Used primarily for Nace applications where sour environmentals under high temperature and pressure are expected. Chromium of 9% gives corrosion resistance similar to 400 series stainless steel, but provides higher tensile properties at hotter temperatures than 405 or 410 stainless. In addition, 9% chromium can be used for elevated temperatures and corrosion resistant process. Typical temperatures applications range from -20° to 1200° F.
Availability – P9
Seamless Pipe: 1/2” – 24”
Butt-Weld Fittings: 1/2” – 24”
Flanges: 1/2” – 24” Pressure
Fittings: 1/8” – 4”
Specifications – P9
| ASTM /ASME | A335, A182, A234 |
Chemical Composition – P9
| C | Cr | Mn | Mo | P | S | Si |
|---|---|---|---|---|---|---|
| Max | Max | Max | Max | Max | ||
| 0.15% | 8.00% – 10.00% | .30 – .60% | .90% – 1.10% | 0.030% | 0.030% | .25% – 1.00% |
Typical Applications – P9
- P5Fluid cat crackers
- P5Fluid cat crackers
Tensile Requirements – P9
Tensile Strength (KSI): 60
Yield Strength (KSI): 30
KSI can be converted to MPA (Megapascals) by multiplying by 6.895.