Year1
- 产品规格：
- 齐全
Characteristics
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, poor weldability, no temper brittleness during heat treatment, but low hardenability in water. The critical diameter is * and has 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.
Chemical composition
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Mechanical properties
Tensile strength:
Yield strength:
Elongation Length (%):
Area reduction (%):
Impact energy:
Impact toughness value (/):
Hardness: Unheated annealed steel
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. There is 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
When used to manufacture general punches, the batch size is smaller than the number of pieces. The material to be punched is soft mild steel and the sheet is thick, so the die used is zinc-based alloy.
Suitable for manufacturing mold parts that require high wear resistance, dynamic load and large impact.
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