Gas Nitriding

With gas nitriding, the edge of a workpiece is either finished with nitrogen or with nitrogen and carbon (gas nitrocarburising) in a gaseous atmosphere. To improve the tribological characteristics of the component, it can then be oxidised.

Advantages

  • Improves resistance to wear and tear
  • Increases tensile strength
  • Increased compression strength
  • Improved sliding properties

Materials

  • Non- and low-alloy steels
  • Case-hardening steels
  • Tool steels
  • Nitriding steels

Available plant sizes

  • Length 5000 mm, diameter 980 mm
Gas Nitriding

Typical values for nitriding

DIN EN 10027-2 Material number DIN EN 10027-2 (Short) designation Surface Hardness in Vickers [HV0,5] max. Nitriding hardness depth (NHD) [mm]
Carbon steel
1.0060 E335 280-500 0,6
1.0577 S355 280-480 0,6
1.1191 C 45 E 300-500 0,7
1.1221 C 60 E 300-500 0,7
1.5122 37MnSi5 300-500 0,6
Tempered steel
1.0762 44SMn28 (ETG 100) 400-500 0,3
1.7033 34Cr4 500-600 0,5
1.7220 34CrMo4 500-600 0,5
1.7225 / 1.7227 42CrMo4 / 42CrMoS4 550-700 0,5
1.8159 50CrV4 550-700 0,5
1.8161 58CrV4 550-700 0,5
1.6582 34CrNiMo6 600-800 0,5
1.2710 45NiCr6 600-750 0,4
1.2312 40CrMnMoS86 650-800 0,3
Case-hardened steel
1.7131 / 1.7139 16MnCr5 / 16MnCrS5 600-750 0,5
1.7147 20MnCr5 600-650 0,4
1.5752 14NiCr14 500-650 0,4
Nitriding steel
1.8504 34CrAl6 900-1200 0,4
1.8507 34CrAlMo5 900-1300 0,5
1.8519 31CrMoV9 780-900 0,5
1.8550 34CrAlNi7 900-1100 0,5
Ball bearing steel
1.3505 100Cr6 450-700 0,25
1.2510 100MnCrW4 500-700 0,25
Grey cast iron — nodular cast iron
0.6025 EN-GJL-250 (GG 25) 300-450 0,3
0.7080 EN-GJS-600 (GGG 60) 450-600 0,4
Stainless steel
1.4006 X10Cr13 900-1100 0,1
1.4021 X20Cr13 900-1200 0,1
1.4034 X40Cr13 900-1200 0,1
1.4122 X35CrBo17 1000-1250 0,15
1.4571 X10CrNiMoTi1712-2 900-1150 0,1
Cold work steel
1.2379 X155CrMoV121 900-1200 0,15
1.2080 X210Cr12 850-1150 0,15
1.2364 X100CrMoV51 1000-1200 0,2
1.2601 X165CrMoV12 900-1150 0,15
1.2436 X210CrV12 700-900 0,15
Hot work steel
1.2343 X38CrMoV51 900-1150 0,4
1.2344 X40CrMoV51 900-1150 0,4
1.2567 X30WCrV53 850-1050 0,3
1.2365 X32CrMoV33 750-900 0,3
High Speed Steel (HSS)
All qualities 950-1400 0,02-0,15

The maximum hardness is determined by the material. All statements without guarantee.

Downloads

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Material characteristics nitriding (PDF)