SA387/A387 Steel Plate

Gnee Steel (Tianjin) Co., Ltd. is one of the most professional sa387/a387 steel plate manufacturers and suppliers in China. Welcome to wholesale customized sa387/a387 steel plate at competitive price from our factory. Good service and quality products are available.

 

Welcome to GNEE Steel: Your Trusted Supplier for SA387/A387 Steel Plates!

ASME SA387 / ASTM A387 Chrome Moly Plate Technical Specifications

• Grades Available: SA387 Grade 5, 9, 11, 12, 22, and 91
• Thickness: 6mm to 250mm (0.24" to 9.84")
• Width: Up to 3500mm (137.8")
• Length: Up to 18000mm (708.7")
• Standards: ASTM, ASME, and other international standards
• Heat Treatment: Annealed, Normalized and Tempered, Quenched and Tempered

 

ASME SA387 / ASTM A387 Plate Customization and Certification

• We understand that each project has unique requirements. Therefore, we offer customization options to meet your specific needs. Our steel plates can be cut, shaped, and treated according to your specifications. We also provide additional services such as pre-machining, beveling, and coating.
• Additionally, we provide full certification and traceability for every plate, ensuring compliance with the highest industry standards, including mill test certificates (MTC), EN 10204 3.1/3.2 certification, and third-party inspection reports.

 

Why Choose Our SA387/A387 Steel Plates?

1. Exceptional Quality Our SA387/A387 steel plates are manufactured to the highest standards, ensuring top-notch quality and performance. Rigorous quality control processes are in place to guarantee that each plate meets the required specifications and industry standards. Each batch undergoes extensive testing, including ultrasonic testing, impact testing, and chemical analysis, to ensure consistency and reliability.
2. High-Temperature Resistance Designed for applications where heat resistance is crucial, SA387/A387 steel plates can withstand extreme temperatures up to 600°C (1112°F) without compromising their structural integrity. This makes them ideal for use in boilers, pressure vessels, and heat exchangers. The chromium and molybdenum alloying elements provide excellent oxidation and sulfidation resistance.
3. Enhanced Durability These steel plates are not only heat resistant but also highly durable. They offer excellent corrosion resistance, particularly in environments with high sulfur content. Their superior mechanical properties, including high tensile strength and hardness, make them capable of enduring harsh environmental conditions, extending the lifespan of your equipment and reducing maintenance costs.
4. Versatile Applications

• Oil and Gas: Ideal for pressure vessels and offshore drilling platforms.
• Power Generation: Perfect for boilers and thermal power stations.
• Petrochemical: Suitable for reactors and chemical processing equipment.
• Chemical Processing: Used in heat exchangers and other high-temperature equipment.

 

ASTM A387 Grade 11Class2 Specification：

Thickness: 5MM - 300MM Width: 1500mm - 4050mm Length: 3000mm - 15000mm

Chemical composition :

Grade	C	Si	Mn	P	S	Cr	Mo	Cu
SA387GR11CL2	≤0.15	≤0.10	0.30～0.60	≤0.010	≤0.010	2.00～2.50	0.90～1.10	≤0.20

Mechanical Property :

Grade	Yield Strength Rel,MPa	Yield Strength Rm,MPa	Elongation A,%	Z,%	-30℃ Impact energy ,J	bend 180°,d=3a	High tensile Rp0.2
SA387GR11CL2	310～620	515～690	≥19	≥45	≥54	well	ASME

Delivery Condition: normalizing+ tempering

 

So far, GNEE Steel has provided over 2,500 tons of these high-quality plates for key components, such as EO reactors, hydrogenation reactors, high-pressure vessels, and gasification units.

 

Different Grades of ASTM / ASME A387 Grade 11 Chromium Molybdenum Steel：

· ASTM A387 Grade 11 Class 2

· ASME SA387 Grade 11 Class 2

 

Send product details such as steel grade, size and quantity to receive an accurate quote.

ASTM A387 Steel Plate Chemical Composition:
Grade	C	Mn	P	S	Si	Cr	Mo
A387 Gr 2	0.04-0.21	0.50-0.88	0.025	0.025	0.13-0.45	0.46-0.85	0.40-0.65
A387 Gr 5	≤0.15	0.25-0.66	0.025	0.025	≤0.55	3.90-6.10	0.40-0.70
A387 Gr 9	≤0.15	0.25-0.66	0.025	0.025	≤1.05	7.90-10.1	0.85-1.15
A387 Gr 11	0.04-0.17	0.35-0.73	0.025	0.025	0.44-0.86	0.94-1.56	0.40-0.70
A387 Gr 12	0.04-0.17	0.35-0.73	0.025	0.025	0.13-0.45	0.74-1.21	0.40-0.65
A387 Gr 21	0.04-0.15	0.25-0.66	0.025	0.025	≤0.50	2.63-3.37	0.85-1.15
A387 Gr 21L	≤0.12	0.25-0.66	0.025	0.025	≤0.50	2.63-3.37	0.85-1.15
A387 Gr 22	0.04-0.15	0.25-0.66	0.025	0.025	≤0.50	1.88-2.62	0.85-1.15
A387 Gr 22L	≤0.12	0.25-0.66	0.025	0.025	≤0.50	1.88-2.62	0.85-1.15
A387 Gr 91	0.06-0.15	0.25-0.66	0.025	0.012	0.18-0.56	7.90-9.60	0.80-1.10

ASTM A387 Steel Plate Mechanical Properties:
ASTM A387	Tensile Strength	Yield Strength	Elongation in	Elongation in
Steel Grade	ksi [Mpa]	Min. ksi [Mpa]	8in. [200mm]	2in. [50mm]
A387 Grade 2 Class 1	55-80 [380-550]	33 [230]	≥18%	≥22%
A387 Grade 5 Class 1	60-85 [415-585]	30 [205]		≥18%
A387 Grade 9 Class 1	60-85 [415-585]	30 [205]		≥18%
A387 Grade 11 Class 1	60-85 [415-585]	35 [240]	≥19%	≥22%
A387 Grade 12 Class 1	55-80 [380-550]	33 [230]	≥18%	≥22%
A387 Grade 21 Class 1	60-85 [415-585]	30 [205]		≥18%
A387 Grade 21L Class 1	60-85 [415-585]	30 [205]		≥18%
A387 Grade 22 Class 1	60-85 [415-585]	30 [205]		≥18%
A387 Grade 22L Class 1	60-85 [415-585]	30 [205]		≥18%
A387 Grade 2 Class 2	70-90 [485-620]	45 [310]	≥18%	≥22%
A387 Grade 5 Class 2	75-100 [515-690]	45 [310]		≥18%
A387 Grade 9 Class 2	75-100 [515-690]	45 [310]		≥18%
A387 Grade 11 Class 2	75-100 [515-690]	45 [310]	≥18%	≥22%
A387 Grade 12 Class 2	65-85 [450-585]	40 [275]	≥19%	≥22%
A387 Grade 21 Class 2	75-100 [515-690]	45 [310]		≥18%
A387 Grade 22 Class 2	75-100 [515-690]	45 [310]		≥18%
A387 Grade 91 Class 2	85-110 [585-760]	60 [415]		≥18%

 

Why Trust Us?

 

1.Expertise and Experience

• Proven Track Record: With over 20 years in the steel industry, we have successfully supplied SA387/A387 steel plates to numerous high-profile projects globally. Our extensive portfolio demonstrates our capability to deliver high-quality products consistently.

 

2.Customer-Centric Approach

• Tailored Solutions: We understand that every project is unique. Our team works closely with you to understand your specific requirements and provide customized solutions. From custom dimensions to specific heat treatments, we cater to all your needs.

 

3.Quality Assurance

• Rigorous Testing: Each SA387/A387 steel plate undergoes comprehensive testing, including ultrasonic testing, impact testing, and chemical composition analysis. This ensures that our products meet the stringent quality standards required for high-temperature and high-pressure applications.

 

• Certifications: We provide full certification and traceability for every plate. Our certifications include mill test certificates (MTC), EN 10204 3.1/3.2 certification, and third-party inspection reports, giving you confidence in the authenticity and quality of our products.

 

4.Global Reach and Reliable Supply Chain

• Worldwide Shipping: We have a robust logistics network that ensures timely delivery to any location around the globe. Whether your project is in a remote area or a major industrial hub, we guarantee prompt and reliable delivery.

 

• Strategic Partnerships: Our long-term partnerships with leading steel mills and suppliers enable us to maintain a steady supply of raw materials and finished products. This ensures that we can meet your demands even during market fluctuations.

 

Contact us

Ready to take your project to the next level? Contact us today for a quote or more information about our SA387/A387 steel plates. Our dedicated team is here to assist you with all your needs.

• Whatsapp/Wechat：+86 15824687445
• Emai：info@gneesteels.com

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