ASTM A213 T12 Alloy Steel Pipe Superheater and Heat-Exchanger Tubes
ASTM A213 T12 Alloy Steel Pipe Superheater and Heat-Exchanger Tubes
Specification
ASTM A213 T12 alloy steel pipe designed for high-temperature and high-pressure applications like boilers, superheaters, and heat exchangers. It is a chrome moly steel, meaning it contains chromium and molybdenum for enhanced strength, oxidation resistance, and thermal properties up to 550°C. The material is known for its good processing and welding characteristics, making it suitable for bending and flanging.
| American Standard | Standard Name |
| A213 / A213M | Seamless Ferritic and Austenitic Alloy-steel Boiler,Superheater and Heat-Exchanger Tubes |
ASTM A213 T12 Alloy Steel Pipe Chemical Composition
Sources American Standard A213 / A213M TABLE 1 Chemical Composition Limits, % , for Low Alloy Steel
| Grade | UNS Designation |
C | Mn | P | S | Si | Cr | Mo |
| T12 | K11562 | 0.05-0.15 | 0.30-0.61 | 0.025 | 0.025B | 0.5 | 0.80-1.25 | 0.44-0.65 |
| B lt is permissible to order T2 and T12 with a sulfur content of 0.045 max. See 16.3. | ||||||||
ASTM A213 T12 Alloy Steel Pipe Mechanical Properties
Sources American Standard A213 / A213M TABLE 4 Tensile and Hardness Requirements
| Grade Low Aloy Steels: |
UNS Designation |
TensileStrength. min, ksi [MPa] |
Yield Strength ,min, ksi [MPa] |
Elongationin 2 in. or 50 mm. min, %B.C |
HardnessA | |
| Brinell/Vickers | Rockwell | |||||
| T12 | K11562 | 60 [415] | 32 [220] | 30 | 163 HBW/170 HV | 85 HRB |
ASTM A213 T12 Alloy Steel Pipe Heat Treatment
Sources American Standard A213 / A213M TABLE 3 Heat Treatment and Grain Size Requirements A
| Grade Ferritic Alloy Steels |
UNS Designation |
Heat Treatment Type | Subcritical Annealingor TemperingTemperature,min or range °F [°C] |
| T12 | K11562 | full or isothermal anneal | - |
| normalize and temper | - | ||
| subcritical anneal | 1200 to1350 [650 to 730] |
ASTM A213 T12 Alloy Steel Pipe Manufacturing Proces
ASTM A213 T12 Alloy Steel Pipe Application
- Power Generation Boilers
- Petrochemical & Refining Industries
- Components Exposed to Sulfur Corrosion
- High-Temperature Piping Systems
- Thermal Processing Equipment
ASTM A213 T12 Alloy Steel Pipe Packing & Loading
a. 1/2"-2"Plain end with black oil paint, caps both ends, bundles with loading belt.
b. 2"-4"Beveled end with black oil paint, caps both ends, bundles with loading belt.
c. 10"-20"Beveled end with black oil paint, caps both ends, loose packed in to container.
→Alloy Steel Pipes is transported in containers
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