The GB/T3087-2022 standard specifies the requirements for low and medium pressure boiler tubes, which are widely used in industrial and domestic boilers for transporting low and medium-pressure fluids. These seamless steel tubes are essential for constructing superheated steam pipes, boiling water pipes, large smoke pipes, and small smoke pipes in boiler systems.
The most common materials for these tubes are No. 10 and No. 20 carbon steel, known for their excellent mechanical properties, weldability, and durability under high-temperature and high-pressure conditions.
1. Material Composition & Mechanical Properties
No. 10 Steel Boiler Tubes
- Carbon Content: 0.07–0.14%
- Silicon (Si): 0.17–0.37%
- Manganese (Mn): 0.35–0.65%
- Phosphorus (P) & Sulfur (S): ≤0.035%
- Mechanical Properties:
- Yield Strength: ≥205 MPa
- Tensile Strength: 335–475 MPa
- Elongation: ≥24%
Applications: Ideal for low-pressure boiler components requiring high toughness and weldability, such as water pipes and low-temperature steam conduits.
No. 20 Steel Boiler Tubes
- Carbon Content: 0.17–0.24%
- Silicon (Si): 0.17–0.37%
- Manganese (Mn): 0.35–0.65%
- Phosphorus (P) & Sulfur (S): ≤0.035%
- Mechanical Properties:
- Yield Strength: ≥245 MPa
- Tensile Strength: 410–550 MPa
- Elongation: ≥20%
Applications: Suitable for medium-pressure boiler systems, especially in high-temperature zones like superheater tubes and furnace-adjacent heating surfaces.
✅ High Strength & Durability – Withstands steam pressure and thermal stress.
✅ Excellent Weldability – Ensures secure and leak-proof joints.
✅ Corrosion Resistance – Long service life in demanding environments.
✅ Wide Application Range – Used in power plants, chemical industries, and heating systems.
The GB/T3087-2022 low and medium pressure boiler tubes provide reliable, high-performance solutions for fluid transportation in boiler systems. Whether you need No. 10 steel for flexibility and weldability or No. 20 steel for higher strength, these tubes ensure safe and efficient boiler operation.
For more details on GB/T3087 boiler tubes, contact us today to find the best solution for your industrial or domestic boiler needs!
Keywords: GB/T3087-2022, low and medium pressure boiler tube, No. 10 steel boiler tube, No. 20 steel boiler tube, seamless boiler pipe, industrial boiler tubes, carbon steel boiler pipes, high-temperature boiler tubes, China boiler tube supplier.
Post time: Apr-07-2025
