Quenching and tempering consists of a two-stage heat-treatment process. Stage one includes hardening, in which the steel is austenitized to approximately 900°C and then quickly cooled with water or oil. Stage two consists of tempering the material to obtain the desired material properties. Quenching and tempering achieves a fine-grained and homogeneous microstructure. Quenched and tempered steel is characterized by high strength and good ductility.

Ovako
standard

EN-standard*

Typical analysis

   

C

Si

Mn

Cr

Mo

Ni

Other

21NiCrMoV5-7

21NiCrMoV5-7F

0.2

0.3

0.6

1.3

0.7

 

V

23MnNiMoCr5-4

23MnNiMoCr5-4

0.2

0.2

1.3

0.5

0.6

1.0

 

31CrMoV9

31CrMoV9

0.3

0.2

0.6

2.5

0.2

 

V

37CrV3

37CrV3F

0.4

0.3

0.8

0.8

 

 

V

40CrMoV4-6

40CrMoV4-6

0.4

0.3

0.7

1.1

0.6

 

V

B7

44CrMnMo4-4F

0.4

0.3

0.9

1.0

0.2

 

 

B16

42CrMoV4-6F

0.4

0.3

0.6

1.0

0.6

 

V

C35E

C35E

0.4

0.2

0.7

 

 

 

 

Imacro M

5CrMn16-4F

0.1

0.3

1.0

4.0

 

 

Nb

Imacro NIT

8CrMnMo16-4F

0.1

0.3

1.0

4.0

0.5

 

 

IMAFORM

7Cr5F

0.1

0.3

0.8

1.3

 

 

 

IMANITE M

21CrMoV5-7F

0.2

0.3

0.6

1.4

0.7

 

V

L7

43CrMnMo4-4

0.4

0.3

0.9

1.0

0.2

 

 

MoC 210 M

25CrMo4

0.3

0.2

0.9

1.1

0.2

 

 

MoC 310 M

34CrMo4

0.3

0.3

0.8

1.1

0.2

 

 

MoC 410

42CrMo4

0.4

0.3

0.8

1.1

0.2

 

 

MoC 510

50CrMo4

0.5

0.2

0.7

1.0

0.2

 

 

MoCN 315

34CrNiMo6

0.3

0.2

0.7

1.4

0.2

1.3

 

MoCN 320

30CrNiMo8

0.3

0.3

0.7

2.0

2.0

0.3

 

Ovako 322

25CrMo4

0.3

0.2

0.9

1.1

0.2

 

 

Ovako 326

42CrMo4

0.4

0.3

0.8

1.1

0.2

 

 

Ovako 355

40NiCrMo7-3F

0.4

0.3

0.7

0.8

0.3

1.8

V

Ovako 356

34CrNiMo6

0.3

0.2

0.7

1.4

0.2

1.3

 

Ovako 398

32CrMoV12-10

0.3

0.3

0.5

3.0

1.0

0.3

 

Ovako 420

24CrMo13-6

0.2

0.2

0.4

3.1

0.5

 

 

Ovako 453

32NiCrMo13-4F

0.3

0.2

0.5

1.1

0.2

3.1

 

Ovako 477

40SiCrMnMo7-6F

0.4

1.7

1.5

1.5

0.4

 

 

Ovako 495

48CrMoNi4-10F

0.5

0.2

0.8

1.1

0.9

0.4

V

Ovako 497

42NiSiCrMo8-7-3F

0.4

1.6

0.6

0.7

0.3

1.7

V

Ovako 498

30NiCrMo16-6

0.3

0.3

0.5

1.4

0.2

4.0

 

Ovako 528

50CrMo4

0.5

0.2

0.7

1.0

0.2

 

 

This is a selection of our standard program. The steel grades above can all be made as BQ-Steel, IQ-Steel or M-Steel.

  • Designation followed by “F” is not an official EN standard grade but named according to the rules in EN 10027.
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