Valve Body Material Selection Guide 

Material Group Common Name  Material Type Forging Spec UNS Casting Spec.


DIN DIN W.No Application
Carbon Steel CS C-Mn-Fe ASTM A105N K03504 A216-WCB C22.8


Low Temperature Carbon Steel LTC C-Mn-Fe  A350 LF2 K03011  A352 LC1

A352 LCB

A352 LCC

TSTE 355 DIN 18103 1.0566 General non-corrosive service

from -50ºF (-46ºC) to 650ºF (340ºC), LF2 to 800ºF (427ºC)

Low Temperature Alloy Steel Nickel Steel 3.1/2Ni A350 LF3 K32025 A352 LC3 10Ni14 1.5637 -150ºF (-101ºC) to 650ºF (340ºC)
Low Alloy Steel Moly Steel C-1/2Mo 182-F1 K12822 A217 WC1 15Mo3 1.5415 Up to 875ºF (468ºC)
Alloy Steel Chrome Moly 1-1/4Cr-1/2Mo A182 F11 Cl2 K11572 A217 WC6 13CrMo44 1.7335 Up to 1100ºF (593ºC)
2-1/4Cr-1Mo A182 F22 Cl3 K21590 A217 WC9 10CrMo910 1.7380 Up to 1100ºF (593ºC), HP steam
5Cr-1/2Mo A182 5A K41545 A217 C5 12CrMo195 1.7362 High temp. refinery service
9Cr-1Mo-V A182 F9 K90941 A217 C12 X 12CrMo 91 1.7386 High temp. erosive refinery service
9Cr-1Mo-V A182 F91 A217 C12A X 10CrMoVNb91 1.4903 High pressure steam
Stainless Steel Austentic Stainless Steel 300 Series S.Steel 304: 18Cr-8Ni A182 F304 S30400 A351 CF8 DIN X5CrNi 189 1.4301 0.04% min. carbon for temp. >1000ºF (538ºC)
304L:18Cr-8Ni A182 F304L S30403 A351 CF3 X 2 CrNi1911 1.4306 Up to 800ºF (427ºC)
304H A182 F304H S30409 A351 CF10 N/A N/A
316:16Cr-12Ni-2Mo A182 F316 S31600 A351 CF8M DIN X5CrNiMo18 10 1.4401 0.04% min. carbon for temp. >1000ºF (538ºC)
316L:16Cr-12Ni-2Mo A182 F316L S31603 A351 CF3M X 5 CrNiMo 17 12 2 1.4404 Up to 800ºF (427ºC)
316H A182 F316H S31609 A351 CF10M
316Ti A182 F316 Ti S31635 X 6 CrNiMoTi 17 12 2 1.4571 Special Grade
321 : 18Cr-10Ni-Ti A182 F321 S32100 X 6 CrNiTi 18 10 1.4541 0.04%min. carbon (grade F321H) and heat treat at 2000ºF (1100ºC) for service temps. >1000ºF (538ºC)
321H A182 F321H S32109
347 : 18Cr-10Ni-Cb(Nb) A182 F347 S34700 A351 CF8C DIN 8556 1.4550
347H A182-F347H S34709
317L A182-F317 S31703 A351-CG3M* X2CrNiMo18-16-4 1.4438
Alloy 20 28Ni-19Cr-Cu-Mo A182 F20 N08020 A351-CN7M DIN 1.4500 2.4660 Service to 600ºF (316ºC)
Duplex 2205 22Cr-5Ni-3Mo-N A182 F51 S31803 A351 -CD3MN X2CrNiMoN22-5-3 1.4462 Service to 600ºF (316ºC)-The original S31803 UNS designation has been supplemented by S32205 which has higher minimum N.CR and Mo
S32205 A890-J92205 DIN 10088-1 (95)
Super Duplex 2507 25Cr-7Ni-4Mo-N A182 F53 S32750 A351-CD4MCu* X2CrNiMoN27-7-4 1.4501 Service to 600ºF (316ºC)
A890 5A* DIN 10088-1(95)
Super Duplex F55 25Cr-7Ni-3.5Mo-N-Cu-W A182 F55 S32760 A995-CD3MWCuN Service to 600ºF (316ºC)
Super Austentic 6Mo 20Cr-18Ni-6Mo A182 F44 S31254 A351-CK3MCuN X1CrNiMoCuN20-18-7 1.4547 Service to 600ºF (316ºC)
DIN 10088-1 (95)
Nickel-Iron Alloy Incoloy 800 33Ni-42Fe-21Cr B564-N08800 N08800 X10NiCrAlTi32-20 1.4876 Service to 1000ºF (538ºC)
Incoloy 825 42Ni-21.5Cr-3Mo-2.3Cu B564-N08825* N08825 A494-CU5MCuC* DIN 17744 2.4858 Service to 600ºF (316ºC)
Nickel Nickel 99/95Ni B160-N02200 N02200 A494-CZ-100 NW2200 1.7740
Nickel Copper Monel 400 67Ni-30Cu B564-N04400 N04400 A494-M35-1 DIN 17730 2.4360
Monel 500 B564-N05500 N05500 2.4375
Nickel Alloy 904L 904L N08904 Z2NCDU 25-20 1.4539

© 2019 Zhejiang Relia Valve Co., Ltd.,China + 86-577-86373155