Used primarily for their stress/rupture properties, P22 can be held at high temperatures with high pressure and can also have a strong resistance to rupturing. In addition, 2 1/4% chrome can be used for elevated temperatures, creep and corrosion resistance process and service. Typical temperatures applications range from -20° to 1100° F
Availability – P22
Seamless Pipe: 1/2” – 24”
Butt-Weld Fittings: 1/2” – 24”
Flanges: 1/2” – 24” Pressure
Fittings: 1/8” – 4”
Specifications – P22
| ASTM / ASME | A335, A182, A234 |
Chemical Composition – P22
| C | Cr | Mn | Mo | P | S | Si |
|---|---|---|---|---|---|---|
| Max | Max | Max | Max | Max | ||
| .05% – .15% | 1.90% – 2.60% | .30% – .60% | .87% – 1.13% | 0.040% | 0.040% | 0.50% |
Typical Applications – P22
- Main steam and hot reheat systems
- Process heater tubing
Tensile Requirements – P22
Tensile Strength (KSI): 60
Yield Strength (KSI): 30
KSI can be converted to MPA (Megapascals) by multiplying by 6.895.