P11 (Cl. 1, 2 & 3)

(UNS K11597) (1 - 1/4% Cr • 1/2% Mo)

AVAILABILITY:

Seamless Pipe: 1/2”-24” STD | sch40 | XS | sch80 | XXS | sch160 | ASTM / ASME A/SA-335-P11
Butt-Weld Fittings: 1/2”-24” STD | sch40 | XS | sch80 | XXS | sch160 | ASTM / ASME A/SA-234-WP11
Flanges: 1/2”-24” |  150# | 300# | 600# | 900# | 1500# | ASTM / ASME A/SA-182-F11
Pressure Fittings: 1/4”-4” 3000# | 6000# | ASTM / ASME A/SA-182-F11
Plate: 1/4”-2 1/2” Thick | ASTM / ASME A/SA-387
Bar: 1/2"-6" | ASTM / ASME A/SA-182-F11

DESCRIPTION:

“Low alloy” refers to steel with an alloy composition of 1 to 1 1/2% chromium and molybdenum. The small amount of chromium and molybdenum differentiates the alloy from carbon steel. Alloy elements strengthen the product for use in temperatures and pressures that would cripple carbon steel. Typical temperatures applications range from -20° to 1050° F.

CHEMICAL COMPOSITION, %