What is ASTM A312
ASTM A312 TP310S stainless steel pipe is a high-alloy austenitic stainless steel pipe specifically designed for extreme high-temperature and oxidation-resistant applications. With a high chromium (24–26%) and nickel (19–22%) content, TP310S provides excellent resistance to oxidation and scaling at temperatures up to 1100°C, making it one of the best choices for furnaces, kilns, and thermal processing equipment.
Compared with standard grades such as TP304, TP316, and even TP321, ASTM A312 TP310S offers superior heat resistance and structural stability under cyclic heating conditions, ensuring long service life in harsh environments. As a professional TP310S pipe supplier, we provide full-size seamless and welded pipes, compliant with ASME SA312 standards, supporting global industrial projects.
Chemical Composition
| Element | Content |
|---|---|
| C | ≤ 0.08 |
| Mn | ≤ 2.00 |
| Si | ≤ 1.50 |
| Cr | 24.0 – 26.0 |
| Ni | 19.0 – 22.0 |
| P | ≤ 0.045 |
| S | ≤ 0.030 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 217 HB |
Specifications & Dimensions
| Parameter | Metric | Imperial |
|---|---|---|
| Outer Diameter | 6 mm – 610 mm | 1/8" – 24" |
| Wall Thickness | 0.5 mm – 50 mm | SCH 5S – SCH XXS |
| Length | 5.8m / 6m / 11.8m / 12m | 20ft / 40ft |
| Type | Seamless / Welded / EFW | - |
| Standard | ASTM A312 | ASME SA312 |
Key Features & Advantages
Excellent oxidation resistance up to 1100°C
Superior heat resistance under continuous and cyclic conditions
High chromium and nickel content for enhanced durability
Good corrosion resistance in high-temperature environments
Resistant to thermal fatigue and scaling
Applications
ASTM A312 TP310S pipes are widely used in:
Industrial Furnaces & Kilns
Heat Treatment Equipment
Petrochemical Processing
Power Generation Plants
Thermal Processing Systems
ASTM A312 TP310S vs TP304 vs TP321 vs TP347
| Grade | Temperature Resistance | Key Feature |
|---|---|---|
| TP310S | ⭐⭐⭐⭐⭐ (Up to 1100°C) | Extreme heat resistance |
| TP347 | ⭐⭐⭐⭐ | Intergranular corrosion resistance |
| TP321 | ⭐⭐⭐⭐ | Titanium stabilized |
| TP304 | ⭐⭐⭐ | General purpose |
Inspection & Quality Assurance
PMI Testing (100%)
Hydrostatic / Eddy Current Testing
Ultrasonic Testing (UT)
Chemical & Mechanical Analysis
Third-party inspection: SGS / BV / TUV
Product Delivery Standards
Export wooden cases / bundles
Plastic caps for pipe ends
Clear marking & traceability
Delivery: 7–25 days
Worldwide shipping support
Why Choose Our TP310S Pipes
Rich experience in heat-resistant alloys export
Full size & custom production capability
Competitive factory pricing
Fast delivery & stable supply
Technical support for high-temperature projects
FAQ
What is ASTM A312 TP310S used for?
It is used in high-temperature environments such as furnaces, kilns, and heat treatment equipment.
How high temperature can TP310S withstand?
TP310S can resist oxidation at temperatures up to 1100°C under continuous service.
Is TP310S better than 304?
Yes, TP310S offers much higher heat resistance, while 304 is for general applications.
What is the difference between 310 and 310S?
310S has lower carbon content, which improves weldability and reduces carbide precipitation.
Contact Us
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