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What is ASME SA387 Grade 11 Class 2?

ASME SA387 Grade 11 Class 2 (ASTM A387 Grade 11 CL2) is a specification for chromium-molybdenum alloy steel plates intended for use in elevated temperature applications, commonly associated with pressure vessels and heat exchangers. Nominal chrome content at 1.00% to 1.50%, and Moly 0.45% to 0.65% for SA387 GRADE 11 material.

What is ASME SA387 Grade 11 Class 1?

The ASTM A387 Alloy Steel Grade 11 CL 1 Plate has very high oxidation and corrosion resistance due to the presence of chromium. Additionally, it has given better-annealed conditions corrosion resistance. Outstanding temperatures, tensile strength, and yield strength are provided by molybdenum content.

Chemical Composition (%) of A387 GR.11 steel

A387 GR.11 CL.1 and A387 GR.11 CL.2 steel have the same chemical composition requirement. Below are the details of A387 GR.11 steel plate.

Mechanical properties of A387GR.11 plates

For material A387 GR.11 CL.2, “Class” for two classes of tensile strength levels. 387 GR.11 CL.1 and A387 GR.11 CL.2 steel has different tensile requirements. Below is the detailed mechanical properties for differences between A387 GR.11 CL.2 and A387GR.11 CL. 1.