ASME SA312 TP310S Stainless Steel Seamless Tube For Oil , Gas
1. Overview:
ASME SA312 TP310S is a specification standard for austenitic stainless steel seamless pipes and tubes primarily used in high-temperature and corrosive environments. This grade is part of the 310/310S family, known for excellent oxidation resistance and heat-resisting properties. Being seamless, these tubes are manufactured without any welded seams, offering superior strength, uniformity, and reliability under high-pressure and high-temperature conditions.
2. Material Composition:
The chemical composition of TP310S ensures enhanced high-temperature performance while maintaining corrosion resistance. Typical composition is as follows (approximate values):
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | 2.0 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.03 max |
| Silicon (Si) | 1.5 max |
| Chromium (Cr) | 24–26 |
| Nickel (Ni) | 19–22 |
| Iron (Fe) | Balance |
3. Mechanical Properties:
The seamless tube provides excellent strength and ductility, making it suitable for high-stress applications. Typical mechanical properties:
| Property | Value |
|---|---|
| Tensile Strength | 515–720 MPa |
| Yield Strength | 205 MPa min |
| Elongation | 30% min |
| Hardness (HRB) | ≤ 95 |
4. Key Features:
5. Applications:
ASME SA312 TP310S seamless tubes are widely used in industries where high temperature and corrosion resistance are crucial:
