42CrMo Alloy Steel Boiler Tube Alloy Seamless Steel Pipe Tube For Boiler
42CrMo Alloy Steel Boiler Tube Alloy Seamless Steel Pipe Tube For Boiler
Material
42CrMo is a chromium-molybdenum alloy steel that offers excellent strength, toughness, and wear resistance. It is widely used in manufacturing seamless steel pipes for high-pressure boilers and other heavy-duty engineering applications due to its superior mechanical properties and thermal stability.
Specification
- Standard: ASTM A213, ASTM A179, API 5L, EN 10216, GB/T 8163
- Type: Seamless Alloy Steel Tubes
- Outer Diameter: Typically ranges from 10mm to 530mm (custom sizes available)
- Wall Thickness: Varies with application, typically 2mm to 50mm
- Length: Usually 6m or customized lengths as per requirement
- Heat Treatment: Quenching and tempering to enhance mechanical properties
Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.38 - 0.45 |
| Silicon (Si) | 0.17 - 0.37 |
| Manganese (Mn) | 0.50 - 0.80 |
| Chromium (Cr) | 0.90 - 1.20 |
| Molybdenum (Mo) | 0.15 - 0.30 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
Mechanical Properties
| Property | Typical Value | Test Standard |
|---|---|---|
| Tensile Strength (Rm) | 750 - 1000 MPa | GB/T 8162 |
| Yield Strength (Rp0.2) | ≥ 600 MPa | GB/T 8162 |
| Elongation (A%) | ≥ 12 % | GB/T 8162 |
| Impact Toughness (KV) | ≥ 27 J (at room temperature) | GB/T 232-2002 |
| Hardness | 229 - 269 HB | ASTM E18 |
Key Features
- High tensile strength and excellent toughness
- Good fatigue and wear resistance
- Superior performance at elevated temperatures
- Outstanding weldability and machinability after heat treatment
- Resistant to thermal deformation and pressure variations
- Suitable for high-pressure, high-temperature applications
Application
- High-pressure boiler tubes in thermal power plants
- Superheater and reheater tubes in boiler systems
- Petrochemical and chemical industry piping
- Pressure vessels and heat exchangers
- Automotive and heavy machinery components requiring high strength steel tubes
Equivalent Grades
| Country/Standard | Equivalent Grade |
|---|---|
| ASTM | A335 P22 |
| DIN (Germany) | 1.7715 |
| JIS (Japan) | SCM 435 |
| GB (China) | 42CrMo |
| EN | 42CrMo4 |
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
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