Comparison table of steel grades in different countries

Date:2025-08-13Tags:steel grades, ASTM , ASME, SAE


Steel plays a vital role in modern industry and is widely used. However, steel grades vary from country to country, necessitating comparison. Below, we provide a cross-reference table of steel grades from various countries to help you better understand and use steel.


1. Chinese Steel Grades
Chinese steel grades begin with the letter Q, representing light rail rails. Q235 steel is a common carbon structural steel in my country, equivalent to the US A36 and Japan's SS400. Q345B is equivalent to the US A572 and Japan's SM490. Both steel grades offer excellent weldability and low-temperature toughness.

2. US Steel Grades
US steel grades are designated by a combination of letters, numbers, and symbols. Common steel grades include A36, A572, A500, and A514. A36 is a commonly used carbon structural steel, A572 is a high-strength low-alloy structural steel, A500 is used for pipes, and A514 is a high-strength alloy steel plate with excellent wear resistance and workability.

3. Japanese Steel Grades
Japanese steel grades begin with "S." S20C, S35C, and S45C are low-carbon steels suitable for manufacturing mechanical parts; S50C and S55C are medium-carbon steels suitable for various molds and cutting tools; and S60C and S65C are high-carbon steels suitable for high-strength parts.

The above is a comparison chart of steel grades from different countries. While steel grades vary from country to country, they all have their own characteristics and uses. When choosing steel, you should consider your specific needs.


American Europe EN Germany DIN Italy UNI France NF Japan JIS
ASTM / ASME / SAE
A36 S235J2
A204 Gr. B 16Mo3 15Mo3 16Mo3 15D3
A283 A, B, C, D S185 ST33 FE320 A33 SS330
S235JR ST37-2 E24-2
S235JRG1 UST37-2
A284 Gr. C, D S235J ST37-3N FE360D E24-4 SM400C
S235JR RST37-2 FE360B
S235JO ST37-3U FE360C
S235J2+N ST37-3N FE360D
A514 S690Q STE690V E690TR
A529 Gr. 42, 50 S275JR ST44-2 FE430B E28-2
S275JO ST44-3U FE430C E28-3
A537 S460Q E460TR SM58
A572 Gr. C S355M STE355TM FEE355KGTM E355R
A572 Gr. 42 S275J0 ST44-3U FE430C E28-3
S275J2+N ST44-3N FE430D E28-4
S275J2
A572 Gr. 50 S355J2+N ST52-3N FE510D E36-3 SM490C
S275J2
A619 DC03 ST13 FEP02 E SPCD
A620 DC04 ST14 FEP04 ES SPCE
A633 S355JR ST52-3U FE510B E36-2 SM490A
S355JO FE510C E36-3 SS490
A633 Gr. A S275NL TSTE285
A633 Gr. C, D S355NL TSTE355 FEE355KTN E355FP
A633 Gr. E S420NL TSTE420 E420FP
A656 S335J2 FE510DD E36-4 SS490YA
S335K2
S335K2+N
A70950W S355J0W WTST52-3 FE355W E36W-B3
S355J2W
S355K2W
A945 Gr. 50 S355ML TSTE355TM E355FP
A945 Gr. 60 S420ML TSTE420TM E420FP
SA387 Gr. 11 13CrMoSi5-5
SA387 Gr. 22 10/11CrMo9-10 10CrMo9-10 12CrMo9.10 10CD9.10
SA516 Gr. 55 P235GH HI FE360-1KW A37CP SPV24
SA414 Gr. C
SA285 Gr. C
SA516 GR. 60 P265GH HII FE410-1KW A42CP SGV42
SA414 Gr. E
SA516 Gr. 65 P295GH 17Mn4 FE460-1KW A48CP SGV46
SA414 Gr. F SA299 SPV32
SA516 Gr. 70 P355NH WSTE355 FEE355 KW A510 AP
P355NL1 TSTE355 FEE355 KT A510 FP
SAE1020 C20E CK20 C20
S275JR ST44-2 FE430B E28-2
S275JR ST44-2 FE430B E28-2
SAE1035 C35E CK35 C35 XC38 S35C
SAE1040 C40E CK40 C40 XC42 S40C
SAE1042-1045 C45E CK45 C45 XC48 S45C
SAE4140 42CrMo4 42CrMo4 42CrMo4 42CD4 SCM440H
SAE4142
SAE4340 34CrNiMo6 34CrNiMo6 34CrNiMo6 SNCM447

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