High Pressure Seamless Steam Steel Boiler Pipes/Tubes
1. Product Description: High Pressure Seamless Steam Steel Boiler Pipes/Tubes are engineered to provide exceptional performance in steam generation systems. These pipes and tubes are seamless, ensuring uniform wall thickness and superior mechanical strength. Designed to withstand the rigors of high pressure and temperature, they are ideal for use in boiler systems where safety and efficiency are paramount.
2. Product Parameters:
Parameter | Description |
Material | Carbon and Alloy Steel (Seamless) |
Standard | ASME SA210, SA213, DIN 17175, GB/T5310, etc. |
Size Range | Various diameters and wall thicknesses as per relevant standards |
Length | Standard lengths, customizable upon request |
Ends | Plain ends, beveled ends, threaded, or socket-weld ends |
Surface Treatment | As-rolled, annealed, or normalized |
3. Mechanical Properties:
Property | Typical Requirements |
Tensile Strength | ≥415 MPa (60,000 psi) to ≥620 MPa (90,000 psi) depending on grade |
Yield Strength | ≥205 MPa (30,000 psi) to ≥415 MPa (60,000 psi) depending on grade |
Elongation | ≥20% in 50 mm (2 in) or 4D, whichever is greater |
Hardness | Varies depending on heat treatment and specific grade |
4. Chemical Composition:
Element | Typical Range (%) for Carbon Steel | Typical Range (%) for Alloy Steel |
Carbon | 0.15 - 0.30 | 0.10 - 0.25 |
Manganese | 0.30 - 1.00 | 0.30 - 1.00 |
Chromium | - | 0.50 - 13.00 (depending on grade) |
Molybdenum | - | 0.20 - 2.00 (depending on grade) |
Phosphorus | ≤ 0.025 | ≤ 0.025 |
Sulfur | ≤ 0.025 | ≤ 0.025 |
5. Product Uses:
- Steam Generation: Utilized in boilers for generating high-pressure steam for power generation and industrial processes.
- Superheater and Reheater Applications: Used in superheaters and reheaters to increase the temperature and efficiency of steam.
- Heat Exchangers: Suitable for high-pressure heat exchangers in various industries.
- Pressure Vessels: Ideal for construction of high-pressure vessels in petrochemical, refining, and other industries.
6. Product Grade Standards:
- ASME SA210 and SA213: These standards cover seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes.
- DIN 17175: A German standard that specifies the technical requirements for seamless alloy steel tubes for high-temperature and high-pressure service.
- GB/T5310: A Chinese standard for high-pressure boiler seamless steel tubes.
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