A387 Grade 11 steel plate is made with 1.25% chromium and 0.5% molybdenum, conforming to ASTM/ASME A387 standard processes, and is specifically designed for high-temperature welded boilers and pressure vessels. The presence of chromium and molybdenum as alloying elements gives A387 Grade 11 steel plate better heat and corrosion resistance, allowing it to be used in high-temperature environments.
Except for grades 21L, 22L, 91, and 911, other grades offer two tensile strength grades.
Grades 91 and 911 offer two tensile strength grades. We are the world's largest supplier of ASTM A387 Grade 11 Grade 2 steel plate.
ASTM A387 Grade 11 Class 2 Steel Plate Grade and Specification
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Chemical Composition (Typical Values)
Steel plate processing services
Description
Flame cutting / Plasma cutting
Customized according to drawings
Normalizing, tempering, stress relief
Sandblasting, coating
In addition to the processing services mentioned above, as the world's largest supplier of ASTM A387 Grade 11 Grade 2 steel plates, we support custom sizes of steel plates.
We can supply
Thickness: 5mm to 150mm
Width: 1500mm to 2500mm
Length: 6,000mm to 12,000mm
Frequently Asked Questions
Q: What is the difference between ASTM A387 Grade 11 and SA387?
A: ASTM and ASME standards are basically the same. ASTM A387 is used for general industrial applications, while ASME SA387 is used for Boiler Pressure Vessel Specification (BPVC) certification equipment. The composition and performance requirements are the same.
Q: How to choose between Class 1 and Class 2?
A: Class 1 has moderate strength and good toughness, suitable for general pressure vessels; Class 2 has higher strength, suitable for scenarios with more stringent pressure requirements.
Q: What are the standard dimensions for 10mm steel plates?
A: Common specifications are 1500/2000/2500mm Γ 6000/8000/12000mm, and custom lengths are also available.
We specialize in producing 10mm thick ASTM A387 Grade 11 low-carbon steel plates and offer competitive prices. With an experienced technical team, professional processing personnel, and a rigorous quality inspection system, we can provide a wide range of products at highly competitive prices and with reliable quality. We are committed to continuous improvement and innovation to meet your needs. We look forward to creating a better future together! We pursue higher and newer development goals, continuously strengthen our internal capabilities, and implement scientific and standardized management.
