Standard Comporision:
| Country | German | USA | Japan | China | Russia | British |
| Standard | DIN/Wr. | ASTM/AISI | JIS | GB | GOST | BS |
| Grade | 1.6523/21NiCrMo2 | 8620 | SNCM220 | * | * | 805M20 |
Chemical Composition:
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
| 8620 | 0.18-0.23 | 0.15-0.35 | 0.70-0.90 | ≤0.035 | ≤0.040 | 0.40-0.60 | 0.15-0.25 | 0.40-0.70 |
| 1.6523/21NiCrMo2 | 0.15-0.21 | ≤0.40 | 0.50-0.90 | ≤0.035 | ≤0.040 | 1.50-1.80 | 0.25-0.35 | 1.40-1.70 |
| SNCM220 | 0.18-0.23 | 0.15-0.35 | 0.70-0.90 | ≤0.035 | ≤0.040 | 0.40-0.60 | 0.15-0.25 | 0.40-0.70 |
| 805M20 | 0.18-0.23 | 0.15-0.35 | 0.70-0.90 | ≤0.035 | ≤0.040 | 0.40-0.60 | 0.15-0.25 | 0.40-0.70 |
Available Size:
| Shape: | Available Status | Available size(mm) |
| Plate | N | * |
| Flat bar | Y | 20-90X155-710X2500-5800 |
| Sheet | N | * |
| Block | Y | 100-300X610-1500X2500-5800 |
| Round bar | Y | Dia20-300X2500-5800 |
| Hexagonal bar | N | * |
Delivery Condition:
Hot rolled/Forged+Black surface/Peeled/Rough turned
Delivery time:
Warehouse regular stock sizes:3-7 days
Mill manufacture sizes:15-60 days
Brief introduction:
AISI 8620 Steel is a low alloy nickel, chromium, molybdenum case hardening steel, generally supplied in the as rolled condition with a maximum hardness max HB 255. It is commonly supplied in 8620 round bar.
It is flexible during hardening treatments, thus enabling improvement of case/core properties. Pre hardened and tempered (uncarburized) 8620 can be further surface hardened by nitriding. However, it will not respond satisfactorily to flame or induction hardening due to its low carbon content.
Application:
Steel 8620 is suited for applications which require a combination of toughness and wear resistance.
Disclaimer:the content appearing on this webpage is for informational purposes only. Gotta makes no representation or warranty of any kind, be it expressed or implied, as to the accuracy, completeness, or validity of the information.
Copy © 2025 Dongguan Gotta Special Steel Co.,Ltd All Rights Reserved.
