Alloy Steel Seamless Pipe
Material and Specification
The GB/T 8162 42CrMo Alloy Steel Seamless Pipe is a type of seamless steel pipe made from 42CrMo steel, which is a high-quality alloy structural steel. This pipe conforms to the GB/T 8162 standard, which specifies the technical requirements for seamless steel tubes for structural purposes.
Key Features
High strength and toughness
Good hardenability
Excellent performance in high-temperature conditions
Superior wear resistance
Suitable for high-stress applications
Chemical Composition
| Element | Composition (%) |
| C | 0.38-0.45 |
| Si | 0.17-0.37 |
| Mn | 0.50-0.80 |
| Cr | 0.90-1.20 |
| Mo | 0.15-0.25 |
| P | ≤0.035 |
| S | ≤0.035 |
Mechanical Properties
| Properties | Value |
| Tensile strength (MPa) | ≥1080 |
| Yield strength (MPa) | ≥930 |
| Elongation (%) | ≥12 |
| Reduction of area (%) | ≥45 |
Physical Properties
| Properties | Value |
| Density (g/cm³) | 7.85 |
| Melting point (℃) | 1420-1440 |
Process Performance
The GB/T 8162 42CrMo Alloy Steel Seamless Pipe exhibits excellent process performance, including good weldability, machinability, and cold and hot working properties.
Steel Grade
The steel grade 42CrMo is a widely used alloy steel grade known for its high strength and good mechanical properties.
Application
This seamless pipe is commonly used in various industries such as machinery, automotive, and oil and gas for components requiring high strength, toughness, and resistance to wear and tear.
Possible Alternative Grades
Some alternative grades to GB/T 8162 42CrMo Alloy Steel Seamless Pipe include ASTM A519 4140, DIN 1.7225, and JIS SCM440, which offer similar properties and applications.
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