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STEEL BARS

CASE-HARDENING STEEL

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.

8620

CHARACTERISTICS

Used in medium cross-sections requiring mid-range hardenability, mechanical resistance and shock resistance.

APPLICATIONS

Worms and steering sectors, camshafts, driveshafts, truck gears, crossheads, crowns, pinions and crankshafts. Also used to manufacture case-hardened bearings .

SIMILAR MATERIALS

COPANT 8620; SAE 8620; AISI 8620; UNS G86200; DIN 20NiCrMo2-2 (1.6523); AFNOR 20 NC 2; JIS SNCM 220;

Chemical Composition (% BY WEIGHT)

CMnPSSiNiCrMoV
0,18 – 0,230,70 – 0,900,0300,0400,15 – 0,350,40 - 0,700,40 -0,600,15 – 0,25-

THERMAL TREATMENT AND PROCESSING TEMPERATURES (°C)

Forging - Max.ReheatingNormalizationQuenchingQuenching MediumCase HardeningTempering
1.100 - 850855 - 885870 - 955845 - 870óleo900 - 925200 - 230

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