P Grades Article
ASME SA335 / ASTM A335, Chrome-Moly pipe is a seamless ferritic Alloy-Steel Pipe produced in nominal or minimum wall thickness for high temperature service. Pipe ordered to this specification shall be suitable for bending, flanging, similar forming operations and for fusion welding. ... A335 Grade P11 1-1/4% Chrome; ½% Moly: SA335 Grade P11 1 ...