Alloy Steel AISI 8620 Forgings
8620, G86200
AISI 8620 alloy steel is a common, carburizing alloy steel. This alloy steel is flexible during hardening treatments, thus enabling improvement of case/core properties. The following datasheet will provide more details about AISI 8620 alloy steel.
Alloy steels contain a wide range of steels whose compositions exceed the limitations of C, Mo, Cr, Va, Mn, Ni, Si, and B fixed for carbon steels. These steels are more responsive to mechanical and heat treatments than carbon steels.
Alloy Steel AISI 8620 Forgings Properties
UNS G86200 Forgings Chemical Requirements
| Element | Fe | Mn | Ni | Cr | C | Si | Mo | S | P |
|---|---|---|---|---|---|---|---|---|---|
| Content (%) | 96.895-98.02 | 0.700-0.900 | 0.400-0.700 | 0.400-0.600 | 0.180-0.230 | 0.150-0.350 | 0.150-0.250 | ≤ 0.0400 | ≤ 0.0350 |
UNS G86200 Forgings Mechanical Requirements
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 530 MPa | 76900 psi |
| Yield strength | 385 MPa | 55800 psi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Izod Impact | 115 J | 84.8 ft.lb |
| Hardness, Brinell | 149 | 149 |
| Hardness, Knoop (converted from Brinell hardness) | 169 | 169 |
| Hardness, Rockwell B (converted from Brinell hardness) | 80 | 80 |
| Hardness, Vickers (converted from Brinell hardness) | 155 | 155 |
| Machinability (hot rolled and cold drawn, based on 100 machinability for AISI 1212 steel) | 65 | 65 |