ASTM A387 Grade 11 Class 1 is in the standard ASTMA-387/SA-387M .A387 Grade 11Class 1 is a kind of Cr-Mo-alloy steel plates material used to fabric high temperature pressure vessels.A387 have ten grades or levels.

ASTM A204 Grade B steel is a kind of material for boiler and pressure vessel steel. So, ASTM A204 Grade B steel is used above all for manufacturing boilers, pressure vessels and pipes transporting hot liquids.

A204 this property is based on it's Mo composition. ASTM A-204/A-204M A204 has three grades or levels-- Grade A/B/C. A204 steel grade specification covers molybdenum alloy, intended particularly of welded boilers and others pressure vessels steel plate i

Our inventory includes stainless steel pipes and tubes in many grades including SS304, SS304L, SS321, SS321H, SS316L, SS347H, SS317L, Duplex 2205/UNS 31803, Super Duplex 2507, 904L and stainless steel 446.