Characteristics

Commonly used to enrich the surface carbon content of steel that case hardening provides. This is intended to produce a high-hardness, wear-resistant surface supported by a tenacious core.

Applications

Gears for cars and tractors, universal joints and drive chains for machinery.

Similar

COPANT 4320; SAE 4320; AISI 4320; UNS G43200; DIN 15CrNi6 (1.5919); AFNOR NC 6.

Chemical Composition (% by weight)

CMnPSSiNiCrMoV
0,17 - 0,220,45 - 0,650,0300,0400,15 - 0,351,65 - 2,000,40 - 0,600,20 - 0,30-

Heat Treatment and Processing Temperatures (°C)

Max ForgingAnnealingNormalizingQuenchingQuenching MediumCarburizingTempering
1.100 - 850830 - 860900 - 955815 - 845Water900 - 925150 - 200

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