Bearing steel pipe
Premium Bearing Steel Pipe for Industrial Applications
Bearing steel pipe is a critical component in various mechanical systems, offering exceptional durability and performance under high-stress conditions. Our bearing steel pipes are manufactured to the highest quality standards, ensuring reliability in demanding industrial environments.
Product Specifications
Material Composition
- Carbon Content: 0.95-1.10%
- Chromium Content: 1.30-1.60%
- Silicon Content: 0.15-0.35%
- Manganese Content: 0.25-0.45%
- Phosphorus Content: ≤0.025%
- Sulfur Content: ≤0.015%
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥980 MPa |
| Yield Strength | ≥785 MPa |
| Elongation | ≥9% |
| Hardness (HRC) | 58-62 |
| Impact Toughness | ≥25 J/cm² |
Standard Sizes Available
| Outside Diameter (mm) | Wall Thickness (mm) | Length (m) |
|---|---|---|
| 10-100 | 1.5-10 | 1-12 |
| 101-200 | 2-15 | 1-12 |
| 201-400 | 3-20 | 1-12 |
Bearing Steel Pipe FAQ Section
Q: What makes bearing steel pipe different from regular steel pipes?
A: Bearing steel pipe is specifically engineered with higher carbon and chromium content to achieve superior hardness, wear resistance, and fatigue strength compared to standard steel pipes. The precise chemical composition and heat treatment processes ensure the material can withstand repeated stress cycles that would cause ordinary steel to fail prematurely.
Q: What surface treatments are available for bearing steel pipes?
A: Our bearing steel pipes can be supplied with various surface treatments including:
- Phosphating for corrosion resistance
- Black oxide coating for additional wear resistance
- Chrome plating for enhanced surface hardness
- Precision grinding for ultra-tight dimensional tolerances
Q: How do I select the right bearing steel pipe for my application?
A: Consider these factors when selecting bearing steel pipe:
1. Load requirements (static and dynamic)
2. Operating temperatures
3. Required surface finish
4. Corrosion resistance needs
5. Dimensional tolerances
Our technical team can assist in determining the optimal specification based on your specific application requirements.
Processing Capabilities
Our bearing steel pipes can be customized through various processing techniques:
- Precision cold drawing for tight dimensional control
- Turning and grinding for superior surface finish
- Heat treatment including quenching and tempering
- Non-destructive testing (UT, MT, ET)
- Custom cutting and machining
Industry Applications
Bearing steel pipe is widely used in:
- Automotive bearing systems
- Industrial machinery rotating components
- Aerospace hydraulic systems
- Power generation equipment
- Heavy construction machinery
- Precision manufacturing equipment
Quality Assurance
Every batch of our bearing steel pipe undergoes rigorous quality checks including:
| Test Type | Standard | Frequency |
|---|---|---|
| Chemical Analysis | ASTM E415 | 100% |
| Hardness Testing | ASTM E18 | 100% |
| Ultrasonic Testing | ASTM E213 | 100% |
| Dimensional Inspection | ISO 1101 | 100% |
| Mechanical Testing | ASTM A370 | Per heat |
Packaging Options
We offer multiple packaging solutions to protect bearing steel pipes during transportation:
- Plastic caps for end protection
- Waterproof wrapping
- Wooden crates for large quantities
- Steel strapping for bundle securing
- Custom packaging upon request
Additional Bearing Steel Pipe FAQ
Q: What is the typical lead time for bearing steel pipe orders?
A: Standard sizes are typically available within 2-3 weeks, while customized bearing steel pipes may require 4-6 weeks depending on specifications. We maintain certain inventory for popular sizes and can expedite production for urgent requirements.
Q: Can bearing steel pipe be welded?
A: Yes, but special precautions are needed due to the high carbon content. We recommend:
- Pre-heating to 150-200°C
- Using low-hydrogen electrodes
- Post-weld heat treatment when required
Our technical team can provide detailed welding procedure specifications.
Q: How does temperature affect bearing steel pipe performance?
A: Bearing steel pipes maintain excellent properties up to 150°C. Above this temperature, gradual softening occurs. For high-temperature applications (up to 500°C), we recommend special heat-resistant bearing steel grades with modified alloy compositions.
Environmental Considerations
Our bearing steel pipe production follows strict environmental guidelines:
- 100% recyclable material
- Eco-friendly surface treatment options
- Minimized production waste
- Energy-efficient manufacturing processes
Certifications
Our bearing steel pipes meet international quality standards including:
- ISO 9001:2015
- ASTM A295
- DIN 17230
- JIS G4805
- Customer-specific approvals