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ASTM A 387

ASTM A 387 Plate Specifications

Product Name ASTM A 387 Plate
Thickness 6MM-50MM
Width 1250-2500MM
Length 5000-12000MM
Technique Hot rolled, Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)


What is ASTM A 387 Plate?

Dmsons Metal Pvt. Ltd. holds a prominent position as a leading wholesaler, vendor and merchant of ASTM A 387 Plates. We specialize in stocking and supplying top-quality Alloy Steel Plates sourced from reputable mills, offering high-performance plates at competitive prices. Our inventory includes a range of ASTM A 387 Alloy Steel Plates, featuring grades 5, 9, 11 and 22 all made from fully killed steel, suitable for elevated temperature applications.

The ASTM A387 standard specifies pressure vessel plates made from alloy steel and chrome-molybdenum, designed for use in elevated pressure boilers and pressure vessels. Among our offerings, ASME SA 387 GRADE 9 Alloy Steel Plates stand out with remarkable tensile and yield strength, making them particularly suitable for use at higher temperatures. The presence of Chromium and Molybdenum in these plates imparts excellent corrosion resistance and enhanced tensile strength at elevated temperatures.

ASME SA387 GRADE 12 CL.2, 13 CR-MO 44, ASME SA387 GRADE 12 CL.1, 13 CR-MO 44 PLATES, ASME SA387 GRADE 22 CL.2, 10 CR-MO 9-10, ASME SA387 GRADE 22 CL.1, 10 CR-MO 9-10 PLATE, ASTM A387 PLATES.

Alloy Steel plates offer advantages over Carbon Steel plates. The key reason lies in the properties of ASTM A 387 GRADE 12 Alloy Steel Plates, which become highly responsive to a wide array of heat treatments and mechanical processes. These plates contain essential elements like Chromium, Molybdenum, Manganese, Silicon, etc., making them stronger, harder, heat-tolerant, and weldable.

Our commitment to supplying superior Alloy Steel Plates allows our customers to access premium materials that meet the demands of various industries, such as power generation, oil and gas, chemical processing, and more. We take pride in offering reliable products that exhibit excellent performance under challenging conditions, ensuring the success of your projects.


GRADE A 387 5 SA 387 5 X12CrMo5   15KH5M
GARDE A 387 9 SA 387 9    
GRADE A 387 11 SA 387 11 13CrMoSi5-5 621B    
GRADE A 387 12 SA 387 12 13CrMo4-5 13CrMo44 620B 15CD2.05 12KHM
GRADE A 387 22 SA 387 22 10/11CrMo9-10 10CrMo9-10 622-515B 12CD9-10 10KH2M
GRADE A 387 91 SA 387 91 10CrMoVNb9-1      


  Grade 2 Grade 12 Grade 11 Grade 22 Grade 22L Grade 21 Grade 21L Grade 5  Grade 9 Grade 91*
C 0.05-0.21 0.05-0.17 0.05-0.17 0.05-0.15 0.10 0.05-0.15  0.10   0.15  0.15 0.08-0.12 
Mn 0.55-0.80 0.40-0.65  0.40-0.65 0.30-0.60  0.30-0.60  0.30-0.60  0.30-0.60  0.30-0.60  0.30-0.60  0.30-0.60 
P 0.025 0.035 0.035 0.035 0.035 0.025  0.025  0.035 0.030 0.020 
S 0.025 0.035 0.035 0.035 0.035 0.025  0.025  0.030 0.030 0.010 
Si 0.15-0.40 0.15-0.40  0.50-0.80 0.50 max 0.50 max 0.50 max 0.50 max 0.50 max 1.00 max 0.20-0.50 
Cr 0.50-0.80 0.80-1.15  1.00-1.50  2.00-2.50 2.00-2.50 2.75-3.25 2.75-3.25 4.00-6.00 8.00-10.00  8.00-9.50
Mo 0.45-0.60 0.45-0.60  0.45-0.65 0.90-1.10  0.90-1.10 0.90-1.10 0.90-1.10 0.45-0.65 0.90-1.10 0.85-1.05 
V  –  –  –  –  –  – 0.04  0.18-0.25
Ni  –  –  –  –  –  – 0.40 max
Co  –  –  –  –  –  – 0.06 – 0.10
Nit  –  –  –  –  –  – 0.030 – 0.070
Al  –  –  –  –  –  – –  0.02 max
Ti  –  –  –  –  –  – –  0.01 max
Zi  –  –  –  –  –  – 0.01 max



ASTM A 387 Plate Mechanical Properties

Grade A 387 Grade 5 A 387 Grade 9 A 387 Grade 11 A 387 Grade 12 A 387 Grade 22
Class 1 Class 2 Class 1 Class 2 Class 1 Class 2 Class 1 Class 2 Class 1 Class 2
Tensile Strength (ksi) 60-85 75-100 60-85 75-100 60-85 70-90 50-80 60-85 60-85 75-100
Tensile Strength (MPa) 415-585 515-690 415-585 515-690 415-585 485-620 380-550 415-585 415-585 515-690
Yield Strength (ksi) 30 45 30 45 35 45 33 40 30 45
Yield Strength (MPa) 205 310 205 310 240 310 230 275 205 310
Elongation in 200mm (%)         19 18 18 19    
Elongation in 50mm (%) 18 18 18 18 22 22 22 22 18 18
Reduction of area in % 45 45 45 45         45 45

‎ASTM A 387 Plates Price in India 

If you are looking to purchase ASTM A 387 Plates, it’s important to know the current market price. The ASTM A 387 Plate price can vary depending on the size, thickness, and quality of the material. Dmsons offers the best price in the market and ready stock available are listed below: –

Description Price
ASTM A 387 Alloy Steel Plate Rs 70,000 / Metric Ton( FOB Price)
ASTM A 387 Alloy Die Tool Plate Rs 65,000 / Metric Ton( FOB Price)
High Strength Low Alloy Hot Rolled Iron Plate Rs 90,000 / Metric Ton( FOB Price)
ASTM A 387 Alloy Steel Liner Plate Rs 40,000 / Metric Ton( FOB Price)
ASTM A 387 Alloy Structural Plate Rs 60,000 / Metric Ton( FOB Price)
ASTM A 387 Low-Alloy and High-Strength Plate Rs 85,000 / Metric Ton( FOB Price)

Please note that the prices may vary based on the quantity, location, and other factors. For accurate pricing and further details, please feel free to contact us.

ASTM A 387 Plate Applications 

ASTM A 387 plates find extensive applications in various industries, primarily due to their excellent mechanical properties and high-temperature resistance. Some common applications of ASTM A 387 plates include:

  1. Automotive and Aerospace Components: ASTM A 387 plates may be used in the manufacturing of certain automotive and aerospace components that require high strength and temperature resistance.
  2. Pressure Vessels: ASTM A 387 plates are widely used in the fabrication of pressure vessels for industries such as oil and gas, chemical processing, and power generation. These plates can withstand high-pressure environments and elevated temperatures, making them suitable for storing and transporting gases and liquids.
  3. Heat Exchangers: These plates are used in heat exchangers to facilitate the efficient transfer of heat between two fluids at different temperatures. Heat exchangers are essential components in various industries, including chemical processing and HVAC systems.
  4. Pipelines: ASTM A 387 plates are employed in the construction of pipelines for transporting oil, gas, and other fluids over long distances. These plates provide the necessary strength and resistance to withstand the pressures and temperature variations in pipeline operations.
  5. Reactors: In chemical and petrochemical industries, ASTM A 387 plates are used to construct reactors that facilitate various chemical processes, requiring materials with high-temperature and corrosion resistance.
  6. Power Generation: ASTM A 387 plates are essential in power generation equipment such as turbines, generators, and steam headers, where they need to withstand high temperatures and stresses.
  7. Offshore and Marine Equipment: In offshore oil drilling platforms, marine vessels, and related equipment, ASTM A 387 plates are utilized due to their strength and corrosion resistance, ensuring durability in harsh marine environments.
  8. Structural Components: While less common, these plates might also be used in certain structural applications where elevated temperature properties are necessary.

Overall, ASTM A 387 plates play a critical role in numerous industries, providing reliable solutions for high-temperature and high-pressure applications where strength, durability, and resistance to harsh conditions are essential for safe and efficient operations.

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About Company

Dmsons Metal Pvt. Ltd. is a leading company specializing in the manufacturing, supplying, wholesaling, and stockholding of ASTM A 387 Plates and sheets. With a strong reputation in the industry, Dmsons Metal has established itself as a prime manufacturer and supplier of high-quality ASTM A 387 sheets. The company is known for its commitment to delivering products that meet the highest standards of quality, durability, and performance. With a dedicated team of experts and state-of-the-art manufacturing facilities, Dmsons Metal Pvt. Ltd. ensures the production of ASTM A 387 Plates that possess exceptional mechanical properties, including high tensile strength and impact resistance. As a reliable ASTM A 387 plate suppliers, the company maintains a comprehensive inventory of these plates and sheets, allowing for prompt and efficient order fulfilment. With a customer-centric approach, competitive pricing, and a strong focus on customer satisfaction, Dmsons Metal Pvt. Ltd. has become a trusted partner for clients seeking top-quality ASTM A 387 Plates and sheets.

Market Area

We Supply ASTM A 387 Plates & Sheet in listed cities in India: –
Mumbai, Bengaluru, Chennai, Hyderabad, Kolkata, New Delhi, Pune, Ahmedabad, Jaipur, Surat, Salem, Gandhinagar, Bhiwandi, Tiruppur, Sivakasi, Jamnagar, Thiruvananthapuram, Rajahmundry, Bhubaneswar, Vijaywada, Firozabad, Bokaro Steel City, Rajkot, Bharuch, Panna, Raipur, Cochin, Ludhiana, Panipat, Durgapur, Peenya, Pimpri-Chinchwad, Channa Patna, Kharagpur, Nashik, Bareilly, Varanasi, Haldia, Rourkela, Bangalore, Moradabad, Indore, Visakhapatnam, Trivandrum, Pithampur, Dibrugarh, Angul, Gwalior, Coimbatore, Kannur, Nagpur, Vadodara, Rudrapur, Noida, Agra, Bhagalpur, Jamshedpur, Bhilai, Ratnagiri, Kanpur, Thane, Bhopal, Durg-Bhilainagar, Jabalpur, Lucknow, Ghaziabad

Related Products

ASTM A 387

This is a specification for pressure vessel plates made of chromium-molybdenum alloy steel.

ASTM A387 Grade 5

This specific grade of alloy steel plate has 5% chromium content and is primarily used in high-temperature

ASTM A387 Grade 9

Grade 9 alloy steel plates have 9% chromium content and are designed for high-temperature applications

ASTM A 387 GR 11

This grade is characterized by its 1.25% chromium and 0.5% molybdenum content. It is used in applications

ASTM A 387 GR 22

Grade 22 alloy steel plates contain 2.25% chromium and 1% molybdenum. They are suitable for high-temperature

ASTM A537 Class 1

These plates are used in pressure vessel applications at low and moderate temperatures.

ASTM A537 Class 2

Similar to Class 1, Class 2 plates are also used for pressure vessel applications but are designed

IS 2041 R355

This is an Indian standard specification for high tensile structural steel plates. R355 indicates a minimum yield strength

16MO3 Plates

These alloy steel plates are primarily used in the production of boilers and pressure vessels

13CrMo4-5 Plate

This grade of alloy steel plate is used in the production of heat exchangers, boilers, and pressure vessels


Another type of alloy steel plate used for high-temperature applications such as steam boiler and pressure vessel construction.

SA 387 GR 11 CL 2

This refers to the Class 2 variant of Grade 11 alloy steel plates, which are designed to withstand higher temperatures

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