What Is a Seamless Stainless Steel TP310 Tube?
TP310 Seamless Stainless Steel Tube is supplied for high chromium-nickel content for oxidation resistance at elevated temperature. The size range shown (OD 6–257 mm; WT 0.5–35 mm) is the overall capability across this product family, not a per-grade commitment. Confirm the specific OD × WT × length combination for the ordered grade in the quotation. The governing specification must be stated on the purchase order: ASTM A213 / ASME SA213. Chemistry, mechanical properties, heat treatment, dimensional tolerance, NDT and certification must be reported against the ordered standard and material heat; do not treat typical values as guaranteed acceptance limits.Key Features and Advantages of TP310 Seamless Stainless Steel Tube
Seamless Stainless Steel TP310 Tube offer a unique combination of benefits that make them invaluable in demanding high-temperature industries: Outstanding High-Temperature Oxidation Resistance: The high chromium and nickel content provides superior resistance to oxidation and scaling in high-temperature air. Excellent Creep-Rupture Strength: It maintains high tensile and creep-rupture strength at elevated temperatures, ensuring long-term structural stability under high-temperature loads. Resistance to Carburization: The alloy is highly resistant to carburization, which is crucial for applications in high-temperature furnaces and reducing atmospheres. High Pressure and Temperature Tolerance: The seamless construction and robust material allow the tube to safely handle high internal pressures and extreme temperatures. Good Weldability: The alloy can be readily welded using standard methods, and its balanced composition helps prevent hot cracking.Product Specifications and Data
To provide a comprehensive overview of this high-performance material, here are the detailed technical specifications and performance data for Seamless Stainless Steel TP310 Tube.Equivalent Grade
| UNS | Common grade name | EN material number | EN steel name | JIS grade | GB/T grade |
|---|---|---|---|---|---|
| S31000 | TP310 | Not confirmed | Not confirmed | Not confirmed | Not confirmed |
Chemical Composition
The composition of Stainless Steel 310 is carefully balanced to achieve its superior high-temperature oxidation resistance and strength.| C | Si | Mn | P | S | Cr | Ni | Fe |
|---|---|---|---|---|---|---|---|
| ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 24.00–26.00 | 19.00–22.00 | Bal |
Data source: ASTM A213/A213M Table 1, TP310S (UNS S31008) row — heat-analysis acceptance limits: C ≤ 0.08, Mn ≤ 2.00, P ≤ 0.045, S ≤ 0.030, Si ≤ 1.00, Cr 24.0–26.0, Ni 19.0–22.0, Mo ≤ 0.75. ASTM A213 covers TP310S (S31008) and TP310H (S31009); there is no plain “TP310” (S31000) row. Confirm against the ordered edition and the MTC.
| Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|
| ≥ 515 MPa | ≥ 205 MPa | ≥ 35% | ≤ 192 HBW / 200 HV / 90 HRB |
Typical Physical Properties
These physical properties highlight the material’s ability to perform reliably under a wide range of conditions.| Density | Melting Point | Thermal Expansion | Thermal Conductivity | Modulus of Elasticity | Electrical Resistivity |
|---|---|---|---|---|---|
| 7.9 g/cm³ | 1400 – 1450 °C approx | 16.5 μm/m·°C (20-100°C) | 14.2 W/m·K (20°C) | 200 GPa | 0.78 × 10⁻⁶ Ω·m (20°C) |
Note: Typical values for reference only — not acceptance limits. Physical and mechanical properties are reported on the MTC against the ordered standard, product form and condition.
Size Tolerance Chart (mm)
| Specified Outside Diameter (OD) (Inches) | Permissible Variations in OD (± Inches) |
|---|---|
| 1⁄2 to 1 | ±0.005 |
| Over 1 to 1-1⁄2 | ±0.008 |
| Over 1-1⁄2 to 2 | ±0.010 |
| Over 2 to 2-1⁄2 | ±0.012 |
| Over 2-1⁄2 to 3-1⁄2 | ±0.014 |
| Over 3-1⁄2 to 5 | ±0.020 |
Tolerance basis: permitted variations per the governing specification stated on this page and the applicable general-requirements standard (ASTM A1016 / ASME SA1016) for the ordered product form; the wall-thickness and length variations in this section follow the same basis.
| Specified Outside Diameter (OD) (Inches) | Specified Wall Thickness (WT) (Inches) | Permissible Variation (± Inches) |
|---|---|---|
| 1⁄2 to 1 (Inclusive) | 0.025 to 0.065(Inclusive) | ±0.010 |
| Over 0.065to 0.134 (Inclusive) | ±0.012 | |
| Over 1 to 1-1⁄2 (Inclusive) | 0.025 to 0.065 (Inclusive) | ±0.010 |
| Over 0.065 to 0.134 (Inclusive) | ±0.012 | |
| Over 1-1⁄2 to 2 (Inclusive) | 0.025 to 0.049 (Inclusive) | ±0.011 |
| Over 0.049 to 0.083 (Inclusive) | ±0.012 | |
| Over 0.083 to 0.148 (Inclusive) | ±0.014 | |
| Over 2 to 2-1⁄2 (Inclusive) | 0.032 to 0.065 (Inclusive) | ±0.013 |
| Over 0.065 to 0.109 (Inclusive) | ±0.015 | |
| Over 0.109 to 0.165 (Inclusive) | ±0.017 | |
| Over 2-1⁄2 to 3-1⁄2 (Inclusive) | 0.032 to 0.165 (Inclusive) | ±0.020 |
| Over 0.165 to 0.220 (Inclusive) | ±0.025 | |
| Over 3-1⁄2 to 5 (Inclusive) | 0.083 to 0.165 (Inclusive) | ±0.025 |
| Over 0.165 to 0.220 (Inclusive) | ±0.030 |
Length Tolerance
- For Specific Cut Lengths, the standard tolerance is +1⁄8 in. [3 mm], -0 in. [0 mm].
Common Applications of Seamless Stainless Steel TP310 Tube
The combination of high-temperature strength and exceptional oxidation resistance of Seamless TP310 Tube makes them a preferred choice for:Heat Treating Industry
Used in radiant tubes, muffles, retorts, and other furnace parts.Power Generation
In boiler components, reheater tubes, and steam generator tubing.Chemical and Petrochemical Processing
For furnace tubes, burner components, and other high-temperature applications.Cement Industry
For kiln components and other high-temperature process equipment.Frequently Asked Questions
What sizes are available for TP310 seamless tube?
The overall range is OD 6–257 mm; WT 0.5–35 mm. Requirements outside this range are reviewed against mill capability on request.
Which specification governs TP310 seamless tube?
ASTM A213 / ASME SA213 is the governing specification for TP310 seamless tube. The edition in force at order time is stated on the quotation and purchase order; chemistry, mechanical properties, heat treatment, dimensions and testing are reported against the ordered standard and material heat.
What inspection documents are provided?
Each order is documented with a mill test certificate stating heat chemistry and mechanical test results. EN 10204 3.1 certification, hydrostatic testing, eddy-current or ultrasonic inspection and PMI are performed when specified in the purchase order.
Technical review: page data reviewed by the Xinzhe technical desk on 2026-09-27. Chemistry acceptance limits are compiled from the governing ASTM/ASME specification stated on this page; mechanical and physical values are typical reference data and are not acceptance guarantees. Values must be confirmed against the standard edition in force at order time and the material test certificate.
