Nitriding is a heat-treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface. The processes are thus similar to case-hardening but performed at a lower temperature. The advantage with nitriding is mainly the reduced distortion behavior compared to carburizing and still give a high surface strength and ductile core. However, since the process is performed at lower temperature, the same case depth as for carburizing will take considerable time to reach. Nitriding can also increase the corrosion resistance of a component. Typical applications are small gears, crank shafts and wear parts.

EN-standard

Ovako

Typical analysis

 

 

C

Si

Mn

Cr

Mo

Ni

Other

8CrMnMo16-4*

8303

0.08

0.3

1.0

4.0

0.5

 

 

42CrMo4

327, 6082

0.42

0.3

0.7

1.0

0.2

 

 

18CrMo8-5*

225

0.18

0.3

0.9

1.9

0.5

0.3

 

21CrMoV5-7*

6132

0.21

0.3

0.6

1.4

0.7

 

V

30MoCrV20-7*

499

0.30

0.2

0.3

1.7

1.8

 

V

16CrMnNiMo9-5-2*

277

0.16

0.1

1.3

2.2

0.5

0.5

V

31CrMoV9

6140

0.30

0.2

0.5

2.5

0.2

 

V

48CrMoNi4-10*

495, 6521

0.48

0.2

0.8

1.1

0.9

0.5

V

32CrMoV12-10*

398

0.32

0.2

0.5

3.0

1.0

 

V

21CrMoV5-7*

6132

0.21

0.3

0.6

1.3

0.7

 

V

X20NiCrAlMoV6-5-2-1*

Hybrid 50

0.08

0.1

0.3

5.0

0.7

5.0

Al

X20NiCrAlMoV6-5-2-1*

Hybrid 55

0.18

0.1

0.3

5.0

0.7

6.0

Al, V

X20NiCrAlMoV6-5-2-1*

Hybrid 60

0.28

0.1

0.3

5.0

0.7

6.0

Al, V

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

Product Catalog

Download PDF

Related Reading

STEEL GRADES

Quenching and Tempering Steel

Steels for quenching and tempering have a carbon level of 0.25-0.60% and can be both unalloyed and low-alloyed. Alloyed grades also contain chromium, nickel and molybdenum.

Read more

STEEL GRADES

Spring Steel

Spring steel is used in the manufacture of springs for automotive and industrial suspension, generally using low-alloy manganese, medium/high-carbon steel with a very high yield strength.

Read more

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.

Read more


Digital Support Tool - Steel Navigator

With Ovako’s Steel Navigator, finding the right clean steel has never been easier. Search by material properties, applications or end products. Compare with standard steels. And calculate machine settings to save time and increase tool life. Our digital Heat Treatment guide even helps you save time and money by predicting how a specific steel grade composition will perform after heat treatment. Whatever your application, our web-based steel selection tools let you explore hundreds of high quality steel products to find the right match for your specific needs.

Find out more at Steel Navigator

Register to Ovako´s newsletter