NAMTEC

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The range of International steel grades is vast and it would be impractical to cover a fraction of them on this site. Below are listed the grades of steel that we have most frequently had requests for information submitted to this site. Some of these grades are exclusively steel strip, whilst others are also used in long products. The analyses are for guidance only as the equivalents are never exact.

There are links on the right hand site to companies and organisations that are able to offer more comprehensive steel specification data, or other pages on this site that contain more information on specific steel grades.

Stainless Steel grades can be found  here        More International equivalents can be found  here

The main standards in the United Kingdom concerned with steel strip are :-

BS4360 this is gradually being replaced by EN10025

BS1449 steel plate, sheet and strip - cross reference BS EN 10139

Cold Rolled Drawing Qualities ( Mild Steel )

Euronorm

Germany

UK

USA

EN 10139

DIN 1624

BS 1449

ASTM

%C

%Mn

%Si

%S

%P

%Al

%Cr

%other

DC04

St4

CS1

SAE 1006

.03 - .06

.18 - .40

.02 max

.02 max

.02 max

.02 - .06

-

-

DC04/DC03

St4/RRSt3

CS1/CS3

SAE 1006

.04 - .08

.40 max

.03 max

.02 max

.02 max

.02 - .06

-

-

DC01

St2

CS4

SAE 1010

.08 - .13

.30 - .40

.03 max

.03 max

.03 max

.02 - .06

-

-

-

-

-

SAE 1018

.14 - .17

.60 - .80

.15 - .25

.02 max

.025 max

.02 - .09

-

-

Steel Grades for Forming

Euronorm

Germany

UK

USA

EN 10111

Din 1614

BS1449

%C

%Mn

%Si

%S

%P

%Al

%Cr

%other

DD14

-

SAE 1006

0.08max

0.35max

-

0.025max

0.025max

DD13

RStW24

HR1

SAE 1006

0.08max

0.40max

-

0.030max

0.030max

DD12

RStW23

HR2

SAE 1010

0.10max

0.45max

-

0.035max

0.035max

DD11

StW22

HR3/HR4

SAE 1010

0.12max

0.60max

-

0.045max

0.045max

Structural Steels

Euronorm

Germany

UK

USA

EN10025

Din 17100

BS4360

ASTM

%C

%Mn

%Si

%S

%P

S235

40A

A283C

0.22 max

1.60 max

0.50 max

.050 max

.050 max

S235JR

Rst37-2

40B

-

-

S275

43A

A570Gr40

0.25 max

1.60 max

0.50 max

.050 max

.050 max

245

430/510

S275

St44-2

43B

-

-

S355

50A

A572Gr50

-

-

S355JR

50B

-

-

S355JO

St52-3U

50C

0.22 max

1.60 max

0.60 max

0.40 max

0.040 max

490/620

Micro-Alloyed Steels

Euronorm

Germany

UK

USA

%C

%Mn

other*

Min Yield N mm²

Tensile N mm²

EN10149

SEW092

BS1449

SAEJ1392

With Nb. Ti. or V as grain refining element

S315MC

QSTE 340TM

40/30

045XLK

.12 max

1.30max

315

390-510

S355MC

QSTE 380TM

43/35

050XLK

.12 max

1.50max

355

430-550

S420MC

QSTE 420M

46/40

060XLK

1.20 max

-

-

S460ML

QSTE 500TM

50/45

.12 max

1.60 max

460

520-670

S550MC

QSTE 550TM

60/55

080XLK

Carbon Steels For Quenching and Tempering

Euronorm

Germany

UK

USA

EN 10132 - 3

DIN 17200

BS 1449

ASTM

%C

%Mn

%Si

%S

%P

%Al

%Cr

%other

C22E

CK2/C22

-

SAE 1020

.18 - .22

.60 - .70

.10 - .35

.02 max

.03 max

.01 max

-

-

C35E

CK35/C35

-

SAE 1035

.33 - .38

.50 - .70

.10 - .35

.010 max

.02 max

.02 - .06

.20 - .27

-

C40E

CK40/C40

CS40

SAE 1040

.37 - .42

.60 - .75

.15 - .25

.015 max

.02 max

.05 max

.25 - .35

-

-

-

CS40

SAE 1043

.40 - .45

.70 - .90

.10 - .35

.010 max

.02 max

.02 - .06

.20 - .30

-

C50E

CK45/C45

CS50

SAE 1050

.45 - .50

.65 - .80

.10 - .35

.010 max

.02 max

.02 - .06

.22 - .30

-

C60E

CK60/C60

-

SAE 1055

.57 - .61

.60 - .90

.15 - .30

.008 max

.02 max

.02 - .06

.25 - .35

-

Case Hardening Steels

Euronorm

Germany

UK

USA

EN 10132 - 2

DIN 17210

BS 1449

ASTM

%C

%Mn

%Si

%S

%P

%Al

%Cr

%other

C10E

CK10/C10

CS12

SAE 1010

.10 - .13

.40 - .60

.15 - .25

.008 max

.02 max

.01 max

-

-

16MnCr5

16MnCr5

-

-

.14 - .19

1.0 - 1.3

.40 max

.02 max

.02 max

.015 max

.80 - .11

-

Carbon Steels for Heat Treatment

Euronorm

Germany

UK

USA

EN 10132 - 4

DIN 17222

BS 1449

SAE J403

%C

%Mn

%Si

%S

%P

%Al

%Cr

%other

CK 50

CS50

SAE1050

.45-.55

.50-.90

.05-.35

.040 max

.045 max

-

-

C67S

CK67/C67

CS70

SAE 1070

.68 - .73

.60 - .85

.15 - .25

.01 max

.02 max

-

.20 - .30

-

C75S

CK75/C75

CS70

SAE 1074

.70 - .75

.60 - .80

.15 - .30

.025 max

.025 max

.02 - .05

.20 - .30

-

C85S

CK85

CS80

SAE 1085

.80 - .90

.40 - .70

.15 - .35

.025 max

.025 max

-

.40 max

-

CK101

CS95

SAE 1095

.90-1.00

.30-.60

.05-.35

.025 max

.025 max

-

-

-

Boron Steels

Euronorm

Germany

UK

USA

EN 10083

DIN 1624

BS 1449

ASTM J1268

%C

%Mn

%Si

%S

%P

%Al

%Cr

%Boron

22Mnb5

22B2

.22/.25

1.20/1.40

0.20/0.30

.004 max

.025 max

-

.0,15-0,35

.002.0035

30MnB5

28B2

15B30

.27/.33

1.15/1.45

0.20/0.30

.004 max

.025 max

-

.0,15-0,35

.0010/.0050

An excellent link to alloy steels here

Alloy Steels  

Uni 7845

Germany

UK

USA

DIN

BS

SAE

%C

%Mn

%Si

%S

%P

%Al

%Cr

%V

16MnCr5

5120H

.13-0.19

1.0-1.3

.15-.40

.030 max

.030 max

-

.80-1.1

50CrV4

50CV4

735A50

6150

.47-0.55

0.70-1.10

0.15-0.40

.035 max

.035 max

-

-

.10-.20

42CrMo4

2CrMo4

-

4140

.38 - .45

.60 - .90

.40 max

.035 max

.035 max

-

0.90 - 1.20

-

15CrMo5

-

-

.12 - .18

.80 - 1.10

.15 - .40

.015 max

.025 max

.05 max

0.90 - 1.20

-

100Cr6

100Cr6

-

52100

.95 - 1.10

.25 - .45

.15 - .35

.025 max

.030 max

-

1.35 - 1.65

-

25CrMo4

25CrMo4

-

.22 - .29

.60 - .90

.40 max

.035 max

.035 max

-

.90 - 1.20

-

30CrMo4

4130

.27-.34

.40-.70

.15-.40

.035 max

.035 max

-

.90-1.10

-

• AISI Carbon Steels

• AISI Stainless Steels

• Din 1614

• Din 17100

• BS1449

• EN 10132

• EN 10139

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Micro-Alloyed Steels

A micro-alloyed steel can be defined as a carbon-manganese steel containing deliberately added alloying elements totalling only 0.05 to 0.10%. Alloying elements which are effective in modifying steel properties when present in such small amounts include boron, vanadium and niobium and boron in even lesser amounts (0.005% /0.003%).

Micro-alloyed steels are manufactured in Large tonnages for high pressure pipelines in the petroleum industry and automotive forgings.

A major advantage of these steels is that in the case of forgings, careful control of forge processing temperatures can eliminate subsequent heat treatment. This is a major cost advantage particularly with certain automotive components. Mechanical properties developed by controlled hot working conditions are similar to those developed by conventional hardening and tempering treatments for components where strength and toughness are required