ASTM A213 T5 Seamless Alloy Steel Heat Exchanger & Boiler Tubes
Our ASTM A213 Grade T5 (ASME SA213 T5) seamless low-alloy steel tubes are specifically engineered to thrive under demanding, high-temperature, high-pressure, and corrosive industrial environments. Containing a balanced addition of Chromium (4.00% - 6.00%) and Molybdenum (0.45% - 0.65%), these ferritic steel tubes provide superior thermal conductivity, improved creep resistance, and resistance to high-temperature oxidation compared to standard carbon steels.
Whether operating in power station superheaters, petrochemical cracking furnaces, or heavy-duty shell-and-tube heat exchangers, our ASTM A213 T5 tubes ensure optimum thermal efficiency and extended service life.
- High-pressure boilers and superheater coils
- Shell and tube heat exchangers
- Petrochemical cracking furnaces and reheaters
- Power generation plants and steam turbines
- Oil refinery process units
All ASTM A213 Grade T5 tubes are supplied in full compliance with global quality and safety standards. The alloy profile is carefully refined to balance high-tensile strength with optimal ductility and thermal efficiency.
| Element | Specification Limit (%) |
|---|---|
| Carbon (C) | 0.15 max |
| Manganese (Mn) | 0.30 – 0.60 |
| Phosphorus (P) | 0.025 max |
| Sulfur (S) | 0.025 max |
| Silicon (Si) | 0.50 max |
| Chromium (Cr) | 4.00 – 6.00 |
| Molybdenum (Mo) | 0.45 – 0.65 |
Our T5 alloy tubes undergo rigorous heat treatment (Full Annealing, Isothermal Annealing, or Normalizing and Tempering) to meet exact mechanical benchmarks.
| Property | Value (Imperial) | Value (Metric) |
|---|---|---|
| Tensile Strength | ≥ 60 ksi | ≥ 415 MPa |
| Yield Strength | ≥ 30 ksi | ≥ 205 MPa |
| Elongation (2 in. or 50 mm) | ≥ 30% | ≥ 30% |
| Hardness (Max) | 163 HBW / 85 HRB | 170 HV |
We provide a wide spectrum of seamless tubing configurations designed to meet specific engineering criteria:
- Outer Diameter (OD): 6.35 mm to 127 mm (1/4 in. to 5 in.)
- Wall Thickness (WT): 0.9 mm to 12.7 mm (0.035 in. to 0.500 in.)
- Schedules / SWG: SWG 10 to 20, SCH 40, SCH 80, SCH XS, and custom minimum/average wall thicknesses.
- Length Options: Single Random (5 - 7 m), Double Random (10 - 12 m), or custom cut-to-length dimensions up to 22.5 meters.
- Tube Ends: Plain End (PE), Beveled End (BE) for welding, or Threaded.
To guarantee maximum structural integrity in critical pressure systems, every batch of ASTM A213 T5 tubes undergoes comprehensive testing prior to dispatch:
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Non-Destructive Testing (NDT):
- 100% Eddy Current Testing or Hydrostatic Pressure Testing per ASTM A1016.
- Ultrasonic Testing (UT) available upon request for high-pressure installations.
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Mechanical & Physical Testing:
- Tensile & Yield Testing: Verifies load capacities under high operational pressures.
- Flattening Test: Ensures weldability and absence of micro-cracking under stress.
- Flaring / Drift Expansion Test: Assures uniform wall thickness and ductility during tube sheet expansion.
- Hardness Testing: Confirms proper heat treatment execution.
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Metallurgical Analysis:
- Grain size verification and PMI (Positive Material Identification) testing.
- Intergranular corrosion resistance and microstructural evaluation.
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Surface Treatment & Finishing:
- Supplied with passivated, bright-annealed, or anti-rust varnished surface protection.
- Full Material Test Reports (MTR) provided in accordance with EN 10204 3.1 / 3.2.
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