SAE 8620 Alloy Steel Round Bar Specification
Standards | Designation |
---|---|
ASTM | B 473 |
Length | Diameter |
---|---|
100mm to 6000mm | 5mm to 500mm |
SAE 8620 Alloy Steel Round Bar Chemical Composition
Min. % | Max. % | |
Carbon | 0.17 | 0.23 |
Silicon | 0.10 | 0.40 |
Manganese | 0.60 | 0.95 |
Nickel | 0.35 | 0.75 |
Chromium | 0.35 | 0.75 |
Molybdenum | 0.15 | 0.25 |
Phosphorous | 0 | 0.04 |
Sulphur | 0 | 0.04 |
SAE 8620 Alloy Steel Round Bar Physical Properties
DENSITY (G/CM 3) | 8.08 |
DENSITY (LB/IN 3) | 0.292 |
MELTING POINT (°C) | 1425 |
MELTING POINT (°F) | 2600 |
SAE 8620 Alloy Steel Round Bar Mechanical Properties
Typical Mechanical Properties For Core – Carburised and Oil Quenched at 840 oC | ||||||||||||||||||
Section Size | 11 mm | 30 mm | 63 mm | |||||||||||||||
Tensile Strength Mpa | Min | 980 | 780 | 690 | ||||||||||||||
Max | 1270 | 1080 | 930 | |||||||||||||||
Yield Strength Mpa | Min | 785 | 590 | 490 | ||||||||||||||
Elongation 5.65√S0 % | Min | 9 | 10 | 11 | ||||||||||||||
Charpy Impact J | Min | 41 | 41 | |||||||||||||||
Hardness HB | Min | 290 | 235 | 205 | ||||||||||||||
Max | 375 | 320 | 275 | |||||||||||||||
Hardness RC | Min | 31 | 23 | 16 | ||||||||||||||
Max | 41 | 35 | 29 | |||||||||||||||
Typical Mechanical Properties – As Rolled | ||||||||||||||||||
Tensile Strength Mpa | 820 | |||||||||||||||||
Yield Strength Mpa | 590 | |||||||||||||||||
Elongation on 5.65√S0 % | 22 | |||||||||||||||||
Hardness | HB | 240 | ||||||||||||||||
Rc | 24 |