Chromium-molybdenum steels of ASTM A387 Grade 11 Class 2 and ASME SA387 Grade 11 Class 2 produced by GNEE
GNEE specializes in providing global high-quality steel production, customization, and sales services for industries such as petroleum, natural gas, and petrochemicals. Our steel varieties cover numerous different grades and classes of steel.
This article will specifically introduce two chromium-molybdenum steel specifications: ASTM A387 Grade 11 Class 2 and ASME SA387 Grade 11 Class 2. What is the difference between ASTM and ASME?
Before we outline what these specifications cover, it is crucial to understand the difference between the two standard publishers. ASME is the American Society of Mechanical Engineers, while ASTM is the American Society for Testing and Materials.
What do ASTM A387 Grade 11 Class 2 and ASME SA387 Grade 11 Class 2 cover?
These specifications cover chromium-molybdenum alloy steel plates, specifically used in pressure vessels and welded boilers operating at high temperatures. Other applications of steel plates that meet these specifications include heat exchangers and pipelines.
This grade has a nominal chromium content of 1.25% and a nominal molybdenum content of 0.50%. The high chromium content endows the steel with excellent oxidation resistance and corrosion resistance.
The grade indicates the tensile strength that the steel plate needs to meet this specification. ASTM A387 Grade 11 Class 2 and ASME SA387 Grade 11 Class 2 require a tensile strength of 75 to 100 ksi (515 to 690 MPa) and a minimum yield strength of 43 ksi (310 MPa).
The maximum thickness of these steel plates is only limited by the ability of the composition to meet the required mechanical property specifications.
GNEE ASTM A387 Grade 11 Class 2 and ASME SA387 Grade 11 Class 2
GNEE stocks a variety of steel plates certified to ASTM A387 Grade 11 Class 2 and ASME SA387 Grade 11 Class 2.
All plates are pre-tested in accordance with strict standards, and if more specific testing is required, we can arrange for third-party testing.
Our steel plates are sourced from GNEE's steel mills in China, and we can ship our products to all parts of the world.
If you want to know about certain products, you can send an email to info@gneesteels.com
People also ask
Q: What is SA 387 Grade 11 Class 2 equivalent to?
A: Sa 387 Gr 11 Equivalent Material is the ASME SA387 in the US markets with the European Union having modules in 13CrMoSi5-5 grade. The Sa 387 Gr 11 Cl 2 Equivalent Material is the SA387-11-2 of the ASME and ASTM standard.
Q: What is ASTM A387 GR 11 material?
A: ASTM A387 Gr.11 CL.2 Plates | Conquest Steel and Alloys
ASTM A387 GR 11 CL 2 Plates is designed with the composition of chemicals such as carbon, silicon, phosphorous, chromium, sulfur, molybdenum, and manganese.
Q: What is the temperature range for SA 387 GR 11?
A: In the lower end of the temperature range SA 387 Gr 11 (1150 °F min tempering temperature) , and SA 387 Gr 22 (1250 °F min tempering temperature) are used. These grades can be specified in either class 1 or 2 and can also be provided in the Normalized & Tempered or Quenched and Tempered.
Q: What is the difference between SA 387 GR 11 cl1 and cl2?
A: The difference between SA 387 Grade 11 Class 1 and Class 2 Plate lies in their mechanical properties. However, they both have the same chemical composition. The tensile strength and yield strength of class 2 material is higher than that of class 1, whereas the elongation for class 1 is higher compared to class 2.
