Applied Alloys’ extensive range includes ASTM A335 / SA335 P11 chrome-moly steel pipe, WP-11 fittings, F-11 flanges, and corresponding valves.
A335 P11 / UNS K11597 seamless ferritic alloy-steel pipe for high-temperature and high-pressure service. P11 provides enhanced toughness, strength, hardness, and wear resistance often required in power plants, space craft, nuclear reactors, and turbines. Hot finished or cold drawn pipe is available in full lengths or cut to size for immediate shipping. Other grades available: P5, P9, P22, P91, P92, and material certified to ASTM A213.
P11 Pipe, Flanges, Fittings & Valves
Chrome Alloy Seamless Pipe
Seamless ASTM A335 / ASME SA335 P-11 / UNS # K11597 / 1 ¼ Chrome. Bored Pipe Seamless ASTM A369 / SA369
- ½” – 30″ diameter
- STD, 40, XH, 60, 80, 100, 120, 140, 160, XXH
- Wall thickness up to 4″ thick
Alloy BW Fittings
ASTM A234 / ASME SA234 WP-11
- ½” – 30″ diameter
- STD, 40, 60, 80, 100, 120, 140, 160 XXH
- Wall thickness up to 4″ thick
Alloy Forged Fittings
ASTM A182 / ASME SA182 F-11
- 3000# / 6000# / 9000#
- Socketweld & Threaded
- Shapes & Straights
Alloy Flanges
ASTM A182 / ASME SA182 / F-11
- ½” – 30″ diameter
- 150# – 1500#
- Slip-on, Weld Neck, Socketweld
- Threaded & Blind
- Raised Face Ring Type Joint ( RTJ )
Cast Alloy Steel Valves
ASTM A217 / ASME SA217 O-Port Through Conduit, Ball, Gate, Globe, & Check Valves
- WC-6 ( 1 1/4% Chrome )
- WC-9 ( 2 1/4% Chrome )
- C-5 ( 5% Chrome )
- C-12 ( 9% Chrome )
- C-12 ( 9% Chrome + Vanadium )
Forged Alloy Steel Valves
ASTM A182 / ASME SA182 / F11
- Gate, Globe & Check Valves
- Custom-made O-Port Valves
P11 Pipe Chemical Requirements
| Carbon | 0.05% – 0.15% |
| Manganese | 0.30% – 0.60% |
| Phosphorus, max | 0.025% |
| Sulfur, max | 0.025% |
| Silicon | 0.50% – 1.00% |
| Chromium | 1.00% – 1.50% |
| Molybdenum | 0.44% – 0.65% |
P11 Pipe Specification
| Tensile Strength, min, PSI, (MPa) | Yield Strength, min, (MPa) |
| 60,000 (415) | 30,000 (205) |

