Seamless Stainless Steel TP310 Tube
TP310 (UNS S31000) Seamless Stainless Steel Tube Manufacturer & Supplier |GZH China
GZH is a leading manufacturer and global supplier of TP310 (UNS S31000) seamless stainless steel tubes, based in the premier industrial zone of Wenzhou, China. Specifically engineered for high-temperature service, our TP310 tubing provides an elite combination of oxidation resistance, high-temperature strength, and structural stability in environments up to 1100°C (2010°F).
As a specialized 310 stainless steel seamless pipe manufacturer, we produce high-alloy austenitic tubing that meets rigorous international standards, including
Core Advantages of GZH TP310 Seamless Tubing
• Exceptional Oxidation Resistance: Maintains a protective surface scale in oxidizing atmospheres, preventing metal loss at extreme temperatures.
• Corrosion Resistance in Hot Media: Superior performance in mildly carburizing and nitriding environments compared to 304 or 316 grades.
• Structural Integrity: Our precision cold-drawing process ensures uniform wall thickness and concentricity, vital for high-pressure thermal applications.
• Advanced Metallurgy: Controlled chemistry minimizes the formation of the brittle sigma phase, extending the service life of furnace and boiler components.
What Is a Seamless Stainless Steel TP310 Tube?
Seamless Stainless Steel TP310 Tube (also called Seamless 1.4841 Stainless Steel Tube)is a high-temperature, corrosion-resistant tube crafted from a single, solid billet of a high-chromium and high-nickel austenitic stainless steel. Unlike welded tubes, it has no weld joint, ensuring superior structural integrity and reliability, especially under high-stress and high-temperature conditions. The"310"designation refers to a specific grade known for its exceptional oxidation resistance and strength at elevated temperatures. Its balanced composition provides it with a notable ability to resist oxidation up to 2000°F (1100°C) and to withstand high-temperature carburization. This makes it a top choice for demanding applications in industrial furnaces, power generation, and heat treatment.
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 Stainless Steel 310.
Table 1: Chemical Composition of Stainless Steel 310
The composition of Stainless Steel 310 is carefully balanced to achieve its superior high-temperature oxidation resistance and strength.
| Cr | Ni | Mn | Si | P | S | Fe | C |
| 24.00 - 26.00 | 19.00 - 22.00 | ≤ 2.00 | ≤ 1.50 | ≤ 0.045 | ≤ 0.030 | Bal | ≤ 0.25 |
Table 2: Typical Mechanical Properties of Stainless Steel 310
Stainless Steel 310 is specifically designed to maintain its strength and shape in high-stress, high-temperature environments.
| Property | Value (Annealed) |
| Tensile Strength | ≥ 520 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 217 HBW |
Table 3: Typical Physical Properties of Stainless Steel 310
These physical properties highlight the material's ability to perform reliably under a wide range of conditions.
| Property | Value |
| Density | 7.9 g/cm³ |
| Melting Point | 1400 - 1450 °C approx. |
| Thermal Expansion | 16.5 µm/m·°C (20-100°C) |
| Thermal Conductivity | 14.2 W/m·K (20°C) |
| Modulus of Elasticity | 200 GPa |
| Electrical Resistivity | 0.78 x 10⁻⁶ Ω·m (20°C) |
Table 4: The Standard of Stainless Steel Seamless Tube Size Tolerance Size Chart :
| Standard | OD(D) | Tolerance（MM) | Thickness(S) | Tolerance(MM) | Length | Tolerance | |
| MM | Common | High | MM | MM | |||
| EN 10216-5 HFD | 30≤D≤219.1（D2) | ±1.0% or ±0.5mm, whicever is the greater(取较大者) | T1, T≤4 | ±15% or ±0.6mm, whicever is the greater(取较大者) | L≤6M | +5/0 | |
| T2 | ±12.5% or ±0.4mm, whicever is the greater(取较大者) | ||||||
| 219.1≤D≤610 (D1) | ±1.5% or ±0.75mm, whicever is the greater (取较大者) | T≤0.05D | +22.5%/-15% | 6 | +10/0 | ||
| T1, 0.05D | ±15% or ±0.6mm, whicever is the greater(取较大者) | ||||||
| T2, T>0.09D | ±12.5% or ±0.4mm, whicever is the greater(取较大者) | L>12 | +by agreement/0 | ||||
| EN 10216-5 CFD | D3(D≤219.1) | ±0.75% or ±0.3mm, whicever is the greater(取较大者) | T3 | ±10% or ±0.2mm, whicever is the greater(取较大者) | |||
| D4(D≤219.1) | ±0.5% or ±0.mm, whicever is the greater(取较大者) | T4 | ±7.5% or ±0.15mm, whicever is the greater(取较大者) | ||||
| ASTM A213 HFD | D≤100 | +0.4/-0.8 | D<100,S≤2.4 | +40%/0 | HFD, all size | +5.0/0 | |
| +0.4/-1.2 | D<100,2.4 | +35%/0 | |||||
| +0.4/-1.6 | D<100,3.8 | +33%/0 | |||||
| D<100,S>4.6 | +28%/0 | ||||||
| 100 | +0.4/-1.2 | D>100, 2.4 | +35%/0 | ||||
| 200 | +0.4/-1.6 | D>100,3.8 | +33%/0 | ||||
| D>100,S>4.6 | +28%/0 | ||||||
| ASTM A213 CFD | D<25 | ±0.10 | D≤38.1 | +20%/0 | CFD, D<50.8 | +3.0/0 | |
| 25≤D≤40 | ±0.15 | ||||||
| 40 | ±0.20 | ||||||
| 50≤D<65 | ±0.25 | ||||||
| 65≤D<75 | ±0.30 | D>38.1 | +22%/0 | CFD, D≥50.8 | +5.0/0 | ||
| 75≤D≤100 | ±0.38 | ||||||
| 100 | +0.38/-0.64 | ||||||
| 200 | +0.38/-1.14 | ||||||
| ASTM A269 | D≤13 | ±0.13 | D≤13 | ±15% | D<38 | +3.2/0 | |
| 13 | ±0.13 | 13 | ±10% | ||||
| 38≤D<89 | ±0.25 | D>38 | +4.8/0 | ||||
| 89≤D<140 | ±0.38 | ||||||
| 140≤D<203 | ±0.76 | ||||||
| 203≤D<305 | ±1.01 | ||||||
| 305≤D<356 | ±1.26 | ||||||
| ASTM A270 | D<25 | ±0.13 | For weld pipe all size | ±12.5% | +3.0/0 | ||
| 25-50 | ±0.20 | ||||||
| 50-75 | ±0.25 | ||||||
| 75-100 | ±0.38 | For CD SMLS pipe D≤38.1 | +20%/0 | ||||
| 100-140 | ±0.38 | +5.0/0 | |||||
| 140-200 | ±0.75 | For CD SMLS pipe D>38.1 | +22%/0 | ||||
| 200-300 | ±1.25 | ||||||
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.
Manufacturing Process of Seamless Stainless Steel Tube
The manufacturing of a Seamless Stainless Steel Tube is a precise, multi-step process:
- Heating: A solid billet of Stainless Steel 310 is heated to a high temperature.
- Piercing: A piercing mill pushes a mandrel through the center of the heated billet to form a hollow shell.
- Drawing and Sizing: The hollow shell is then rolled and drawn to reduce its diameter and wall thickness to the desired dimensions.
- Heat Treatment: The tube is solution annealed to achieve its specified metallurgical properties and to ensure optimal performance.
- Finishing: The tube is cut to length, straightened, and subjected to rigorous testing to ensure it meets the highest standards for performance and reliability. This meticulous process ensures that every seamless Stainless Steel 310 tube is built to withstand the most extreme operating conditions.
