Many General Engineering and Structural grades come close to Quench and Tempering, Carburizing or Nitriding grades. It is from this versatility these grades are called General Engineering and Structural grades and are regulated by standards in most countries. Within EU many of the Structural grades has a S as Prefix and the Engineering Grades an E,  followed by the Yield strength, eg S235, S355, E470, E520 etc.

These Standards do then also regulate shapes, sizes, chemical composition, mechanical properties such as strengths, storage practices, etc.

These steel are produced by all Ovako mills and come in different executions such as bar, tube and rings. General Engineering and Structural steel is also base for our hard-chrome plated products, as well as the standard Hollow bar program in Ovako 280.

informative image: General steel products

EN-standard

 Ovako

Typical analysis
   

C

Si

Mn

Cr

Mo

Ni

Other

C15

8362

0.15

0.2

0.5

 

 

 

 

C22

C22R

0.21

0.2

0.6

 

 

 

 

C35

8563

0.35

0.2

0.7

 

 

 

 

C40

C40R

0.40

0.2

0.7

 

 

 

 

C45

047, 5155, 1672

0.45

0.2

0.7

 

 

 

 

C55

056, 8665

0.55

0.2

0.8

 

 

 

 

C60

061A

0.60

0.2

0.8

 

 

 

 
S235JR

1312

0.18

0.3

1.2

 

 

 

 
S355J2

520, 9817

0.20

0.3

1.2

 

 

 

 
P355NH

2714

0.14

0.3

1.2

 

 

 

 

19MnVS6

7255, SB280

0.19

0.4

1.5

 

 

 

V
19MnV6*

280

0.19

0.4

1.5

 

 

 

V

30MnVS6

9830

0.30

0.5

1.4

 

 

 

V
38MnVS6

482, 7221

0.38

0.4

1.3

 

 

 

V

46MnVS3

382

0.46

0.3

0.7

 

 

 

V
S400*

SB400

0.20

0.3

1.2

 

 

 

V
S460

19MnVS6

0.20

0.2

1.3

 

 

 

 
SB280X

19MnVs6

0.18

0,35

1,55

 

 

 

V
24MnV6*

SB600

0.25

0.4

1.5

 

 

 

V
11SMn30

2715

0.11

0.2

1.2

 

 

 

S
20Mn5*

2630

0.20

0.4

1.3

 

 

 

S

S355J0

2720

0.16

0.4

1.3

 

 

 

S
4CrMn16-4*

8301

0.04

0.3

1.0

4.0

 

 

Nb

EN-standard designation followed by “*” is not an official EN standard grade but named according to the rules in EN 10027.

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Related reading

Boron Steel

STEEL GRADES

Boron Steel

Boron is a small element cost-effectively added to improve hardenability and increase strength, mostly for lower and medium carbon steels with less than 0.40% carbon.

Case-Hardening Steel

STEEL GRADES

Case-Hardening Steel

Steels for carburizing and case hardening typically have a relatively low carbon level, 0.10-0.25% C, and are used when there is a demand for varying properties, such as for components in transmissions.

Through-hardening Bearing Steel

STEEL GRADES

Through-Hardening Bearing Steel

Through-hardening steel contains typically 1% carbon and alloying elements for hardenability, exhibiting very high strength but low ductility. Used with martensitic or bainitic hardening.

 

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