SCr440 Lost Wax Investment Castings
SCR440 is a commonly used alloy structural steel, also known as AISI 5140 or SNCM439 steel under ASTM A29/A29M-04 standards.
Product Introduction
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SCR440 lost wax investment casting |
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Item |
Material |
Production Process |
Sintering Temperature |
Mold |
Custom |
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SCR440 lost wax investment casting |
SCR440 |
Molten mold casting |
1380℃ |
To be customized |
Yes |
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Chemical composition |
(C): 0.38-0.43% (Si): 0.15-0.35% (Mn): 0.60-0.90% (P): no more than 0.035% (S): not more than 0.040% (Cr): 0.70-0.90% |
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Available Materials |
Carbon steel, alloy steel, aluminum alloy, low -carbon stainless steel, titanium alloy (TI, TC4), copper alloy, high temperature alloy (718, 713) |
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Smoothness |
Dimensional accuracy |
Product density |
Appearance treatment |
Appropriate weight |
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Roughness 1～5μm |
(±0.1%～±0.5%) |
7.8g/CM³ |
According to customer requirements |
3g～4kg) |
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SCR440 is a commonly used alloy structural steel, also known as AISI 5140 or SNCM439 steel under ASTM A29/A29M-04 standards.
SCR440 has high strength, good hardenability, and heat treatment properties. The high carbon content enables SCR440 to obtain good hardness and strength after heat treatment, making it suitable for applications with high strength requirements such as various mechanical parts.
SCR440 Physical Properties
- Density: 7.85 g/cm³
- Melting point: 1420-1460℃
- Thermal conductivity: 49.8 W/(m·K)
- Linear expansion coefficient: 12.4×10^-6/℃ (20-100℃)
The mechanical properties of SCR440 depend on the heat treatment state. After normalizing and quenching, its hardness can reach HRC58-62. The following are mechanical performance indicators under some common heat treatment conditions:
- Yield strength: ≥640 MPa
- Tensile strength: ≥780 MPa
- Elongation: ≥10%
- Impact toughness: ≥78 J/cm^2
SCR440 lost wax investment is suitable for manufacturing mechanical parts with high strength requirements, such as gears, bearings, crankshafts, connecting rods, etc. The steel can change its structure and properties through heat treatment, such as normalizing, quenching, tempering, and other processes to meet the requirements of different applications.
In short, SCR440 is a commonly used alloy structural steel with high strength, good hardenability, and heat treatment properties, and is suitable for manufacturing various high-strength mechanical parts.
Detection Systems
Copper Silica Sol Investment Casting
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