Valve Material Equivalency Chart
Cross-reference valve body and trim material specifications across ASTM, EN/DIN, JIS, and IS (Indian) standards. Includes composition, temperature limits, and application notes.
Standards: ASTM A216/A217/A351/A352/A182/A350 | EN 10213/10222 | JIS B2220 | IS 2062/6911
Engineering Reference Only — Equivalencies are approximate. Composition ranges, mechanical property requirements, and testing conditions differ between standards. Always verify with the applicable standard and a qualified materials engineer before substitution.
Cast Body Materials
15 materials — scroll right on mobile
| ASTM Designation | UNS | Common Name | EN / DIN | JIS | IS (India) | Composition (key elements) | Max °C | Min °C | Notes / Applications |
|---|---|---|---|---|---|---|---|---|---|
| A216 WCB | J03002 | Carbon Steel (CS) | 1.0619 / GP240GH | SCPH2 | IS 1030 Gr. 340-570 | C ≤ 0.30%, Mn ≤ 1.00%, Si ≤ 0.60% | 425 | -29 | Most common valve body material for general service. API 6D standard material. |
| A216 WCC | J02503 | Low-Alloy Carbon Steel | 1.0558 / GP280GH | SCPH6 | IS 1030 Gr. 410-570 | C ≤ 0.25%, Mn ≤ 1.20%, Si ≤ 0.60% | 450 | -29 | Higher strength than WCB. Used for higher pressure classes. |
| A217 WC6 | J12072 | 1.25Cr-0.5Mo Alloy Steel | 1.7362 / GX12CrMo5 | SCPH11 | IS 1030 Gr. Cr-Mo | C ≤ 0.15%, Cr 1.00-1.50%, Mo 0.45-0.65% | 595 | -29 | Creep-resistant for high-temperature steam service above 425°C. |
| A217 WC9 | J21890 | 2.25Cr-1Mo Alloy Steel | 1.7380 / GX10CrMo9-1 | SCPH21 | — | C ≤ 0.18%, Cr 2.00-2.75%, Mo 0.90-1.20% | 650 | -29 | High-temperature hydrogen service (Nelson curves). Power plant steam valves. |
| A217 C12A | J84090 | 9Cr-1Mo-V (P91 equivalent) | 1.4903 / GX10CrMoVNb9-1 | SCPH32 | — | Cr 8.00-9.50%, Mo 0.85-1.05%, V 0.18-0.25%, Nb 0.06-0.10% | 649 | -29 | Ultra-high-temperature steam lines. Requires PWHT. Matches P91 piping. |
| A351 CF8M | J92900 | 316 Stainless Steel | 1.4408 / GX5CrNiMo19-11-2 | SCS16A | IS 6913 / CF8M | C ≤ 0.08%, Cr 18-21%, Ni 9-12%, Mo 2.0-3.0% | 870 | -196 | Most common austenitic SS. Chloride and mild acid resistance. Cryogenic service. |
| A351 CF8 | J92600 | 304 Stainless Steel | 1.4308 / GX5CrNi19-10 | SCS13A | IS 6913 / CF8 | C ≤ 0.08%, Cr 18-21%, Ni 8-11% | 870 | -196 | General corrosion resistance. No Mo — less resistant to chlorides than CF8M. |
| A351 CN7M | N08007 | Alloy 20 | 1.4500 / GX5NiCrMoCuNb20-18-2 | — | — | Cr 19.0-22.0%, Ni 27.5-30.5%, Mo 2.0-3.0%, Cu 3.0-4.0% | 400 | -29 | Excellent resistance to hot sulphuric acid. Used in chemical/fertiliser plants. |
| A352 LCB | J03003 | Low-Temp Carbon Steel | 1.0553 / GE200 | SCPL1 | — | C ≤ 0.30%, Mn 0.50-0.80%, Si ≤ 0.60% | 345 | -46 | Cryogenic/low-temp service. Charpy impact tested at -46°C. |
| A352 LCC | J02505 | Low-Temp Carbon Steel (higher strength) | 1.0565 / GP280GH LT | SCPL21 | — | C ≤ 0.25%, Mn 0.50-0.90%, Si ≤ 0.60% | 345 | -46 | Preferred for low-temp service: LNG receiving, cold utilities, ethylene plants. |
| A351 CF3M | J92800 | 316L Stainless Steel | 1.4404 / GX2CrNiMo19-11-2 | SCS16 | — | C ≤ 0.03%, Cr 17-21%, Ni 9-13%, Mo 2.0-3.0% | 455 | -196 | Low carbon: no sensitisation after welding. Pharmaceutical, food, cryogenic. |
| A890 Gr. 4A (2205) | J92205 | Duplex 2205 | 1.4470 / GX2CrNiMoN22-5-3 | SCS10 | — | Cr 21-23%, Ni 4.5-6.5%, Mo 2.5-3.5%, N 0.10-0.30% | 300 | -46 | High strength + corrosion resistance. Seawater, offshore, desalination. PREN ≥ 35. |
| A890 Gr. 5A (2507) | J93404 | Super Duplex 2507 | 1.4517 / GX2CrNiMoCuN25-6-3 | — | — | Cr 24-26%, Ni 6-8%, Mo 3.0-5.0%, N 0.20-0.35% | 300 | -46 | Maximum chloride resistance. Subsea, offshore injection lines. PREN ≥ 40. |
| A494 CW2M | N26455 | Hastelloy C-4 | 2.4610 / NiMo16Cr16Ti | — | — | Ni bal., Cr 15-18%, Mo 14-17% | 650 | -196 | Severe corrosion service: HCl, H2SO4, chlorine, bleach. Chemical plant. |
| A494 CX2MW | N26022 | Hastelloy C-276 | 2.4619 / NiMo16Cr15W | — | — | Ni bal., Cr 14.5-16.5%, Mo 15-17%, W 3-4.5% | 650 | -196 | Broadest corrosion resistance of Ni alloys. Flue gas desulphurisation, acids. |
Forged Body Materials
12 materials — scroll right on mobile
| ASTM Designation | UNS | Common Name | EN / DIN | JIS | IS (India) | Composition (key elements) | Max °C | Min °C | Notes / Applications |
|---|---|---|---|---|---|---|---|---|---|
| A105 | K03504 | Carbon Steel | 1.0460 / P245GH / C22.8 | SFVC2A | IS 2062 Gr. B | C ≤ 0.35%, Mn 0.60-1.05%, Si 0.10-0.35% | 425 | -29 | Standard forged CS for flanges, fittings, small bore valves. API 6D. |
| A182 F304 | S30400 | 304 Stainless Steel | 1.4301 / X5CrNi18-10 | SUS304 | IS 6911 Gr. 04Cr18Ni10 | C ≤ 0.08%, Cr 18-20%, Ni 8-10.5% | 870 | -196 | Forged 304 SS for fittings and small valves. |
| A182 F304L | S30403 | 304L Stainless Steel | 1.4306 / X2CrNi19-11 | SUS304L | IS 6911 Gr. 02Cr19Ni10 | C ≤ 0.03%, Cr 18-20%, Ni 8-12% | 455 | -196 | Low carbon: weld without sensitisation. Pharma, food, cryogenic. |
| A182 F316 | S31600 | 316 Stainless Steel | 1.4401 / X5CrNiMo17-12-2 | SUS316 | IS 6911 Gr. 04Cr17Ni12Mo2 | C ≤ 0.08%, Cr 16-18%, Ni 10-14%, Mo 2.0-3.0% | 870 | -196 | Most specified SS for valve trim and bodies where Mo is needed. |
| A182 F316L | S31603 | 316L Stainless Steel | 1.4404 / X2CrNiMo17-12-2 | SUS316L | IS 6911 Gr. 02Cr17Ni12Mo2 | C ≤ 0.03%, Cr 16-18%, Ni 10-14%, Mo 2.0-3.0% | 455 | -196 | Low carbon 316. Pharmaceutical (ASME BPE), food, breweries. |
| A182 F11 | K11597 | 1.25Cr-0.5Mo Alloy Steel | 1.7335 / 13CrMo4-5 | SFVAF11 | — | C 0.05-0.15%, Cr 1.00-1.50%, Mo 0.44-0.65% | 595 | -29 | High-temp steam up to 595°C. Class 600-1500 forged gate and globe valves. |
| A182 F22 | K21590 | 2.25Cr-1Mo Alloy Steel | 1.7380 / 10CrMo9-10 | SFVAF22 | — | C ≤ 0.15%, Cr 1.90-2.60%, Mo 0.87-1.13% | 650 | -29 | Hydrogen service (Nelson curves). Hydrocracking, hydrotreating valves. |
| A182 F347 | S34700 | 347 Stabilised Stainless Steel | 1.4550 / X6CrNiNb18-10 | SUS347 | — | C ≤ 0.08%, Cr 17-19%, Ni 9-13%, Nb+Ta ≥ 10×C | 870 | -196 | Nb-stabilised: no sensitisation. Nuclear, high-temp furnace applications. |
| A182 F51 (2205) | S31803 | Duplex 2205 | 1.4462 / X2CrNiMoN22-5-3 | SUS329J3L | — | Cr 21-23%, Ni 4.5-6.5%, Mo 2.5-3.5%, N 0.08-0.20% | 300 | -46 | Forged duplex for small bore instrumentation and high-pressure valves. |
| A182 F53 (2507) | S32750 | Super Duplex 2507 | 1.4410 / X2CrNiMoN25-7-4 | — | — | Cr 24-26%, Ni 6-8%, Mo 3.0-5.0%, N 0.24-0.32% | 300 | -196 | Subsea, offshore, high chloride. PREN ≥ 40. Needle and ball valve bodies. |
| A182 F60 (2205 alt) | S32205 | Duplex 2205 (revised UNS) | 1.4462 / X2CrNiMoN22-5-3 | SUS329J3L | — | Cr 22-23%, Ni 4.5-6.5%, Mo 3.0-3.5%, N 0.14-0.20% | 300 | -46 | Revised composition with higher N floor vs F51. Both meet EN 1.4462. |
| A350 LF2 | K03011 | Low-Temp Carbon Steel | 1.0562 / P275NL1 | SFVC2B | — | C ≤ 0.30%, Mn 0.60-1.35%, Si 0.15-0.30% | 345 | -46 | Charpy impact tested at -46°C. LNG, ethylene, propane service. |
Trim & Stem Materials
4 materials — scroll right on mobile
| ASTM Designation | UNS | Common Name | EN / DIN | JIS | IS (India) | Composition (key elements) | Max °C | Min °C | Notes / Applications |
|---|---|---|---|---|---|---|---|---|---|
| A276 Gr. 410 | S41000 | 410 Martensitic SS | 1.4006 / X10Cr13 | SUS410 | IS 6528 Gr. 10Cr13 | C ≤ 0.15%, Cr 11.5-13.5% | 650 | -29 | Standard trim for general service gate and globe valves (seat faces, stems). |
| A276 Gr. 316 | S31600 | 316 Stainless Steel Stem | 1.4401 / X5CrNiMo17-12-2 | SUS316 | IS 6911 316 | C ≤ 0.08%, Cr 16-18%, Ni 10-14%, Mo 2.0-3.0% | 870 | -196 | Standard stem material for SS body valves. Ball valve shafts. |
| A564 Gr. 630 (17-4PH) | S17400 | 17-4 PH Stainless Steel | 1.4542 / X5CrNiCuNb17-4 | SUS630 | — | Cr 15.5-17.5%, Ni 3-5%, Cu 3-5%, Nb 0.15-0.45% | 315 | -196 | High-strength stem for large gate valves, Class 1500-2500. Age-hardened. |
| Stellite Gr. 6 (hard-faced) | R30006 | Cobalt Alloy Hardfacing | 2.4778 / CoCrW type | — | — | Co bal., Cr 27-32%, W 3-6%, C 0.9-1.4% | 870 | -196 | Weld overlay on seat faces. Erosion, abrasion, cavitation resistance. |
Quick Material Selection Guide
General Service (Water, Oil, Gas)
- -Body: A216 WCB (cast) / A105 (forged)
- -Trim: A276 Gr. 410 SS
- -Temperature: -29°C to +425°C
- -Standard: API 600, API 6D
High-Temperature Steam
- -Body: A217 WC6 (to 595°C) / WC9 (to 650°C)
- -Forged: A182 F11 / F22
- -Trim: Stellite 6 hard-faced seats
- -Standard: ASME B16.34 Class 600-2500
Stainless / Corrosive Service
- -Body: A351 CF8M (cast) / A182 F316 (forged)
- -Trim: A276 Gr. 316 stems
- -Temperature: -196°C to +870°C
- -Standard: ASME B16.34, ISO 15156
Low Temperature / Cryogenic
- -Body: A352 LCC (to -46°C)
- -Body: A351 CF8M (to -196°C)
- -Trim: Austenitic SS throughout
- -Standard: BS 6364, ASME B16.34
Seawater / Offshore / Duplex
- -Body: A890 Gr. 4A (Duplex 2205)
- -Body: A890 Gr. 5A (Super Duplex 2507)
- -PREN: 35+ (2205) / 40+ (2507)
- -Standard: NORSOK M-630, ISO 15156
Severe Acid / Chemical Service
- -Body: A494 CX2MW (Hastelloy C-276)
- -Body: A351 CN7M (Alloy 20)
- -Trim: Hastelloy or PTFE-lined
- -Standard: NACE MR0175, API 607
Frequently Asked Questions
What is the equivalent of ASTM A216 WCB in EN/DIN?
ASTM A216 WCB (carbon steel cast body) is equivalent to EN/DIN material 1.0619 (GP240GH). Both are cast carbon steel grades for general pressure vessel and valve applications at temperatures up to 425°C (WCB) or 380°C (GP240GH). UNS number is J03002. JIS equivalent is SCPH2.
What is the EN equivalent of ASTM A351 CF8M stainless steel?
ASTM A351 CF8M (cast 316 stainless steel) is equivalent to EN/DIN 1.4408 (GX5CrNiMo19-11-2). JIS equivalent is SCS16A. Both are cast austenitic stainless steels with 18-21% Cr, 9-12% Ni, and 2-3% Mo. Used for corrosion-resistant valve bodies in chemical, pharmaceutical, and marine service.
What is the DIN equivalent of ASTM A105 forged carbon steel?
ASTM A105 (forged carbon steel for pressure fittings and valve components) is equivalent to DIN/EN 1.0460 (C22.8 / P245GH). JIS equivalent is SFVC2A. Indian standard equivalent is IS 2062 Grade B. Maximum service temperature is 425°C. Used for flanges, small bore valve bodies, and pressure fittings in general service.
What is the difference between A217 WC6 and WC9?
Both A217 WC6 and WC9 are cast alloy steel for high-temperature service but differ in chromium and molybdenum content. WC6 has 1-1.5% Cr and 0.45-0.65% Mo (EN 1.7362), rated to 595°C. WC9 has 2-2.75% Cr and 0.90-1.20% Mo (EN 1.7380), rated to 650°C. WC9 is used where higher creep resistance is needed, such as main steam stop valves and high-pressure turbine bypass valves. Both require post-weld heat treatment (PWHT) when welded.
What valve material is used for low-temperature cryogenic service?
For low-temperature and cryogenic service, common materials include: A352 LCB or LCC (cast carbon steel, impact-tested to -46°C), A350 LF2 (forged, -46°C), A351 CF8M / CF3M (austenitic 316/316L SS, suitable to -196°C), and A182 F304L or F316L for forged components. For LNG service at -162°C to -196°C, austenitic stainless steels (304/316 family) or 9% nickel steel are used. Ductile iron (A536) is NOT acceptable for cryogenic service.
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