STEEL GRADES


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