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Standard Specifications for Valve Material-Part 3

Nov 16, 2015

17. Type 317 Stainless Steel ASTM A479 Grade UNS S31700

Temp. range = −325 to 1500°F (−198 to 816°C); above 1000°F (538C), 0.04 C required

Composition (Percent)

CMnpSSiCrNiMoNFe
0.08 max2.0 max0.045 max0.03 max1.0 max18.0 to 20.011.0 to15.03.0 to 4.00.1 maxRemainder


18. Cast Type 317 Stainless Steel ASTM A351 Grade CG8M

Temp. range = −325 to 1000°F (−198 to 538°C)

Composition (Percent)

CMnSiPSCrNiMo
0.08 max1.5 max1.5 max0.04 max0.04 max18.0 to 21.09.0 to 13.02.0 to 3.0


19. Type 410 Stainless Steel ASTM A276 Grade S41000

Temp. range = Annealed condition,−20 to 1200°F (−29 to 649°C); Heat treated 38 HRC, −20 to 800°F (−29 to 427°C)

Composition (Percent)

CMnPSSiCrFe
0.15 max1.0 max0.04 max0.03 max1.0 max11.5 to 13.5Remainder


20.Type 17-4PH Stainless Steel ASTM A564 Grade 630, UNS S17400

Temp. range = −20 to 650°F (−29 to 343°C). Can be used to 800°F (427°C) for applications, such as cages, where stresses are generally compressive, and there is no impact loading.

Composition (Percent)

CMnSiPSCrNbCuNiFe
0.07 max1.0 max1.0 max0.04 max0.03 max15.0 to 17.50.15 to 0.453.0 to 5.03.0 to 5.0Remainder


21.Type 254 SMO Stainless Steel ASTM A479 Grade UNS S31254

Temp. range = −325 to 750°F (−198 to 399)°C

Composition (Percent)

CMnPSSiCrNiMoNFe
0.02 max1.0 max0.03 max0.01 max0.8 max18.5 to 20.517.5 to 18.56.0 to 6.50.18−0.22Remainder


22. Cast Type 254 SMO Stainless Steel ASTM A351 Grade CK3MCuN

Temp. range = −325 to 750°F (−198 to 399°C)

Composition (Percent)

CMnSiPSCrNiMo
0.025 max1.2 max1.0 max0.044 max0.01 max19.5 to 20.517.5 to 19.56.0 to 7.0


23. Type 2205, S31803 Duplex Stainless Steel ASTM A279 Grade UNS S31803

Temp. range = −20 to 600°F (−29 to 316°C)

Composition (Percent)

CMnPSSiCrNiMoNFe
0.03 max2.0 max0.03 max0.02 max1.0 max21.0 to 23.04.5 to 6.52.5 to 3.50.03 to 0.2Remainder


24. Cast Type 2205, S31803 Stainless Steel ASTM A890 Grade 4a, CD3MN

Temp. range = −20 to 600°F (−29 to 316°C)

Composition (Percent)

CMnSiPSCrNiMoNFe
0.03 max1.5 max1.0 max0.04 max0.02 max21.0 to 23.54.5 to 6.52.5 to 3.50.1 to 0.3Remainder


25. Cast Iron ASTM A126 Class B, UNS F12102

Temp. range = Pressure Retaining Components, −20 to 450°F (−29 to 232°C); Non-Pressure Retaining Components, −100 to 800°F (73 to 427°C); ANSI B31.5 −150°F (−101°C) minimum if the maximum stress does not exceed 40% of the ambient allowable stress.

Composition (Percent)

PS
0.75 max0.15 max



Previous: Standard Specifications for Valve Material-Part 4

Next: Standard Specifications for Valve Material-Part 2

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