A213 T5 Chrome Moly Seamless Tubes
ASTM A213 T5 is a chromium-molybdenum alloy seamless steel tube specified by the standards ASTM A213/A213M and ASME SA213/SA213M. Designed specifically for high-temperature and high-pressure service conditions, it is primarily used in critical equipment such as boilers, superheaters, and heat exchangers, offering exceptional heat resistance and creep resistance.
Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of a213 t5 chrome moly seamless tubes in China, also supports customized service with low price. Welcome to wholesale discount a213 t5 chrome moly seamless tubes for sale here from our factory. Contact us for free sample.
ASTM A213 T5 seamless steel pipe, a critical material for boilers, superheaters, and heat exchangers, plays a vital role in ensuring the safe and reliable operation of core industrial sectors such as energy and petrochemicals. This chromium-molybdenum alloy steel tube delivers exceptional durability and performance under high-temperature and high-pressure conditions, thanks to its precisely balanced chemical composition and mechanical properties.
According to the ASTM A213/A213M standard, Grade T5 steel contains 4–6% chromium (Cr) and 0.45–0.65% molybdenum (Mo). This specific alloying strategy provides:
Excellent creep resistance at temperatures up to 593°C, enabling long-term structural stability under continuous stress
Enhanced oxidation and corrosion resistance in steam and high-temperature gas environments
Good weldability and fabricability, making it suitable for complex heat transfer systems
Superior microstructural stability, minimizing degradation during thermal cycling
A213 T5 chromium-molybdenum alloy steel pipes supplied by GNEE Group are available in outer diameters from 1/2 inch to 36 inches (DN25 to DN900) and wall thicknesses up to SCH 160. These pipes offer outstanding oxidation resistance, creep strength, and long-term structural stability at high temperatures, making them ideal for demanding applications in power generation, petrochemical, and high-pressure boiler systems. For pricing details, please contact GNEE Group directly.
A213 T5 Chrome Moly Alloy Heater Tubes Chemical Composition
| Composition | C | Si | Mn | P | S | Cr | Mo |
|---|---|---|---|---|---|---|---|
| Min | - | - | 0.3 | - | - | 4 | 0.45 |
| Max | 0.15 | 0.5 | 0.6 | 0.025 | 0.025 | 6 | 0.65 |
A213 T5 Chrome Moly Seamless Tubes Mechanical properties
| Tensile Strength σb Mpa |
Yield point σs Mpa |
Elongation after fracture or elongation δ % |
Hardness HBW |
|---|---|---|---|
| ≥415 | ≥205 | ≥30 | ≤163 |
Manufacturing Process of ASME SA213 T5 Seamless Steel Pipes
1. Steel Ingot Preparation
Select raw materials (low-alloy steel)
Smelt and refine to achieve precise chemical composition (Cr: 4–6%, Mo: 0.45–0.65%, C≤0.15%)
Cast into high-purity ingots
2. Pipe Forming
Hot Rolling: Heat ingots to 1,100–1,250°C, then pierce and roll into hollow shells
Cold Rolling/Drawing: For precision dimensions, process through mandrel mills or cold-drawing benches
3. Heat Treatment
Normalizing: Heat to 900–980°C → Air-cool to refine grain structure
Tempering: Reheat to 675–725°C → Cool to optimize toughness (HBW ≤163)
4. Quality Control
| Step | Method | Standard Requirement |
|---|---|---|
| Dimensional Check | Laser gauging | OD/WT tolerance per ASME SA213 |
| Non-Destructive Test | Ultrasonic (UT) / Eddy Current (ET) | Zero critical defects |
| Mechanical Test | Tensile/Hardness testing | σ≥415 MPa, σs≥205 MPa, δ≥30%, HBW≤163 |
| Hydrostatic Test | Water pressure ≥70 MPa | No leakage or deformation |
Key Process Advantages
Microstructural Stability: Ferrite-pearlite matrix resists creep below 593°C
Surface Integrity: Scale-free finish after pickling/passivation
Performance Validation: 100% tested for high-pressure service in boilers/heat exchangers
Applications of ASME SA213 T5 Seamless Steel Pipes in Industrial Sectors
Petroleum & Chemical Industry:
Widely used for transporting high-temperature, high-pressure, and corrosive media such as oil and gas, steam, and chemicals, where resistance to creep, oxidation, and sulfidation is critical.
Power Generation Industry:
Employed in fossil-fuel power plants and nuclear power stations for:
High-pressure steam pipelines
Reheater and superheater tubes
Flue gas ducting systems
Operating reliably under sustained temperatures up to 593°C and pressures exceeding 15 MPa.
Shipbuilding:
Utilized in marine boiler systems, exhaust gas recovery units, and auxiliary steam lines, where compact design and long-term structural integrity under cyclic thermal loads are essential.
Metallurgy & Heavy Machinery:
Applied in:
Heat treatment furnaces
Continuous casting equipment
High-temperature process piping in steel and non-ferrous metal production
A213 T5 Alloy Steel Heat Exchanger Tube Factory
A213 T5 Low Alloy Steel Superheater Tube Packaging and shipping
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