AISI 8620 Steel is a low alloy nickel, chromium, molybdenum case hardening steel, generally supplied in the as-rolled condition with a maximum hardness HB 255max. SAE steel 8620 offers high external strength and good internal strength, making it highly wear-resistant. Let’s introduce 8620 equivalent steel in this article.

AISI 8620 is American Standard steel, its performance and application keep accordance with Germany, Japan, China, British steel industry standard. We would like to introduce such material in this article.

8620 equivalent

8620 equivalent:

AISI 8620 equivalent steel of Germany standard grade is DIN 21NiCrMo2 and W-Nr 1.6523. Chemical composition comparison as below table

Item C(％) Si(％) Mn(％) P(％)≤ S(％)≤ Cr(％) Mo(％) Ni(％)
8620 0.18-0.23 0.15-0.35 0.70-0.90 0.035 0.04 0.40-0.60 0.15-0.25 0.40-0.70
21NiCrMo2/1.6523 0.17-0.23 0.4 0.65-0.95 0.025 0.035 0.35-0.70 0.15-0.25 0.40-0.70


AISI 8620 substitute steel of China standard grade is GB 20CrNiMo. Chemical compostion comparison as below table

Item C(％) Si(％) Mn(％) P(％)≤ S(％)≤ Cr(％) Mo(％) Ni(％)
8620 0.18-0.23 0.15-0.35 0.70-0.90 0.035 0.04 0.40-0.60 0.15-0.25 0.40-0.70
20CrNiMo 0.17-0.23 0.17-0.37 0.60-0.95 0.035 0.035 0.40-0.70 0.20-0.30 0.25-0.75


AISI 8620 replacement of Japan standard grade is JIS SNCM220. Chemical composition comparison as below table

Item C(％) Si(％) Mn(％) P(％)≤ S(％)≤ Cr(％) Mo(％) Ni(％)
8620 0.18-0.23 0.15-0.35 0.70-0.90 0.035 0.04 0.40-0.60 0.15-0.25 0.40-0.70
SNCM220 0.17-0.23 0.15-0.35 0.60-0.90 0.03 0.03 0.40-0.70 0.15-0.30 0.40-0.70

OTAI  8620 Steel is from top 3 China steel mill, our supply range as follow

8620 Round Bar: diameter 8mm – 3000mm
8620 Steel Plate: thickness 10mm – 1500mm x width 200mm – 3000mm
8620 Square Bar: 20mm – 500mm
8620 tubes are also available against your detailed request.
Surface Finish: Black, Rough Machined, Turned or as per given requirements.