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Home / Products / Steel / Nickel-based Alloy Steel / 8620/20NiCrMo2/20CrNiMo alloy steel
8620/20NiCrMo2/20CrNiMo alloy steel

8620/20NiCrMo2/20CrNiMo alloy steel

8620, also known as 20NiCrMo2 (EN standard) or 20CrNiMo (GB standard), is a low-alloy case hardening steel combining nickel, chromium, and molybdenum. It is renowned for its good core toughness, high surface hardness after carburizing, and excellent wear resistance, making it ideal for critical mechanical components subject to impact and wear.

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Benefits

Benefits:
High Surface Hardness: Achievable surface hardness up to 58–62 HRC after carburizing and quenching.
Tough and Ductile Core: Excellent internal toughness provides resistance to shock and fatigue loading.
Good Wear and Fatigue Resistance: Well-suited for long-life mechanical systems like gears and shafts.
Good Machinability and Forgeability: Can be readily forged, machined, and heat-treated.
Uniform Hardening Response: Consistent performance in deep case applications.

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