Material equivalents — ASTM, EN, JIS, GB, IS and BS
Nearest international equivalents for 88 alloys used in flanges, fittings, pipe, castings, bolting and plate: ASTM / ASME and UNS against European EN and W.Nr, Japanese JIS, Chinese GB (current and old designations), Indian IS and withdrawn British BS grades. Equivalents are close, not identical — compare chemistry and properties before substituting.
Carbon steel
Overview| ASTM / ASME grades | W.Nr | EN | JIS | China GB / NB | GB old | India IS | UK BS (old) |
|---|---|---|---|---|---|---|---|
| A105 | 1.0460 | P250GH | SFVC2A (JIS G3202) | 20 / 16Mn (NB/T 47008) | 20 | IS 2004 Class 3A | BS 1503-221-490 |
| A106 Gr.B, A53 Gr.B (seamless) | 1.0345 | P235GH (EN 10216-2) | STPG370 (JIS G3454) / STPT370 (JIS G3456) | 20 (GB/T 8163, GB/T 5310 20G) | 20 | IS 1978 / IS 3589 | BS 3602 HFS 360 |
| A234 WPB | 1.0345 / 1.0425 | P235GH / P265GH (EN 10253-2) | PG370 (JIS B2311) / PT370 (JIS B2312) | 20 (GB/T 12459) | 20 | — | BS 1640 |
| API 5L Gr.B PSL1 | — | L245 (ISO 3183 / EN 10208-2) | STPG370 | L245 (GB/T 9711) | — | IS 3589 | — |
| A216 WCB | 1.0619 | GP240GH (EN 10213) | SCPH2 (JIS G5151) | WCB (GB/T 12229) / ZG240-450 | ZG25 | IS 1030 Gr 280-520 | BS 1504-161-480 |
| A106 Grade C | 1.0425 | P265GH (EN 10216-2) | STPT410 (JIS G3456) | 20MnG / 25MnG (GB/T 5310) | 20G | — | BS 3602 HFS 410 |
Low-temperature carbon steel (LTCS)
Overview| ASTM / ASME grades | W.Nr | EN | JIS | China GB / NB | GB old | India IS | UK BS (old) |
|---|---|---|---|---|---|---|---|
| A350 LF2 Cl.1 | 1.0478 / 1.0566 | P285QH / P355NL1 | SFL2 (JIS G3205) | 16MnD (NB/T 47009) | 16MnD | — | BS 1503-224-490 LT50 |
| A420 WPL6 | 1.0453 | P265NL (EN 10253-2) | PL380 (JIS B2311) | 16MnDG / 16MnD | — | — | — |
| A350 LF3 Cl.1 | 1.5637 | 12Ni14 | SFL3 (JIS G3205) | 08Ni3D (NB/T 47009) | — | — | BS 1503-503-490 |
| A333 Grade 6 | 1.0453 | P265NL (EN 10216-4) | STPL380 (JIS G3460) | 16MnDG (GB/T 18984) | 16MnDG | — | BS 3603 HFS 430 LT |
| A420 WPL3, A333 Grade 3 | 1.5637 | 12Ni14 (EN 10216-4) | STPL450 (JIS G3460) | 06Ni3MoDG (GB/T 18984) | — | — | BS 3603 503 LT100 |
| A352 LCB | 1.1131 | G17Mn5 (EN 10213) | SCPL1 (JIS G5152) | LCB (GB/T 12229) / ZG240-450D | — | — | BS 1504-161 LT |
| A352 LCC | 1.6220 | G20Mn5 (EN 10213) | — | LCC (GB/T 12229) | — | — | — |
High-yield carbon steel
Overview| ASTM / ASME grades | W.Nr | EN | JIS | China GB / NB | GB old | India IS | UK BS (old) |
|---|---|---|---|---|---|---|---|
| A694 F52, A694 F60, A694 F65, A694 F70 | — | — | — | — | — | — | — |
| API 5L X52 PSL2 | 1.0582 (L360NB) | L360 (ISO 3183) | — | L360 (GB/T 9711) | X52 | — | — |
| API 5L X60 PSL2 | 1.8973 (L415MB) | L415 (ISO 3183) | — | L415 (GB/T 9711) | X60 | — | — |
| API 5L X65 PSL2 | 1.8975 (L450MB) | L450 (ISO 3183) | — | L450 (GB/T 9711) | X65 | — | — |
Chrome-moly alloy steel
Overview| ASTM / ASME grades | W.Nr | EN | JIS | China GB / NB | GB old | India IS | UK BS (old) |
|---|---|---|---|---|---|---|---|
| A182 F11 Cl.2, A234 WP11 Cl.1, A335 P11, A182 F11 Cl.1, A182 F11 Cl.3, A234 WP11 Cl.2, A234 WP11 Cl.3 | 1.7335 | 13CrMo4-5 | STPA23 / SFVAF11A | 15CrMoG (GB/T 5310) / 14Cr1MoR (GB/T 713.2) | 15CrMo | — | BS 3604 621 |
| A182 F22 Cl.3, A234 WP22 Cl.1, A335 P22, A182 F22 Cl.1, A234 WP22 Cl.3 | 1.7380 | 10CrMo9-10 | STPA24 / SFVAF22B | 12Cr2MoG (GB/T 5310) | 12Cr2Mo1 | — | BS 3604 622 |
| A182 F91, A335 P91, A234 WP91 Type 1 | 1.4903 | X10CrMoVNb9-1 | STPA28 (JIS G3458) / SFVAF28 (JIS G3203) | 10Cr9Mo1VNbN (GB/T 5310) | — | — | — |
| A182 F5, A234 WP5 Cl.1, A335 P5, A182 F5a | 1.7362 | X11CrMo5 (EN 10216-2) | STPA25 / SFVAF5B | 12Cr5MoI (GB/T 9948) / 1Cr5Mo | 1Cr5Mo | — | BS 3604 625 |
| A182 F9, A234 WP9 Cl.1, A335 P9 | 1.7386 | X11CrMo9-1 (EN 10216-2) | STPA26 / SFVAF9 | 12Cr9MoI (GB/T 9948) / 1Cr9Mo1 | 1Cr9Mo1 | — | BS 3604 629 |
| A182 F12 Cl.2, A335 P12, A182 F12 Cl.1, A234 WP12 Cl.1 | 1.7335 | 13CrMo4-5 | STPA22 / SFVAF12 | 15CrMoG (GB/T 5310) / 15CrMoR (GB/T 713.2) | 15CrMo | — | BS 3604 620-460 |
| A217 WC6 | 1.7357 | G17CrMo5-5 (EN 10213) | SCPH21 (JIS G5151) | WC6 (GB/T 12229) / ZG15Cr1Mo | ZG20CrMo | — | BS 1504-621 |
| A217 WC9 | 1.7379 | G17CrMo9-10 (EN 10213) | SCPH32 (JIS G5151) | WC9 (GB/T 12229) / ZG12Cr2Mo1 | — | — | BS 1504-622 |
| A182 F1, A335 P1, A234 WP1 | 1.5415 | 16Mo3 | STPA12 / SFVAF1 | 15MoG / 20MoG (GB/T 5310) | 16Mo | — | BS 3059-2 243 |
| A182 F2, A335 P2 | — | — | STPA20 / SFVAF2 | 12CrMo (GB/T 5310 12CrMoG) | 12CrMo | — | — |
| A182 F21, A335 P21 | — | — | SFVAF21A | — | — | — | — |
| A182 F92, A335 P92, A234 WP92 | 1.4901 | X10CrWMoVNb9-2 | STPA29 (JIS G3458) | 10Cr9MoW2VNbBN (GB/T 5310) | — | — | — |
| A335 P23 | 1.8201 | 7CrWVMoNb9-6 | STBA24J1 | 07Cr2MoW2VNbB (GB/T 5310) | — | — | — |
| A217 WC1 | 1.5419 | G20Mo5 (EN 10213) | SCPH11 (JIS G5151) | WC1 (GB/T 12229) / ZG20Mo | — | — | BS 1504-245 |
| A217 C5 | 1.7365 | GX15CrMo5 (EN 10213) | SCPH61 (JIS G5151) | C5 (GB/T 12229) / ZG16Cr5Mo | ZG1Cr5Mo | — | BS 1504-625 |
| A217 C12 | — | — | — | C12 (GB/T 12229) | — | — | BS 1504-629 |
| A217 C12A | 1.4955 | GX12CrMoVNbN9-1 (EN 10213) | — | C12A / ZG10Cr9Mo1VNbN | — | — | — |
| A387 Grade 11 Cl.2 | 1.7335 | 13CrMo4-5 (EN 10028-2) | SCMV3 (JIS G4109) | 14Cr1MoR (GB/T 713.2) | 15CrMoR | — | BS 1501-621 |
| A387 Grade 22 Cl.2 | 1.7380 | 10CrMo9-10 (EN 10028-2) | SCMV4 (JIS G4109) | 12Cr2Mo1R (GB/T 713.2) | 12Cr2Mo1R | — | BS 1501-622 |
| A387 Grade 91 Cl.2 | 1.4903 | X10CrMoVNb9-1 (EN 10028-2) | SCMV28 (JIS G4109) | — | — | — | — |
Austenitic stainless steel
Overview| ASTM / ASME grades | W.Nr | EN | JIS | China GB / NB | GB old | India IS | UK BS (old) |
|---|---|---|---|---|---|---|---|
| A182 F304, A312 TP304, A403 WP304, A193 B8 Cl.1, A194 8 | 1.4301 | X5CrNi18-10 | SUS304 / SUSF304 | S30408 (06Cr19Ni10) | 0Cr18Ni9 | X04Cr19Ni9 (IS 6911) | 304S31 |
| A182 F304L, A312 TP304L, A403 WP304L | 1.4307 / 1.4306 | X2CrNi18-9 / X2CrNi19-11 | SUS304L / SUSF304L | S30403 (022Cr19Ni10) | 00Cr19Ni10 | X02Cr19Ni10 (IS 6911) | 304S11 |
| A182 F316, A312 TP316, A403 WP316, A193 B8M Cl.1, A194 8M | 1.4401 | X5CrNiMo17-12-2 | SUS316 / SUSF316 | S31608 (06Cr17Ni12Mo2) | 0Cr17Ni12Mo2 | X04Cr17Ni12Mo2 (IS 6911) | 316S31 |
| A182 F316L, A312 TP316L, A403 WP316L | 1.4404 | X2CrNiMo17-12-2 | SUS316L / SUSF316L | S31603 (022Cr17Ni12Mo2) | 00Cr17Ni14Mo2 | X02Cr17Ni12Mo2 (IS 6911) | 316S11 |
| A182 F321, A312 TP321, A403 WP321 | 1.4541 | X6CrNiTi18-10 | SUS321 / SUSF321 | S32168 (06Cr18Ni11Ti) | 0Cr18Ni10Ti | X04Cr18Ni10Ti (IS 6911) | 321S31 |
| A351 CF8M | 1.4408 | GX5CrNiMo19-11-2 (EN 10213) | SCS14A (JIS G5121) | CF8M / ZG08Cr18Ni12Mo2 (GB/T 12230) | ZG0Cr18Ni12Mo2Ti | — | BS 3100 316C16 |
| A182 F304H, A312 TP304H | 1.4948 | X6CrNi18-10 | SUS304HTB / SUSF304H | S30409 (07Cr19Ni10) | 1Cr18Ni9 | — | 304S51 |
| A182 F316H, A312 TP316H | 1.4919 | X6CrNiMo17-13-2 | SUS316HTB / SUSF316H | S31609 (07Cr17Ni12Mo2) | 1Cr17Ni12Mo2 | — | 316S51 |
| A182 F316Ti | 1.4571 | X6CrNiMoTi17-12-2 | SUS316Ti | S31668 (06Cr17Ni12Mo2Ti) | 0Cr18Ni12Mo3Ti | X04Cr17Ni12Mo2Ti (IS 6911) | 320S31 |
| A182 F317L, A312 TP317L, A403 WP317L | 1.4438 | X2CrNiMo18-15-4 | SUS317L | S31703 (022Cr19Ni13Mo3) | 00Cr19Ni13Mo3 | — | 317S12 |
| A182 F310, A312 TP310S, A403 WP310S | 1.4845 | X8CrNi25-21 | SUS310S | S31008 (06Cr25Ni20) | 0Cr25Ni20 | X04Cr25Ni20 (IS 6911) | 310S16 |
| A182 F321H | 1.4878 | X8CrNiTi18-10 | SUS321HTB / SUSF321H | S32169 (07Cr19Ni11Ti) | 1Cr18Ni11Ti | — | 321S51 |
| A182 F347, A312 TP347, A403 WP347 | 1.4550 | X6CrNiNb18-10 | SUS347 / SUSF347 | S34778 (06Cr18Ni11Nb) | 0Cr18Ni11Nb | X04Cr18Ni10Nb (IS 6911) | 347S31 |
| A182 F347H | 1.4912 | X7CrNiNb18-10 | SUS347HTB / SUSF347H | S34779 (07Cr18Ni11Nb) | 1Cr19Ni11Nb | — | 347S51 |
| A351 CF8 | 1.4308 | GX5CrNi19-10 (EN 10213) | SCS13A (JIS G5121) | CF8 / ZG08Cr18Ni9 (GB/T 12230) | ZG0Cr18Ni9 | — | BS 3100 304C15 |
| A351 CF3M | 1.4409 | GX2CrNiMo19-11-2 (EN 10213) | SCS16A (JIS G5121) | CF3M / ZG03Cr18Ni12Mo2 (GB/T 12230) | ZG00Cr17Ni14Mo2 | — | BS 3100 316C12 |
Super austenitic stainless steel
Overview| ASTM / ASME grades | W.Nr | EN | JIS | China GB / NB | GB old | India IS | UK BS (old) |
|---|---|---|---|---|---|---|---|
| UNS N08904 (904L) | 1.4539 | X1NiCrMoCu25-20-5 | SUS890L | S39042 (015Cr21Ni26Mo5Cu2) | 00Cr20Ni25Mo4.5Cu | — | 904S13 |
| A182 F44 (254 SMO) | 1.4547 | X1CrNiMoCuN20-18-7 | SUS312L | S31252 (015Cr20Ni18Mo6CuN) | — | — | — |
| A182 F62 (Alloy 6XN) | ≈ 1.4529 | ≈ X1NiCrMoCuN25-20-7 | — | — | — | — | — |
| B462 Alloy 20 (UNS N08020) | 2.4660 | NiCr20CuMo | — | NS1403 (GB/T 15007) | 0Cr20Ni32Mo3Cu4Nb | — | — |
Duplex stainless steel
Overview| ASTM / ASME grades | W.Nr | EN | JIS | China GB / NB | GB old | India IS | UK BS (old) |
|---|---|---|---|---|---|---|---|
| A182 F51, A182 F60 (Duplex 2205), A815 WPS31803, A815 WPS32205, A790 UNS S31803, A790 UNS S32205 | 1.4462 | X2CrNiMoN22-5-3 | SUS329J3L | S22253 / S22053 (022Cr22Ni5Mo3N / 022Cr23Ni5Mo3N) | 00Cr22Ni5Mo3N | — | 318S13 |
| A995 Grade 4A (CD3MN) | 1.4470 | GX2CrNiMoN22-5-3 (EN 10213) | SCS10 (approx.) | ZG03Cr22Ni6Mo3N | — | — | — |
Super duplex stainless steel
Overview| ASTM / ASME grades | W.Nr | EN | JIS | China GB / NB | GB old | India IS | UK BS (old) |
|---|---|---|---|---|---|---|---|
| A182 F61 (Alloy 255) | 1.4507 | X2CrNiMoCuN25-6-3 | — | S25554 (03Cr25Ni6Mo3Cu2N) | — | — | — |
| A182 F53 (Super Duplex 2507), A815 WPS32750, A790 UNS S32750 | 1.4410 | X2CrNiMoN25-7-4 | SUS327L1 | S25073 (022Cr25Ni7Mo4N) | 00Cr25Ni7Mo4N | — | — |
| A182 F55 (Super Duplex S32760), A815 WPS32760, A790 UNS S32760 | 1.4501 | X2CrNiMoCuWN25-7-4 | — | S27603 (022Cr25Ni7Mo4WCuN) | — | — | — |
| A995 Grade 5A (CE3MN) | 1.4469 | GX2CrNiMoN26-7-4 (EN 10213) | — | ZG03Cr26Ni7Mo4N | — | — | — |
| A995 Grade 6A (CD3MWCuN) | 1.4517 | GX2CrNiMoCuN25-6-3-3 (approx.) | — | — | — | — | — |
Nickel alloys
Overview| ASTM / ASME grades | W.Nr | EN | JIS | China GB / NB | GB old | India IS | UK BS (old) |
|---|---|---|---|---|---|---|---|
| Alloy 625 (UNS N06625) | 2.4856 | NiCr22Mo9Nb | NCF625 | NS3306 (GB/T 15007) / GH3625 | 0Cr20Ni65Mo10Nb4 | — | NA21 |
| Alloy 600 (UNS N06600) | 2.4816 | NiCr15Fe | NCF600 | NS3102 (GB/T 15007) | 0Cr15Ni75Fe | — | NA14 |
| Alloy 825 (UNS N08825) | 2.4858 | NiCr21Mo | NCF825 | NS1402 (GB/T 15007) | 0Cr21Ni42Mo3Cu2Ti | — | NA16 |
| Alloy 800 / 800H / 800HT | 1.4876 / 1.4958 / 1.4959 | X10NiCrAlTi32-21 / X5NiCrAlTi31-20 | NCF800 / NCF800H | NS1101 / NS1102 (GB/T 15007) | 0Cr20Ni32AlTi | — | NA15 / NA15H |
| Alloy C-276 (UNS N10276) | 2.4819 | NiMo16Cr15W | NW0276 | NS3304 (GB/T 15007) | 00Cr16Ni60Mo16W4 | — | — |
| Alloy C-22 (UNS N06022) | 2.4602 | NiCr21Mo14W | NW6022 | NS3308 (GB/T 15007) | — | — | — |
| Alloy 400 (UNS N04400) | 2.4360 | NiCu30Fe | NW4400 | NCu30 (GB/T 5235) | NCu28-2.5-1.5 | — | NA13 |
| Nickel 200 / 201 (UNS N02200 / N02201) | 2.4066 / 2.4068 | Ni99.2 / LC-Ni99 | NW2200 / NW2201 | N6 / N5 (GB/T 5235) | N6 | — | NA11 / NA12 |
Titanium
Overview| ASTM / ASME grades | W.Nr | EN | JIS | China GB / NB | GB old | India IS | UK BS (old) |
|---|---|---|---|---|---|---|---|
| Titanium Grade 2 (UNS R50400) | 3.7035 | Ti Grade 2 | TTP340 / Class 2 (JIS H4630) | TA2 (GB/T 3624) | TA2 | — | BS 2TA |
| Titanium Grade 5 (Ti-6Al-4V) | 3.7165 | TiAl6V4 | TAP6400 (JIS H4600) / TAB6400 (JIS H4650) | TC4 (GB/T 3620.1) | TC4 | — | BS TA10–13 |
| Titanium Grade 7 (UNS R52400) | 3.7235 | Ti Grade 7 (Ti-0.15Pd) | TTP340Pd / Class 12 (JIS H4630) | TA9 (GB/T 3624) | TA9 | — | — |
| Titanium Grade 12 (UNS R53400) | 3.7105 | Ti Grade 12 | — | TA10 (GB/T 3624) | TA10 | — | — |
Copper-nickel (Cu-Ni)
Overview| ASTM / ASME grades | W.Nr | EN | JIS | China GB / NB | GB old | India IS | UK BS (old) |
|---|---|---|---|---|---|---|---|
| Copper-Nickel 90/10 (UNS C70600) | CW352H (2.0872) | CuNi10Fe1Mn (EN 12449) | C7060 (JIS H3300) | BFe10-1-1 (GB/T 8890) | BFe10-1-1 | — | CN102 |
| Copper-Nickel 70/30 (UNS C71500) | CW354H (2.0882) | CuNi30Mn1Fe (EN 12449) | C7150 (JIS H3300) | BFe30-1-1 (GB/T 8890) | BFe30-1-1 | — | CN107 |
Bolting & nut grades
Overview| ASTM / ASME grades | W.Nr | EN | JIS | China GB / NB | GB old | India IS | UK BS (old) |
|---|---|---|---|---|---|---|---|
| A193 B7, A193 B7M, A320 L7, A320 L7M, A194 Grade 7 | 1.7225 | 42CrMo4 | SCM440 / SNB7 (JIS G4107) | 42CrMo (GB/T 3077) | 42CrMo | 42Cr4Mo2 (IS 1570) | BS 970 708M40 |
| A193 B16 | 1.7711 | 40CrMoV4-6 | SNB16 (JIS G4107) | 25Cr2MoV / 35CrMoV (GB/T 3077) | 25Cr2MoVA | — | BS 1506-631 |
| A182 F304, A312 TP304, A403 WP304, A193 B8 Cl.1, A194 8 | 1.4301 | X5CrNi18-10 | SUS304 / SUSF304 | S30408 (06Cr19Ni10) | 0Cr18Ni9 | X04Cr19Ni9 (IS 6911) | 304S31 |
| A182 F316, A312 TP316, A403 WP316, A193 B8M Cl.1, A194 8M | 1.4401 | X5CrNiMo17-12-2 | SUS316 / SUSF316 | S31608 (06Cr17Ni12Mo2) | 0Cr17Ni12Mo2 | X04Cr17Ni12Mo2 (IS 6911) | 316S31 |
| A194 2H, A194 2HM | 1.0503 | C45 | S45C | 45 (GB/T 699) | 45 | 45C8 (IS 1570-2) | BS 970 080M46 |
| A320 L43 | 1.6582 | 34CrNiMo6 | SNCM439 | 40CrNiMoA (GB/T 3077) | 40CrNiMoA | 40Ni2Cr1Mo28 (IS 1570) | BS 970 817M40 |
| A453 Grade 660 Cl.A | 1.4980 | X6NiCrTiMoVB25-15-2 | SUH660 | GH2132 (GB/T 14992) | 0Cr15Ni25Ti2MoAlVB | — | — |
Structural & plate steel
Overview| ASTM / ASME grades | W.Nr | EN | JIS | China GB / NB | GB old | India IS | UK BS (old) |
|---|---|---|---|---|---|---|---|
| A36 | 1.0038 / 1.0044 | S235JR / S275JR (EN 10025-2) | SS400 (JIS G3101) | Q235B (GB/T 700) | A3 | IS 2062 E250 | BS 4360 43A |
| A516 Gr.70 | 1.0473 | P355GH (EN 10028-2) | SGV480 / SPV355 (JIS G3118 / G3115) | Q345R (GB/T 713.2) | 16MnR | IS 2002 Gr 2B | BS 1501-224-490 |
| IS 2062 E250 BR | 1.0044 | S275JR (EN 10025-2) | SS400 | Q235B (GB/T 700) | A3 | IS 2062 E250 | BS 4360 43B |
| IS 2062 E350 BR | 1.0045 | S355JR (EN 10025-2) | SM490A / SS490 | Q355B (GB/T 1591) | Q345B / 16Mn | IS 2062 E350 | BS 4360 50B |
| A516 Grade 60 | 1.0425 | P265GH (EN 10028-2) | SGV410 (JIS G3118) | Q245R (GB/T 713.2) | 20R | IS 2002 Gr 1 | BS 1501-161-430 |
Reference information compiled from the published standard for convenience. It does not replace the current edition of the governing standard, which takes precedence. Verify critical dimensions and properties before design, purchase or fabrication. Teshi Engineers & Sales Promoters (P) Ltd accepts no liability for errors or omissions.
FAQ
Material equivalents: common questions
What is the Chinese equivalent of 316L stainless steel?
S31603 (022Cr17Ni12Mo2) to GB/T 20878; the old designation was 00Cr17Ni14Mo2.
What is the EN equivalent of ASTM A105?
P250GH (W.Nr 1.0460) to EN 10222-2 is the nearest European equivalent.
What is the JIS equivalent of P91?
STPA28 to JIS G3458 for pipe; SFVAF28 to JIS G3203 for forgings.
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