Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of sae4320h forged alloy steel round bar in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.
SAE4320H Forged Alloy Steel Round bar according ASTM A304
Chemical composition:
C: 0.17-0.23
Si: 0.15-0.35
Mn: 0.4-0.7
Cr: 0.35-0.65
Mo: 0.2-0.3
Heat treatment: Normalizing, Annealing, Quenching, Tempering, Hardening and tempering, Seasoning, surface hardening, carburizing.
Specification: Plate, Sheet, Coil, Flat bar, Round bar
Size: Round bar: 10-1200mm
Tube: OD: 4-410mm, with wall thickness ranging from 1-35mm
Mechanical Properties:
| Properties | Conditions | ||
|---|---|---|---|
| T (°C) | Treatment | ||
| Density (×1000 kg/m3) | 7.7-8.03 | 25 | |
| Poisson's Ratio | 0.27-0.30 | 25 | |
| Elastic Modulus (GPa) | 190-210 | 25 | |
| Tensile Strength (Mpa) | 1158 | 25 | oil quenched, fine grained, tempered at 425°C |
| Yield Strength (Mpa) | 1034 | ||
| Elongation (%) | 15 | ||
| Reduction in Area (%) | 53 | ||
| Hardness (HB) | 335 | 25 | oil quenched, fine grained, tempered at 425°C |
hermal Properties
| Properties | Conditions | ||
|---|---|---|---|
| T (°C) | Treatment | ||
| Thermal Conductivity (W/m-K) | 42.7 | 100 | |
| Specific Heat (J/kg-K) | 477 | 50-100 | |
Physical Properties
| Quantity | Value | Unit |
|---|---|---|
| Thermal expansion | 16 - 17 | e-6/K |
| Thermal conductivity | 16 - 16 | W/m.K |
| Specific heat | 500 - 500 | J/kg.K |
| Melting temperature | 1370 - 1400 | °C |
| Service temperature | 0 - 500 | °C |
| Density | 8000 - 8000 | kg/m3 |
| Resistivity | 0.7 - 0.7 | Ohm.mm2/m |
Hot Tags: sae4320h forged alloy steel round bar, China, manufacturers, suppliers, factory, Iron Nickel Cobalt Based Alloy, Astm H12 Steel Bar Skd62 Steel Rod, 86CRMOV7 Steel Bar, SAE4320H Forged Alloy Steel Round Bar, 39nicrmo3 properties, 18crnimo7 6 Alloy Forged Steel Round Bar