ASTM A387 Grade 91 Class 2 Steel Plate

Sai Steel & Engineering Co. specializes in providing SA 387 Grade 91 Class 2 Steel Plates for various industries requiring high performance at elevated temperatures and pressures. With years of experience, we offer competitive prices, superior quality, and excellent customer service, catering to diverse markets worldwide.

We are proud to serve industries such as oil & gas, chemical processing, power generation, and nuclear energy with our exceptional steel products.

What is SA 387 Grade 91 Class 2 Steel Plate?

SA 387 Grade 91 Class 2 Steel Plate is a chromium-molybdenum alloy steel primarily used in high-temperature and high-pressure applications, such as in boilers, pressure vessels, and heat exchangers. Its outstanding resistance to creep, oxidation, and high-temperature degradation makes it an ideal choice for industries like oil and gas, petrochemical, and nuclear power plants.

This steel is known for its excellent weldability and superior mechanical properties, which enable it to withstand harsh working environments, such as extreme thermal cycling and high-pressure conditions.

Chemical Composition of SA 387 Grade 91 Class 2 Steel Plate:

Element Chemical Composition (%)

Carbon (C) 0.08 – 0.12

Manganese (Mn) 0.30 – 0.60

Phosphorus (P) 0.020 max

Sulfur (S) 0.010 max

Silicon (Si) 0.20 – 0.50

Chromium (Cr) 8.00 – 9.50

Molybdenum (Mo) 0.85 – 1.05

Nickel (Ni) 0.40 max

Vanadium (V) 0.18 – 0.25

Columbium (Cb) 0.06 – 0.10

Nitrogen (N) 0.030 – 0.070

Aluminium (Al) 0.02

Titanium (Ti) 0.01

Zirconium (Zr) 0.01

Mechanical Properties of SA 387 Grade 91 Class 2 Steel Plate:

Property Requirement

Tensile Strength 85 to 110 ksi (585 to 760 MPa)

Yield Strength (0.2% offset) Min. 60 ksi (415 MPa)

Elongation (in 2 in. / 50mm) Min. 18%

Reduction of Area Min. 45% (measured on round specimen)

These mechanical properties ensure that SA 387 Grade 91 Class 2 Steel Plates are highly durable and reliable in demanding environments where high strength, resistance to thermal fatigue, and excellent weldability are required.

Applications of SA 387 Grade 91 Class 2 Steel Plate:

SA 387 Grade 91 Class 2 Steel Plate is used in various critical industries, including:

Boilers and Pressure Vessels: For manufacturing heat exchangers, pressure vessels, reactors, and other high-temperature equipment.

Petrochemical Industry: Commonly used in pipelines, storage tanks, and other structures that operate under high pressure and temperature conditions.

Chemical Industry: Used in reactors, distillation columns, and other processing equipment that require both strength and corrosion resistance.

Nuclear Power Plants: In reactors, piping, and other critical infrastructure requiring high-temperature and high-pressure performance.

Power Generation: Suitable for components exposed to high heat in steam and gas turbines, as well as other power plant equipment.

Pulp and Paper Industry: For high-pressure steam boilers, heat exchangers, and other industrial equipment.

Oil & Gas Industry: Essential for pipelines, pressure vessels, and refineries that operate under extreme conditions.

Equivalents:

SA 387 Grade 91 Class 2 is equivalent to several international standards:

ASTM A387 Grade 91 Class 2

ASME SA387 Grade 91 Class 2

BS 1501: 620B, 621B, 622B

EN 10028: 16Mo3, 13CrMo45, 10CrMo910

DIN Equivalent: SA387-91-2

SA 387 Grade 91 Class 2 Steel Plate Packing & Shipping:

At Sai Steel & Engineering Co., we ensure the safe and efficient delivery of SA 387 Grade 91 Class 2 Steel Plates worldwide. Our packaging is tailored to meet customer specifications and to ensure the safe transport of our products across international borders. Packaging options include:

Wooden Cases

Pallets

Custom Packaging Solutions

We provide all necessary shipping documentation for customs clearance and deliver from our manufacturing facility directly to your site.

Why Choose Sai Steel & Engineering Co.?

Global Supplier Network: We supply SA 387 Grade 91 Class 2 Steel Plates to numerous regions, including Saudi Arabia, Kuwait, Qatar, UAE, South America, Brazil, India, Egypt, Australia, South Africa, and more.

Competitive Pricing: We offer affordable prices for high-quality steel products, making us a trusted partner for long-term cooperation.

ISO 9001:2008 Certification: Our products meet the highest quality standards, ensuring that you receive reliable, durable materials.

Technical Expertise: With a team of qualified professionals and advanced technology, we can meet the unique needs of your project.

Customer Satisfaction: We pride ourselves on offering personalized service, ensuring that each customer’s requirements are met with precision and care.

Conclusion:

Sai Steel & Engineering Co. is your reliable partner for SA 387 Grade 91 Class 2 Steel Plates. Our products meet the highest industry standards and are backed by years of experience in supplying high-quality steel for demanding applications. Whether you're in oil & gas, petrochemical, power generation, or chemical processing, we provide the materials you need at competitive prices.

Contact us today for a quote or more information about our SA 387 Grade 91 Class 2 Steel Plates and how we can support your projects globally.