 5-8 +2.4/-1.6
250-450 10-18 +4/-3.2 3.2 2.4 2.4 2.4 2.4 2.4 9.6
500-600 20-24 +6.4/-4.8 4.8 3.2 3.2 3.2 3.2 4.8 9.6
650-750 26-30
4.8 4.8 4.8 4.8
800-1200 32-48
1250-1500 50-60 +9.6/-6.4 6.4 9.6 9.6 9.6 9.6 9.6
1550-1750 62-70 +12.7/-9.6 9.6 12.7 12.7
1800-2000 72-80 +16/-12 12 16 16

Buttweld Fittings Angularity Tolerance

Nominal Size DN 15-100 125-200 250-300 350-400 450-600 650-750 800-1050 1100-1200 1300-1500
NPS 1/2 – 4 5-8 10-12 14-16 18-24 26-30 32-42 44-48 52-60
Angularity
Tolerance		 Off Angle Q 1 2 3 3 4 5 5 5 6.4
Off Plain P 2 4 5 6 10 10 13 19 20