Steel grade equivalents
Type a grade from any standard to see its equivalents. Choose the standard you use most to move it to the first column.
Main standard
62 results
| 🇺🇸 AISI / ASTM | 🇯🇵 JIS | 🇨🇳 GB | 🇩🇪 DIN / EN | 🇩🇪 W.-Nr. | 🇻🇳 TCVN | Typical use |
|---|---|---|---|---|---|---|
| Structural steel | ||||||
| A36 | SS400 | Q235B | S235JR | 1.0038 | CT34 / CT38 | Structures, base plates, frames |
| A572 Gr.50 | SM490A | Q355B | S355JR | 1.0045 | — | High-strength structures |
| Carbon steel | ||||||
| 1010 | S10C | 10 | C10E | 1.1121 | C10 | Pressed and carburized parts |
| 1020 | S20C | 20 | C22E | 1.1151 | C20 | Light shafts, carburized parts |
| 1035 | S35C | 35 | C35E | 1.1181 | C35 | Shafts, bolts, general parts |
| 1045 | S45C | 45 | C45E | 1.1191 | C45 | Shafts, gears, the most common machine steel |
| 1050 | S50C | 50 | C50E | 1.1206 | C50 | Wear-resistant shafts and gears |
| 1055 | S55C | 55 | C55E | 1.1203 | C55 | Rolls, induction-hardened parts |
| Free-cutting steel | ||||||
| 1213 | SUM22 | Y15 | 11SMn30 | 1.0715 | — | Free-machining parts, automatic lathes |
| 12L14 | SUM24L | Y15Pb | 11SMnPb30 | 1.0718 | — | High-volume small parts |
| Alloy steel | ||||||
| 5120 | SCr420 | 20Cr | 20Cr4 | 1.7027 | — | Carburized gears and shafts |
| 5140 | SCr440 | 40Cr | 41Cr4 | 1.7035 | 40Cr | Quenched and tempered shafts, gears |
| 4118 | SCM420 | 20CrMo | 25CrMo4 | 1.7218 | — | Carburized gears and shafts |
| 4135 | SCM435 | 35CrMo | 34CrMo4 | 1.7220 | — | High-strength shafts, bolts |
| 4140 | SCM440 | 42CrMo | 42CrMo4 | 1.7225 | — | Heavy-duty shafts, gears |
| 8620 | SNCM220 | 20CrNiMo | 20NiCrMo2-2 | 1.6523 | — | Carburized gears |
| 4340 | SNCM439 | 40CrNiMoA | 34CrNiMo6 | 1.6582 | — | Very heavy-duty shafts and parts |
| — | — | 20CrMnTi | — | — | — | Carburized gears (Chinese grade) |
| Bearing steel | ||||||
| 52100 | SUJ2 | GCr15 | 100Cr6 | 1.3505 | — | Bearings, rollers, wear parts |
| Spring steel | ||||||
| 9260 | SUP6 | 60Si2Mn | 60Si7 | 1.5027 | — | Leaf and coil springs |
| 6150 | SUP10 | 50CrVA | 51CrV4 | 1.8159 | — | High-load springs |
| Tool & die steel | ||||||
| W1 | SK85 | T8 | C80U | 1.1525 | CD80 | Hand tools, simple cutters |
| W1 | SK105 | T10 | C105U | 1.1545 | CD100 | Punches, simple cutting tools |
| D3 | SKD1 | Cr12 | X210Cr12 | 1.2080 | — | Cold-work dies |
| D2 | SKD11 | Cr12Mo1V1 (Cr12MoV) | X153CrMoV12 | 1.2379 | — | Cold-work dies, blades, high wear resistance |
| O1 | SKS3 | 9CrWMn | 100MnCrW4 | 1.2510 | — | Gauges, small dies |
| H13 | SKD61 | 4Cr5MoSiV1 | X40CrMoV5-1 | 1.2344 | — | Die-casting and hot-work dies |
| H21 | SKD5 | 3Cr2W8V | X30WCrV9-3 | 1.2581 | — | Hot forging dies |
| L6 | SKT4 | 5CrNiMo | 55NiCrMoV7 | 1.2714 | — | Forging dies, die blocks |
| P20 | — | 3Cr2Mo | 40CrMnMo7 | 1.2311 | — | Plastic molds |
| High-speed steel | ||||||
| M2 | SKH51 | W6Mo5Cr4V2 | HS6-5-2 | 1.3343 | — | HSS drills, taps, cutters |
| T1 | SKH2 | W18Cr4V | HS18-0-1 | 1.3355 | — | Traditional HSS tools |
| Stainless steel | ||||||
| 304 | SUS304 | 06Cr19Ni10 (0Cr18Ni9) | X5CrNi18-10 | 1.4301 | — | Most common stainless: food, equipment |
| 304L | SUS304L | 022Cr19Ni10 | X2CrNi19-11 | 1.4306 | — | Welded parts, corrosion resistance |
| 302 | SUS302 | 12Cr18Ni9 | X10CrNi18-8 | 1.4310 | — | Stainless springs, pressed parts |
| 303 | SUS303 | Y12Cr18Ni9 (Y1Cr18Ni9) | X8CrNiS18-9 | 1.4305 | — | Free-machining stainless |
| 316 | SUS316 | 06Cr17Ni12Mo2 | X5CrNiMo17-12-2 | 1.4401 | — | Chemical and marine use |
| 316L | SUS316L | 022Cr17Ni12Mo2 | X2CrNiMo17-12-2 | 1.4404 | — | Medical, welded corrosion-resistant parts |
| 321 | SUS321 | 06Cr18Ni11Ti | X6CrNiTi18-10 | 1.4541 | — | Heat resistance, exhaust parts |
| 310S | SUS310S | 06Cr25Ni20 | X8CrNi25-21 | 1.4845 | — | Furnace parts, high heat |
| 430 | SUS430 | 10Cr17 | X6Cr17 | 1.4016 | — | Ferritic stainless, appliances |
| 410 | SUS410 | 12Cr13 | X12Cr13 | 1.4006 | — | Valves, pump shafts |
| 420 | SUS420J1 | 20Cr13 | X20Cr13 | 1.4021 | — | Shafts, valves, knives |
| 420 | SUS420J2 | 30Cr13 | X30Cr13 | 1.4028 | — | Plastic molds, knives, tools |
| 440C | SUS440C | 108Cr17 (11Cr17) | X105CrMo17 | 1.4125 | — | Stainless bearings, valves, knives |
| 630 (17-4PH) | SUS630 | 05Cr17Ni4Cu4Nb | X5CrNiCuNb16-4 | 1.4542 | — | Precipitation-hardened stainless, shafts, aerospace |
| Cast iron | ||||||
| Class 30 | FC200 | HT200 | EN-GJL-200 (GG20) | 0.6020 | — | Machine beds, housings |
| Class 35 / 40 | FC250 | HT250 | EN-GJL-250 (GG25) | 0.6025 | — | Beds, flywheels, pump casings |
| Class 45 | FC300 | HT300 | EN-GJL-300 (GG30) | 0.6030 | — | High-strength castings |
| 60-40-18 | FCD400 | QT400-15 | EN-GJS-400-15 (GGG40) | 0.7040 | — | Ductile iron: valves, pipe fittings |
| 65-45-12 | FCD450 | QT450-10 | EN-GJS-450-10 | — | — | Ductile iron: automotive parts |
| 70-50-05 / 80-55-06 | FCD500 | QT500-7 | EN-GJS-500-7 (GGG50) | 0.7050 | — | Crankshafts, cast gears |
| 80-55-06 / 100-70-03 | FCD600 | QT600-3 | EN-GJS-600-3 (GGG60) | 0.7060 | — | Wear-resistant castings |
| Aluminum alloy | ||||||
| 2024 | A2024 | 2024 | AlCuMg2 | 3.1355 | — | Aerospace, stressed parts |
| 5052 | A5052 | 5052 | AlMg2.5 | 3.3523 | — | Sheet, enclosures, bent parts |
| 6061 | A6061 | 6061 | AlMg1SiCu | 3.3211 | — | The most common machining aluminum |
| 6063 | A6063 | 6063 | AlMgSi0.5 | 3.3206 | — | Extrusions |
| 6082 | — | 6082 | AlSi1MgMn | 3.2315 | — | Structural and machined parts |
| 7075 | A7075 | 7075 | AlZnMgCu1.5 | 3.4365 | — | Molds, high-strength parts |
| Copper alloy | ||||||
| C28000 | C2801 | H62 | CuZn40 | 2.0360 | — | Brass: pressed parts, tubes |
| C37700 | C3771 | HPb59-1 | CuZn39Pb2 | 2.0380 | — | Hot-forging brass, valve parts |
| C38500 | C3604 | HPb58-2.5 / HPb58-3 | CuZn39Pb3 | 2.0401 | — | Free-cutting brass, automatic lathes |
No matching results.
Equivalents are approximate: chemical composition and mechanical properties can differ between standards. For critical parts, check the original standard and the mill certificate. A dash means there is no common equivalent; two values mean reference sources differ.
Looking for a machine?
Send your drawing, material and volume. We recommend suitable machines and send quotes.
Request a quote