Product Overview – ASTM A312 TP310 Welded Pipes
ASTM A312 TP310 is an austenitic stainless steel grade containing significantly higher chromium and nickel compared to 304 and 309 grades. This enhanced composition provides excellent resistance to oxidation, scaling, and thermal fatigue.
TP310 welded pipes are manufactured by forming stainless steel strip into cylindrical shape and longitudinally welding through advanced TIG or automated welding processes. These pipes are primarily used in furnace components, radiant tubes, and petrochemical equipment exposed to very high temperatures.
Unlike standard stainless steel grades, SS 310 is selected where continuous service at extreme temperatures is required.
Standard & International Identification - ASTM A312 TP310 Welded Pipes
ASTM A312 TP310 Welded Pipe Specifications
| Manufacturing Type : | Welded / ERW |
| Available Sizes: | 1/8″ NB to 36″ NB |
| Schedules: | 5S, 10S, 40S, 80S |
| Length: | 6m, 12m, Custom Length |
| Finish: | Annealed & Pickled |
| End Type: | Plain End (PE), Beveled End (BE) |
| Testing : | Hydrostatic, Weld Seam Testing, PMI |
| Certification : | EN 10204 3.1 / 3.2 MTC |
| Dimensional compliance: | ASME B36.19M. |
All specifications are in accordance of ASTM A312 / ASME SA312 standards. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition of ASTM A312 TP310 Welded Pipe
(As per ASTM specification)
| Element | Max (%) |
|---|---|
| Carbon (C) | 0.25% |
| Manganese (Mn) | 2.00 % |
| Silicon (Si) | 1.00 % |
| Phosphorus (P) | 0.045 % |
| Sulfur (S) | 0.030 % |
| Chromium (Cr) | 24.0 – 26.0% |
| Nickel (Ni) | 19.0 – 22.0% |
| Iron (Fe) | Balance |
Note: The very high chromium and nickel content provides superior oxidation resistance.
Mechanical Properties of TP310 Welded Pipes
| Property | Minimum Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | 40% |
SS 310 maintains mechanical integrity even under extreme heat.
High Temperature Performance & Advantages of TP310 Welded Pipes
SS 310 welded pipes offer:
Compared to 309, 310 offers higher heat resistance and better structural stability at extreme temperatures.
Applications of ASTM A312 TP310 Welded Pipes
- 🔸Industrial furnaces
- 🔸Kilns and heat treatment equipment
- 🔸Burner components
- 🔸High temperature ducting
- 🔸Boiler baffles
- 🔸Thermal processing plants
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