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8620
8620 Product Guide
Applications | Specifications | Mechanical and Chemical Data | Tolerances
Overview
A medium-strength, low-carbon alloy steel, 8620 contains good toughness and strength properties, along with good core strength. 8620 has a high case toughness and above average core toughness due to the nickel content. Additionally, it is the most widely used carburizing alloy steel. Typical uses include gears, cranks, shafting, axles, bushings, heavy duty pins, bolting, springs, hand tools, gears, and many other machinery parts.
Common Trade Names
UNS G86200, AISI 8620
Other Resources
Weight Calculator | Mill Test Reports
Products
Applications
- Gears
- Shafts
- Bushings
- Heavy Duty Pins
- Springs
- Hand Tools
Specifications
ASTM |
|---|
| A108 |
| Physical Properties 8620 | |||
| | |||
|---|---|---|---|
| Density | 0.284 lb/in3 | ||
| Ultimate Tensile Strength | 92 ksi | ||
| Yield Tensile Strength | 52 ksi | ||
| Shear Strength | 59 ksi | ||
| Shear Modulus | 11.6 ksi | ||
| Hardness Rockwell | Brinell | B89 | 183 | ||
| Elongation at Break Percentage | 26% | ||
| Modulus of Elasticity | 30,000 ksi | ||
| Reduction of Area Percentage | 60% | ||
| Poisson's Ratio | 0.29 | ||
| Machinability Percentage | 66% | ||
| Melting Point | 2,580-2,650 °F | ||
| Specific Heat | 1.14 x 10^-1 BTU/lb-°F | ||
| Thermal Conductivity | 323 BTU-in/hr-ft^2-°F | ||
|
Chemistry Information
|
|
Element |
Percentage |
| C | 0.18 - 0.23 |
| Cr | 0.4 - 0.6 |
| Fe | 96.9 - 98.02 |
| Mn | 0.7 - 0.9 |
| Mo | 0.15 - 0.25 |
| Ni | 0.4 - 0.7 |
| P | 0.035 max |
| Si | 0.15 - 0.35 |
| S | 0.04 max |
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