ASTM A213 T12 Alloy Steel Pipes
ASTM A213 T12 alloy steel pipes (UNS K11562) are seamless ferritic alloy steel tubes specially designed for high-temperature and high-pressure service in boilers, heat exchangers, and superheater systems. With a strong chromium-molybdenum composition, T12 pipes offer excellent oxidation resistance, mechanical strength, and long-term thermal stability, making them ideal for demanding industrial environments.
Key Features
- High thermal stability for elevated-temperature service
- Excellent oxidation and creep resistance
- Seamless construction ensures durability and leak-free performance
- Superior corrosion and scaling resistance
- Suitable for boilers, heat exchangers, and superheaters
Specification
| Property | Details |
|---|---|
| Standard | ASTM A213 / ASME SA213 |
| Grade | T12 |
| UNS Number | K11562 |
| Product Type | Seamless Ferritic Alloy Steel Pipes |
| Manufacturing Process | Cold Drawn / Hot Finished |
| Surface Finish | Annealed / Bright Annealed |
| Ends | Plain / Beveled |
| Length | Single, Double & Custom |
| Size Range | 1/4″ to 24″ NPS |
Equivalent Grades
- UNS K11562
- WNR 1.7335
- DIN 13CrMo4-4
- BS 3604 Grade 622
Available Sizes
- Outside Diameter: 6 mm to 101.6 mm
- Wall Thickness: 1 mm to 12.7 mm
- Length: Up to 12 meters (custom length available)
ASTM A213 T12 /ASME SA213 T12 Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.05 – 0.15 |
| Manganese (Mn) | 0.30 – 0.60 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.025 |
| Silicon (Si) | 0.50 – 1.00 |
| Chromium (Cr) | 0.80 – 1.25 |
| Molybdenum (Mo) | 0.44 – 0.65 |
ASTM A213 T12 /ASME SA213 T12 Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 179 HB |
Physical Properties
| Property | Value |
|---|---|
| Density | 7.70 g/cm³ |
| Thermal Conductivity | 39–41 W/m·K |
| Modulus of Elasticity | 200 GPa |
| Melting Range | 1425–1510 °C |
Types
- Seamless Alloy Steel Pipes
- Boiler Tubes
- Superheater Tubes
- Heat Exchanger Tubes
Application
- Power Plants
- Boilers & Superheaters
- Petrochemical Processing
- Heat Exchanger Systems
- Refinery Operations
- High-Temperature Industrial Piping
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