Sizes and supply range
- Elbows, tees, reducers and caps
- SCH 40 through XXS
- Seamless and welded options by size
- Matching P11 pipe and F11 flanges
Chromium-molybdenum butt-weld fittings for P11 alloy-steel boiler, steam and high-temperature piping.

Steel Gems supplies ASTM A234 WP11 Alloy Steel Fittings for industrial maintenance, projects and export requirements. Every offer is reviewed against the stated material grade, dimensional standard, size, schedule or pressure class, quantity, testing scope and delivery requirement.
For a technically complete quotation, send the product description, applicable specification, size, thickness or schedule, end connection, quantity, required MTC, inspection agency and delivery location.
WP11 fittings are commonly used with ASTM A335 P11 pipe and F11 flanges, subject to the design code.
Documentation can be supplied according to the material standard and purchase specification.
Steel Gems supports material certification, heat-number traceability, NABL laboratory testing, NDT and third-party inspection for ASTM A234 WP11 Alloy Steel Fittings when required by the purchase specification.