Stainless Steel Pipe Standards and Tolerance Tables
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Stainless Steel Pipe Standards
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A269
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Dış Çap
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Et Kalınlığı
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Nominal Dış Çap
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Eğilebilirlik
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Eğilebilirlik
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inç
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(mm)
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inç
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%
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< 1/2
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(-12.7)
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± 0.005 (0.13)
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± 15
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≥ 1/2 < 1 ½
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(12.7 – 38.1)
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± 0.005 (0.13)
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± 10
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≥ 1 ½ < 3 ½
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(38.1 – 88.9)
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± 0.010 (0.25)
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± 10
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≥ 3 ½ < 5 ½
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(88.9 – 139.7)
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± 0.015 (0.38)
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± 10
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≥ 5 ½ < 8
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(139.7 – 203.2)
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± 0.030 (0.76)
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± 10
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A450 – A249
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Dış Çap
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Et Kalınlığı
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Nominal Dış Çap
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Eğilebilirlik
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Eğilebilirlik
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inç
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(mm)
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(min)
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(max)
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%
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inç
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(mm)
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inç
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(mm)
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< 1
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(-25.4)
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0.004
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(0.10)
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0.004
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(0.10)
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≥ 1 ≤ 1 ½
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(25.4 – 25.4)
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0.006
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(0.15)
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0.006
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(0.15)
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> 1 ½ < 2″
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(38.1 – 50.8)
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0.008
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(0.20)
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0.008
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(0.20)
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≥ 2 < 2 ½
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(50.8 – 63.5)
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0.010
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(0.25)
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0.010
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(0.25)
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± 10
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± 10
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≥ 2 ½ < 3
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(63.5 – 76.1)
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0.012
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(0.30)
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0.012
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(0.30)
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≥ 3 ≤4
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(76.1 – 101.6)
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0.015
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(0.38)
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0.015
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(0.38)
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> 4 ≤ 7 ½
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(101.6 – 190.5)
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0.015
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(0.38)
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0.025
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(0.64)
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> 7 ½ ≤ 9
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(190.5 – 228.6)
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0.015
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(0.38)
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0.045
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(1.14)
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A530- A778 – A312
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Dış Çap
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Et Kalınlığı
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Nominal Dış Çap
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Eğilebilirlik
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Eğilebilirlik
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NPS
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(mm)
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(min)
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(max)
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%
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inç
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(mm)
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inç
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(mm)
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1/8″ ≤ 1 ½”
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(10.29 – 48.26)
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0.015
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(0.4)
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0.031
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(0.8)
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> 1 ½” ≤ 4″
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(48.26 – 114.30)
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0.031
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(0.8)
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0.031
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(0.8)
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belirsiz
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> 4″ ≤ 8″
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(114.3 – 219.08)
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0.062
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(1.6)
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0.031
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(0.8)
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-12.5 %
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> 8″ ≤ 18″
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(209.08 – 457.20)
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0.093
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(2.4)
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0.031
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(0.8)
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> 18″ ≤ 26″
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(457.20 – 660.40)
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0.125
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(3.2)
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0.031
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(0.8)
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>26″ ≤ 34″
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(660.40 – 863.60)
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0.156
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(4.0)
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0.031
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(0.8)
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> 34″ ≤ 48″
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(863.90 – 1219.20)
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0.187
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(4.8)
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0.031
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(0.8)
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