Guangzhou Changfeng Steel Co., LTD
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EN24 4340 1.6511 alloy tool Steel Round Bar for vane With Diameter 20-100mm
AISI 4340 steel is used in most industry sectors for applications requiring higher tensile/yield strength than 4140 steel can provide.
Some typical applications such as:
Aircraft Landing Gear
Automotive,
Oil and Gas Drilling,
Forging,
Warm and Cold Forming,
Machine Building,
Transfer Systems, like power transmission gears and shafts.
General engineering industries and structural use applications, such as: heavy duty shafts, gears, axles, spindles, couplings, pins, chucks, molds etc.
Chemical composition(%)
| C | Si | Mn | S | P | Cr | Mo | Ni |
| 0.37~0.44 | 0.15~0.35 | 0.5～0.8 | ≤0.035 | ≤0.035 | 0.60~0.90 | 0.15~0.25 | 1.25~1.65 |
Features:
Excellent hardenability, high toughness and good heat-resistance and fatigue-resistance.
Heat treatment:
Quenching 850 degrees; coolant; oil; tempering temperature of 600 degrees; coolant: water, oil;
Steel annealing or high temperature tempering supply state Brinell hardness GBW is less than or
equal to 269.
Product:
