SHANGHAI UNITE STEEL
One-stop Brand Service Provider For Globle Machinery And Petrochemical Enterprise And Special Steel Distributor.
Add to Cart
Alloy Modified Hot Rolled Steel Bar Delivery Condition Quenched & Tempered
1.Chemical composition :
| Carbon | 0.38 - 0.43 |
| Chromium | 0.7 - 0.9 |
| Iron | Balance |
| Manganese | 0.6 - 0.8 |
| Molybdenum | 0.2 - 0.3 |
| Nickel | 1.65 - 2 |
| Phosphorus | 0.035 max |
| Silicon | 0.15 - 0.3 |
| Sulphur | 0.04 max |
2. Process: EAF+LF+VD ( necessary) UT+ Rolled+Heat Treatment (optional)
3.Dlivery condition: hot rolled, annealing ton ≤ HB269
4.Surface conditions : scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
5. Mechanical Properites :
| tensile strength σb (MPa) | min 980(100) |
| elongation δ5 (%) | min 12 |
| reduction of areaψ (%) | min 55 |
| impact absorbed energy Akv (J) | min 78 |
| notched bar impact strength αkv(J/cm2) | min98(10) |
| yield point σs (MPa) | min835(85) |
6. Applications: Used for manufacture big sized important Quenched-and-Tempered parts which request good toughness and high strength.such as top load shaft in heavy-duty machinery;
For steam turbine shaft, vane, and heavy-load transmission parts, fastening piece, crankshaft, gears etc. with diameter is biger than 250mm
7.Physical Data
| Density (lb / cu. in.) | 0.28 |
| Specific Gravity | 7.8 |
| Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) | 0.116 |
| Melting Point (Deg F) | 2600 |
| Thermal Conductivity | 21 |
| Mean Coeff Thermal Expansion | 6.6 |
| Modulus of Elasticity Tension | 33 |