Toolbox / Material equivalents
Steel & Alloy Grade Equivalents: ASTM, UNS, EN, JIS, IS, GB
Type a grade the way your buyer or your mill writes it. We find the grade family, list the equivalent designations in each standard, and show how closely the chemistry matches.
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Grades covered
Austenitic stainless
Ferritic / martensitic stainless
Duplex stainless
Carbon / C-Mn steel
Cr-Mo alloy steel
Bolting
Nickel alloys
Sources
Designations and composition limits are taken from the linked mill, maker and cross-reference pages below, each fetched and checked in October 2026. Gaps remain: † marks a value confirmed in one source only, “Not rated” means the designation is confirmed but its limits are not, and IS 6911 names are the pre-2026 designations (the 2026 revision renamed them and the new names are not yet sourced).
- Special Metals: MONEL alloy 400 technical bulletin
- Special Metals: INCONEL alloy 600 technical bulletin
- Special Metals: INCONEL alloy 625 technical bulletin
- Special Metals: INCOLOY alloy 825 technical bulletin
- VDM Metals: VDM Alloy 400 data sheet
- VDM Metals: VDM Alloy 600 / 600 H Datenblatt
- VDM Metals: VDM Alloy 625 data sheet
- VDM Metals: VDM Alloy 825 data sheet
- VDM Metals: VDM Alloy C-276 data sheet
- Haynes International: HASTELLOY C-276 alloy datasheet
- Nippon Yakin: NAS NW400 (NW4400, UNS N04400) datasheet
- Nippon Yakin: NAS 600 (NCF600, UNS N06600) datasheet
- Nippon Yakin: NAS 625 (NCF625, UNS N06625) datasheet
- Nippon Yakin: NAS 825 (NCF825, UNS N08825) datasheet
- Nippon Yakin: NAS NW276 (NW0276, UNS N10276) datasheet
- ATI: ATI 625 alloy product page
- Wermac: chemical composition of ASTM A53, A105, A106, A216, A234
- Wermac: ASTM A105 forgings
- Wermac: ASTM A350 flanges (LF2)
- Hardhat Engineer: ASTM A105 forge material specification
- Project Materials: what is an A105 flange
- Project Materials: what is ASTM A106 Grade B
- Project Materials: what is ASTM A216 WCB
- Project Materials: what is ASTM A234
- Project Materials: what is ASTM A333 Grade 6
- What Is Piping: ASTM A333 Gr 6
- Octal Steel: ASTM A106 Grade B pipe
- TubingChina: API 5L PSL1 chemical composition
- Alloy Piping Products: ASTM A234 fittings summary data sheet
- Rolf Inc.: Material Comparison Table (A105 row K03504; A106 Grade B row K03006, St 45.8, DIN 17175, 1.0405)
- South Coast Industrial Metals: A105 CS (K03504)
- SteelStandart: A36 equivalents (GB Q235B listed as "Near": yield 235 vs 250 MPa, Q235B has an impact requirement)
- TestCert: GB/T 700 (Q235B; A36 and IS 2062 E250A listed as approximate counterparts)
- TubingChina: carbon steel pipe standards, ASTM / BS / DIN / Sweden (ASTM A 106 block: Grade B, DIN St 45-8)
- Alloy Piping Products: UNS spec sheet
- West Yorkshire Steel: A350 LF2
- ICAST Alloys: ASTM A216 WCB material sheet
- ICAST Alloys: JIS SCPH 2 material sheet
- Gravity Cast (ICAST database): IS 1030 Grade 280-520W
- Gravity Cast (ICAST database): IS 2062 E 350
- A&A Steel: SA-516
- A&A Steel: A36
- EPCLand: ASTM A516 steel grades and properties
- Nandini Steel: SA 516 Gr 70 boiler quality plates
- Baco Enterprises: ASTM A572 specification
- Wikipedia: A572 steel
- Wikipedia: A36 steel
- Arvedi: steels for pressure vessels to EN 10028-2
- Salzgitter Flachstahl: heat-resistant pressure-vessel steels
- H2ABC: P250GH (EN 10222-2:2017)
- H2ABC: Q345R (GB/T 713)
- Applus+ Laboratories materials portal: P250GH 1.0460
- Boden: P250GH / C22.8 / A105 boiler steel
- Livallco: P250GH / C22.8
- Steels-Supplier: EN 10025-2 specification
- Ulamex: structural steel S235JR, S275JR, S355J2
- Roymech: EN 10213 steel castings for pressure purposes
- Sekidou Kouhan: SFVC2A (JIS G3202)
- Sekidou Kouhan: SS400 (JIS G3101)
- Sekidou Kouhan: SM490A (JIS G3106)
- Sekidou Kouhan: STPT410 (JIS G3456)
- Sekidou Kouhan: STPL380 (JIS G3460)
- Sekidou Kouhan: SCPH2 (JIS G5151)
- SteelJIS (SteelNumber): SFVC2A datasheet
- SV Steel Pipe: JIS G3456
- Botop Steel Pipes: JIS G 3456
- Botop Steel Pipes: JIS G 3460 STPL380
- BT Steel Pipe: JIS G3460 steel tubes for low temperature
- Katalor: SA516 Gr 70 versus Q345R
- AHL Steel: GB Q345R boiler steel plate
- Sebon Casting: ZG200-400 to ZG310-570 cast carbon steel
- EB Castworld: ZG230-450 chemical composition
- China Royal Steel: GB Q355B
- HB Steel: 20 steel (GB)
- Infralens: IS 2062:2011
- SteelNumber: P250GH (1.0460)
- SteelNumber: P355GH (1.0473)
- SteelNumber: P265NL (1.0453)
- SteelNumber: S275JR (1.0044)
- SteelNumber: S355J2 (1.0577)
- SteelNumber: 1.0570 (St 52-3)
- SteelNumber: GP240GH (1.0619)
- TorqBolt: ASTM A193 / A193M bolting (chemistry and mechanical tables)
- TorqBolt: ASTM A320 / A320M bolting (chemistry and mechanical tables)
- TorqBolt: ASTM A194 / A194M nuts (chemistry and hardness tables)
- Wermac: ASTM A193 B7 versus A320 L7 stud bolts
- Wermac: ASTM A193 B7 versus B7M stud bolts
- Project Materials: what is ASTM A193 B7
- Project Materials: A335 P11 vs P22 vs P91
- Baco Enterprises: ASTM A194 specification
- TA Chart: A194 Grade 4
- Botop Steel Pipes: ASTM A335 P11
- Botop Steel Pipes: ASTM A335 P22
- Botop Steel Pipes: ASTM A335 P91
- Botop Steel Pipes: EN 10216-2 X10CrMoVNb9-1
- Botop Steel Pipes: EN 10216-2 10CrMo9-10
- Botop Steel Pipes: JIS G 3458 (STPA)
- Steels-Supplier: JIS G3458 alloy steel pipe
- Steel Pro Group: P91 guideline (Type 1 and Type 2)
- Piping Pipeline: ASTM A182 F11 flanges
- Ramesh Group: ASTM A182 F11 flanges
- Ramesh Group: ASTM A182 F22 flanges
- LFP: 13CrMo4-5 to EN 10216-2
- H2ABC: 1.7335 13CrMo4-5 (EN 10216-2)
- H2ABC: 42CrMo (GB/T 3077-2015)
- H2ABC: 06Cr19Ni10 S30408 (GB/T 20878)
- Caishuku (H2ABC database): 06Cr17Ni12Mo2
- SteelStandart: 4130
- SteelStandart: 4140
- Yige Steel: 4130 steel equivalent
- Yige Steel: EN19 steel equivalent
- Laxcon Steels: steel grades explained
- Techno CNC: steel grade equivalents brochure (IS 1570)
- Sekidou Kouhan: SCM430 (JIS G4053)
- Sekidou Kouhan: SCM440 (JIS G4053)
- Sekidou Kouhan: SUS304
- Sekidou Kouhan: SUS316
- SteelJIS (SteelNumber): SCM430 datasheet
- Double Steel: JIS G4053 SCM440
- SupplierGo: GB/T 5310 boiler tube listing (10Cr9Mo1VNbN)
- Saky Steel: 10Cr9Mo1VNbN seamless steel tubes
- SteelNumber: 13CrMo4-5 (1.7335)
- SteelNumber: 10CrMo9-10 (1.7380)
- SteelNumber: X10CrMoVNb9-1 (1.4903)
- SteelNumber: 25CrMo4 (1.7218)
- SteelNumber: 42CrMo4 (1.7225)
- SteelNumber: X5CrNi18-10 (1.4301)
- SteelNumber: X5CrNiMo17-12-2 (1.4401)
- NKS: 409 stainless steel datasheet (A240 subgrades)
- Combined Metals: 409 stainless alloy data sheet
- Combined Metals: CM 410 data sheet
- Penn Stainless: 410 stainless steel
- Penn Stainless: 430 stainless steel
- Penn Stainless: duplex 2205 stainless steel
- ATI: ATI 410 product page
- ATI: ATI 420 product page
- ATI: ATI 430 product page
- ATI: ATI 2205 product page
- Rolled Alloys: 420 datasheet
- Outokumpu: Forta duplex datasheet (EN and ASTM mechanical tables)
- Sandmeyer Steel: 2507 spec sheet
- Nippon Yakin: NAS 329J3L (SUS329J3L, S32205 / S31803) datasheet
- Nose: JIS stainless chemical composition reference table
- TA Chart: UNS S32750
- TA Chart: UNS S31803
- Smith Metal: UNS S31803 / 1.4462 datasheet
- Smith Metal: UNS S32750 / 1.4410 datasheet
- Righton Blackburns: stainless 1.4006 / 410 bar datasheet
- Righton Blackburns: stainless 1.4021 / 420 bar datasheet
- Righton Blackburns: stainless 1.4016 / 430 sheet and plate datasheet
- TubingChina: martensitic stainless steel grades (GB / ASTM / UNS / EN table)
- SteelNumber: X2CrTi12 (1.4512)
- SteelNumber: X12Cr13 (1.4006)
- SteelNumber: X20Cr13 (1.4021)
- SteelNumber: X6Cr17 (1.4016)
- SteelNumber: X2CrNiMoN22-5-3 (1.4462)
- SteelNumber: X2CrNiMoN25-7-4 (1.4410)
- Project Materials: what is ASTM A312 (TP grade chemistry table)
- BIS circular on the revision of IS 6911 (2026)
- Jacquet: 304 / 304L technical sheet (current A240)
- NKS: 304 / 304L stainless steel datasheet
- NKS: 316 / 316L stainless steel coil
- NKS: 321 stainless steel coil
- NKS: 310 / 310S stainless steel coil
- GS Alloy: ASTM A240 plate and sheet chemistry table (earlier edition)
- Rolled Alloys: 317L stainless data sheet
- Rolled Alloys: 347 stainless data sheet
- Jindal Stainless: austenitic stainless steel grades (317L, 310S, 904L)
- Yieh: stainless steel plate (JIS chemistry table)
- BHEL tender specification AA10739 (cites IS 6911 X04Cr19Ni9)
- Norac: technical data (Indian stainless designations)
- zknives: GB 06Cr17Ni12Mo2 cross-reference
- Metinvest: 08Kh18N10T steel grade
- Matthey: 1.4404 / 316L technical sheet
- Aalco: 1.4301 (304) sheet and plate datasheet
- Aalco: 1.4307 (304L) sheet and plate datasheet
- Aalco: 1.4401 (316) sheet and plate datasheet
- Aalco: 1.4404 (316L) sheet and plate datasheet
- Aalco: 1.4948 (304H) bar datasheet
- Aalco: S34700 sheet datasheet
- ICAST Alloys: ASTM A240 UNS S30409
- ICAST Alloys: ASTM A240 UNS S31600
- ICAST Alloys: ASTM A240 UNS S31603
- ICAST Alloys: ASTM A240 UNS S31635
- ICAST Alloys: ASTM A240 UNS S32100
- ICAST Alloys: ASTM A240 UNS S34700
- ICAST Alloys: ASTM A240 UNS N08904
- ICAST Alloys: EN 1.4539
- ICAST Alloys: JIS SUS 890L
- H2ABC: 022Cr19Ni10 (GB/T 20878)
- H2ABC: 07Cr19Ni10 (GB/T 20878)
- H2ABC: 06Cr17Ni12Mo2 (GB/T 20878)
- H2ABC: 022Cr17Ni12Mo2 (GB/T 20878)
- H2ABC: 06Cr17Ni12Mo2Ti (GB/T 20878)
- H2ABC: 022Cr19Ni13Mo3 (GB/T 20878)
- H2ABC: 06Cr18Ni11Ti (GB/T 20878)
- H2ABC: 06Cr18Ni11Nb (GB/T 20878)
- H2ABC: 06Cr25Ni20 (GB/T 20878)
- H2ABC: 015Cr21Ni26Mo5Cu2 (GB/T 20878)
- SteelNumber: X2CrNi18-9 (1.4307)
- SteelNumber: X2CrNi19-11 (1.4306)
- SteelNumber: X6CrNi18-10 (1.4948)
- SteelNumber: X2CrNiMo17-12-2 (1.4404)
- SteelNumber: X2CrNiMo17-12-3 (1.4432)
- SteelNumber: X6CrNiMoTi17-12-2 (1.4571)
- SteelNumber: X2CrNiMo18-15-4 (1.4438)
- SteelNumber: X6CrNiTi18-10 (1.4541)
- SteelNumber: X6CrNiNb18-10 (1.4550)
- SteelNumber: X8CrNi25-21 (1.4845)
- SteelNumber: X1NiCrMoCu25-20-5 (1.4539)
Equivalents are for sourcing guidance only. Verify against the governing specification and the mill test certificate (MTC) before ordering or substituting a grade.
Frequently asked questions
What is the European equivalent of 316L?
EN 1.4404 (X2CrNiMo17-12-2). Other names for the same family are UNS S31603, JIS SUS316L, GB 022Cr17Ni12Mo2 and BS 316S11. JIS SUS316L allows more nickel (12 to 15 %) than ASTM 316L (10 to 14 %), so the tool rates that pair approximate rather than close.
What is the Indian Standard equivalent of SS304?
IS 6911 X04Cr19Ni9. IS 6911 was revised in 2026 with new grade names, so check the current designation with your supplier; the tool shows the earlier name with a note.
What is the EN equivalent of ASTM A105?
The nearest European grade is P250GH (1.0460) to EN 10222-2 for forgings; C22.8 is its older DIN name. The two standards set different limits on chemistry and strength, so compare them in the tool and name the governing standard on the order.
Are equivalent steel grades interchangeable?
Not automatically. Equivalents are the nearest grades in another standard; limits on carbon, nickel, molybdenum and strength can differ. The tool compares the ranges element by element and flags where they do not overlap. Substitution needs the buyer's or engineer's approval.
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