High-quality Carbon Steel Pipes For Low And Medium-pressure Boilers
Gb 3087 grade 10 seamless pipes, compliant with gb 3087-2008, are high-quality carbon structural steel pipes designed for low and medium-pressure boilers, offering excellent plasticity and weldability for heating surfaces and steam pipelines.
High-quality Carbon Steel Pipes For Low And Medium-pressure Boilers
Gb 3087 grade 10 seamless pipes, compliant with gb 3087-2008, are high-quality carbon structural steel pipes designed for low and medium-pressure boilers, offering excellent plasticity and weldability for heating surfaces and steam pipelines.
GB 3087 Grade 10 seamless pipes, compliant with GB 3087-2008, are high-quality carbon structural steel pipes designed for low and medium-pressure boilers operating at pressures ≤5.9 MPa. These pipes are manufactured using seamless processes, either hot-rolled (extruded, expanded) or cold-drawn (rolled), ensuring uniformity in quality and strength. They are suitable for heating surfaces with wall temperatures ≤480°C and headers or steam pipes with wall temperatures ≤430°C, as specified by the standard.
Available in outer diameters from 33 mm to 323 mm and wall thicknesses from 3.2 mm to 21 mm, GB 3087 Grade 10 seamless pipes offer excellent mechanical properties, including high strength and superior plasticity. The manufacturing process involves electric furnace, oxygen converter, or open-hearth smelting, with tube blanks produced via hot rolling, continuous casting, or steel ingots. Normalizing heat treatment at 900–940°C enhances mechanical properties, while rigorous testing (hydraulic, flattening, flaring, and optional ultrasonic) ensures defect-free surfaces and compliance with GB/T 699 for chemical composition.
Compared to Grade 20 or alloy steel grades like 15CrMo, Grade 10 offers better plasticity and weldability, making it ideal for manual welding (e.g., using E4303 or E4315 electrodes) or gas-shielded welding without preheating or post-weld heat treatment. These pipes are widely used in industrial boilers, heat exchangers, and locomotive boilers for applications such as superheater tubes, steam pipelines, and headers. Surface finishes like varnishing or galvanizing prevent rust, and pipes are delivered in hot-rolled or heat-treated conditions with plain, beveled, or threaded ends.
GB 3087 Grade 10 seamless pipes provide a cost-effective, reliable solution for low and medium-pressure boiler systems, ensuring durability and performance in demanding industrial environments.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.07–0.13 |
| Silicon (Si) | 0.17–0.37 |
| Manganese (Mn) | 0.38–0.65 |
| Phosphorus (P) | ≤0.035 |
| Sulfur (S) | ≤0.035 |
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 335–475 |
| Yield Strength (MPa) | ≥195 |
| Elongation, min (%) | ≥24 |
| Impact Energy (J, 0°C) | ≥27 |
Excellent cold-forming capabilities for complex shapes.
No preheating or post-weld treatment needed.
Handles up to 480°C for heating surfaces.
Uniform structure for high-pressure reliability.
Varnished or galvanized for rust protection.
Affordable for low/medium-pressure applications.
| Feature | GB 3087 Grade 10 | GB 3087 Grade 20 | 15CrMo (GB 5310) |
|---|---|---|---|
| Material Type | Carbon Steel | Carbon Steel | Low-Alloy Steel |
| Temperature Range | ≤480°C (heating surface) | ≤510°C (heating surface) | 450–650°C |
| Tensile Strength (MPa) | 335–475 | 410–550 | 440–640 |
| Yield Strength (MPa) | ≥195 | ≥245 | ≥235 |
| Weldability | Excellent | Good | Moderate |
| Applications | Low/medium-pressure boilers | Low/medium-pressure boilers | High-pressure boilers |
| Key Advantage | High plasticity | Higher strength | High thermal strength |
| Grade | Standard | Country |
|---|---|---|
| 10 | GB 3087 | China |
| ST35.8 | DIN 17175 | Germany |
| STB340 | JIS G3461 | Japan |
A curated list of long-tail keywords for GB 3087 Grade 10 seamless pipes, covering specifications, applications, and material properties.
Note: GB 3087 Grade 10 seamless pipes comply with GB 3087-2008 and GB/T 699 standards. For detailed specifications, refer to the standards or contact a certified supplier.
GB/T 3087 seamless steel pipes are essential for low and medium-pressure boiler systems requiring high strength and thermal stability.
Used for heating and steam pipelines in industrial boiler systems.
Applied in superheating steam and flue tubes for locomotives.
Used in steam and fluid transport in power plants.
Utilized in low and medium-pressure heat exchanger systems.
Supports fluid transport in chemical processing plants.
Used in various low and medium-pressure boiler applications.
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