Year1
- 产品规格：
- 齐全
Characteristics
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Medium carbon and high strength carbon structural steel has high strength and hardness after quenching. The steel has medium machinability, medium cold deformation, low plasticity and poor weldability. Heat treatment There is no temper brittleness but low hardenability. The critical diameter in water is * and there is a tendency to crack during water quenching. This steel is usually used after heat treatment such as normalizing or quenching and tempering or high frequency surface quenching.
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Chemical composition
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.~
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.~
≤
≤< br/> ≤≤
≤
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Mechanical properties
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Tensile strength σ: ≥
Yield strength σ: ≥
Elongation δ (%): ≥
Area reduction ψ (%): ≥
Impact energy: ≥
Impact toughness value α (/): ≥
Hardness: Unheat treated ≤ annealed steel ≤
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Critical point temperature (approximate value) ℃℃r =℃r =℃
Normalizing specification temperature ℃±℃ air cooling .
General quenching and tempering specifications: Quenching temperature ℃ ± ℃ water, oil cooling Tempering temperature ℃ ± ℃ water, oil cooling.
Suitable for manufacturing mechanical parts with low dynamic load, low impact load and good wear resistance, such as forged gears, shaft friction discs, machine tool spindles, engine spindles, rollers, tie rods, spring washers, etc.
Characteristics and applications = Without heat treatment: ≤ Heat treatment: Normalizing Impact energy: ≥ High strength, poor plasticity and toughness, medium machinability, poor weldability, and a tendency to form cracks during water quenching. It is generally used in the normalizing and tempering state for parts that require higher strength, wear resistance or elasticity, and small dynamic and impact loads, such as gears, rolls, machine tool spindles, connecting rods, secondary springs, etc.
Typical Application
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When used to manufacture general punches, the batch size is smaller than the number of pieces. The punched material is a soft low carbon steel sheet with a thickness of δ<, so the die used is a zinc-based alloy.
Suitable for manufacturing mold parts that require high wear resistance, dynamic load and large impact.
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