Steel grades are used to classify various steels by their composition and physical properties. These grades have been developed by a number of standards organizations. These are those standards organizations:
SAE steel grades
British Standards
International Organization for Standardization ISO/TS 4949:2003
For alloys in general (including steel), unified numbering system (UNS) of ASTM International and the Society of Automotive Engineers (SAE).
Japanese steel grades: JIS standard
Germany steel grades: DIN standard
China steel grades: GB standard
Australian Standards
French Standards
International Steel Grades
|
Standard Grade |
AS | SAE |
US ASTM |
UK BS |
German DIN |
Japan JIS |
French |
| Structural | 250 | A36 | 4360-43A | 17100/ST33 | G3101-55400/ST37-2, ST44-2,3 | -5541 | |
| 350 |
A572GR50 A678GRA A709GR50 |
4360-50B | 17100/ST52-3 | G3106-SM50A | NFA 35-501/E36-2 | ||
| Plain Carbon | 1006 | 1006 | 970-015-A03-030-A04 | ||||
| 1008 | 1008 | A576-1008 |
970-040 A04 1449-3CR 3CS, 3HR, 3HS 1717-ERW101 3606-261 |
1.0331 1.0333 1.0204 |
|||
| 1010 | 1010 | A576-1010 |
970-050 A12, 040, A12 -040, A10, 045 A10 -060 A10, 0450 M10 (EN2A, EN2A/1, En2B, EN82A) -045 M10 980-CEW1 1449-40F30, 43F35, 46F40 -50F45, 60F55, 68F62 |
1.1121 1.0204 |
G4051-S10C -S9CK |
XC10 | |
| 1015 | 1015 |
A576-1015 -1017 |
970-060 A17, 050 A17, 040 A17 -060 A15 050 A15, 040 A15 -080 A15, 080 M15, 173H16
|
1.1141 |
G4051-S15C -S17C S-15CK |
XC15 | |
| 1016 |
A576-1015 -1017 |
970-080 A17, 060 A15, 080 A15 |
1.0419 | ||||
| 1025 | A576-1025 | 970-060A25 | 1.1158 | G4051-S25C | |||
| 1030 | A576-1030 |
970-080 A30 080 A32 |
1.1172 |
G4051-S30C -S33C |
|||
| 1040 | 1040 |
A576-1041 -1038 |
970-080 A40, 080 A42 080 M40 (EN8C, EN8) 060 A40 3146-CLASS1, GRADE C, CLASS 8 |
1.1186 | G4051-S40C | ||
| 1045 | 1045 |
A576-1040 -1046 |
970-080 A47, 080 M46 060 A47 |
1.0503 |
1.1191 CK45 G4051-S45C C45-S48C |
XC45 XC48 CC45 |
|
| 1055 | 1055 | A576-1055 |
970-060 A57, 070 M55 080 A52 -080 A57 3100-AW3 |
1.1209 | G4051-S55C |
XC55 XC60 |
|
| 1070 | 1070 | A576-1070 |
970-070 A72, 080 A72 (EN42) |
1.1231 | XC70 | ||
| 1084 |
A576-1080 -1084 |
BS970-080 A83, 080 A86 |
