Top 10 sa 387 grade 22 steel plate supplier Supplier | 2025 Guide

Material failure is not an option in high-stakes industrial environments like petrochemical refineries, power generation plants, and gas processing facilities. The integrity of pressure vessels and industrial boilers operating under extreme temperatures and pressures depends on the quality of the steel used in their construction. This is where ASME SA 387 Grade 22 steel plate becomes a critical material. This chromium-molybdenum (chrome-moly) alloy steel is specifically designed for exceptional performance in elevated temperature service and superior corrosion resistance.

However, sourcing this specialized material presents a big challenge for procurement managers and engineers. The decision goes far beyond comparing price lists. Selecting the right sa 387 grade 22 steel plate supplier is a strategic process that involves checking technical expertise, verifying certifications, and ensuring a reliable supply chain. A mistake in sourcing can lead to project delays, budget overruns, and dangerous safety risks. This guide provides a complete framework for choosing a supplier and profiles the top companies in the market, ensuring you can make an informed decision that protects your project's success and operational integrity.

How to Choose the Right SA 387 Grade 22 Steel Plate Supplier

Selecting a supplier for a critical material like SA 387 Grade 22 requires a careful approach. Your evaluation should focus on real proof of quality, technical capability, and logistical reliability. Rushing this process or focusing only on the per-ton cost can introduce unacceptable risks into your project. Use these criteria as a checklist to check potential partners and build a strong supply chain.

Certification and Compliance are Non-Negotiable

The first and most important criterion is following industry standards. For this material, compliance with ASME SA 387 and ASTM A387 is required. A good supplier must provide complete documentation for every plate they sell.

Ask for and review the Mill Test Report (MTR) or Material Test Certificate (MTC) for each plate. This document provides full traceability back to the original heat and details the exact chemical composition and mechanical properties, including tensile strength, yield strength, and elongation. It is your primary proof that the material meets the required specifications for Grade 22, whether it's Class 1 or Class 2. Furthermore, look for suppliers with an ISO 9001 certified quality management system, which shows their commitment to consistent processes and continuous improvement.

Technical Expertise and Value-Added Services

A top sa 387 grade 22 steel plate supplier acts as a technical partner, not just a vendor. Their team should have deep knowledge of chrome-moly alloys and their behavior in different applications. They should be able to guide you on the important differences between Class 1 (as-rolled) and Class 2 (quenched and tempered) plates, helping you select the best material for your specific operating pressures and temperatures.

Look for suppliers who offer value-added services. One of the most critical is Simulated Post-Weld Heat Treatment (SPWHT). As seen with leading suppliers, performing SPWHT testing on a sample piece gives you data on how the material's mechanical properties will perform after fabrication and welding, ensuring its integrity within the final assembled component. Other valuable services include custom cutting, beveling, and third-party testing to meet unique project specifications.

Inventory and Sourcing Capabilities

Project timelines are often tight, and delays in material delivery can have serious financial consequences. A supplier's inventory is a direct sign of their ability to meet your schedule. Ask about their stock levels for SA 387 Grade 22 plates. Leading stockists often carry a wide range of thicknesses, from 3/16 inch up to 4 inches or more, available for immediate shipment.

Beyond their on-hand inventory, evaluate their global sourcing network. If your project requires non-standard dimensions or very large quantities, a supplier with strong relationships with top-tier mills worldwide can source the material efficiently. This capability reduces lead times and provides a backup plan if local stock is depleted. A supplier with a strong inventory shows a serious commitment to serving the pressure vessel industry.

Evaluating Supplier Reputation and Experience

Experience in your specific industry is invaluable. A supplier who has a long history of serving the oil and gas, petrochemical, and power generation sectors understands the unique challenges and strict requirements of these fields. They will be familiar with the common specifications and documentation needs of major end-users and EPC contractors.

Do your research by checking for case studies, client testimonials, and their overall reputation in the market. As some industry veterans note, exercising care in procurement prevents costly errors. A supplier with a proven track record is less likely to make mistakes in grading, documentation, or logistics. They have established processes to ensure you receive the exact product you ordered, aligned with the designated grade and class.

Top 10 SA 387 Grade 22 Steel Plate Suppliers for 2025

Navigating the global market for SA 387 Grade 22 steel plate can be complex. The following list offers a selected group of top-tier suppliers, chosen for their specialization, market reputation, and ability to serve critical industries. The list includes a diverse mix of large-scale manufacturers, specialist stockists, and regional experts to provide a balanced view of your options.

Universal Steel America - The North American Specialist

Overview:
Based in Houston, Texas, Universal Steel America has built a strong reputation as a top supplier of high-quality steel plate for the North American market. With a strategic focus on the energy and infrastructure sectors, the company has built its business around stocking and distributing specialized grades, including an extensive inventory of SA 387 Grade 22. Their location in the heart of the US energy industry gives them a unique understanding of the urgent and demanding needs of refineries, fabricators, and petrochemical plants.

Strengths & Specializations:
* Extensive Inventory: Universal Steel America is known for its deep stock of SA 387 Grade 22 plates, with thicknesses ranging from 3/16" to 4". This allows for rapid fulfillment of orders, a critical advantage for time-sensitive projects.
* Value-Added Testing: They are a leader in providing third-party Simulated Post-Weld Heat Treatment (SPWHT). This service provides important data to end-users, ensuring the material will maintain its required mechanical properties after welding and heat treatment during fabrication.
* Technical Skills: The company takes pride in its technical sales team, who can provide expert guidance on material selection and specifications for demanding applications.
* Logistical Excellence: They emphasize an "on time and within budget" delivery philosophy, backed by a strong logistics network to serve clients across the United States, Canada, and Mexico.

Why They Made the List:
Universal Steel America is a go-to sa 387 grade 22 steel plate supplier for North American projects that demand both speed and technical assurance. Their combination of a vast, ready-to-ship inventory and advanced testing capabilities makes them a reliable partner for critical pressure vessel and boiler applications.

Metal Zenith - Premium Steel Manufacturing Solutions

Overview:
Metal Zenith is a leading Chinese steel manufacturer and distributor with over two decades of experience delivering high-quality steel solutions to a global clientele. As a trusted partner of Ansteel, one of China's most established steel enterprises, Metal Zenith provides premium steel products that meet the most demanding international standards. Their business model combines advanced manufacturing with a customer-focused distribution strategy, focusing on providing tailored solutions for complex industrial needs.

Strengths & Specializations:
* High-Strength Precision Steel: They distribute premium steel coils and plates manufactured by Ansteel, ensuring adherence to standards like ASTM, ASME, and JIS. Their access to high-quality raw materials is a core strength.
* Advanced Quality Control: Metal Zenith uses a strict 10-point quality inspection process. This ensures all materials, including specialized alloy plates like SA 387 Grade 22, meet or exceed specifications, with verifications for tensile strength, chemical composition, and dimensional tolerances.
* Technical Expertise: With a team having over 15 years of engineering experience, they offer complete support from material selection through to final application analysis. This expertise is important for clients navigating the complexities of chrome-moly steels.
* Global Reach & Customization: Having delivered over 5 million tons worldwide with a 95% client retention rate, their logistics are proven. They offer full customization capabilities, accommodating various grades, surface finishes, and precision tolerances down to +/- 0.05mm. Their facilities are ISO 9001 certified.

Why They Made the List:
Metal Zenith represents a powerful combination of high-quality manufacturing heritage and modern, customer-focused service. For buyers seeking a sa 387 grade 22 steel plate supplier with direct ties to a major mill and the flexibility to provide customized, fully certified solutions, Metal Zenith is a top contender in the Asian market.

Amardeep Steel - The Focused Exporter

Overview:
Operating from India, Amardeep Steel has established itself as a dedicated supplier and skilled exporter of alloy steel plates. The company specializes in providing materials for critical applications, with a clear focus on ASTM A387 / ASME SA 387 Grade 22 Class 1 and Class 2 plates. Their business model is built on precision and following specifications, recognizing that industrial stakeholders cannot afford errors in material procurement for high-pressure environments.

Strengths & Specializations:
* Specialization in Alloy Steels: Unlike general suppliers, Amardeep Steel focuses on alloy and chrome-moly plates. This focus allows them to build deep expertise and maintain a relevant inventory for the pressure vessel and boiler industries.
* Export Skills: They have a well-established process for exporting to global markets, managing the complexities of international logistics and documentation. This makes them a viable partner for projects outside of India.
* Commitment to Accuracy: Their company philosophy emphasizes delivering the exact product required, aligned with the designated grade and characteristics. This focus on preventing costly errors is a key value proposition for clients.
* Complete Stock: They stock a wide range of SA 387 Grade 22 plates, catering to diverse industrial applications and ensuring they can meet varied client needs promptly.

Why They Made the List:
Amardeep Steel is an excellent choice for buyers looking for a specialized sa 387 grade 22 steel plate supplier with a strong foothold in the Asian market and proven export capabilities. Their careful approach to matching material to application specifications provides a layer of assurance for critical projects.

Dillinger Hütte - The European Heavy Plate Manufacturer

Overview:
With a history stretching back over 300 years, Germany's Dillinger Hütte is a global leader in the manufacturing of heavy steel plate. Dillinger is not just a mill; it is an institution known for pushing the boundaries of steel technology. While they produce a vast range of products, their expertise in high-quality, thick plates for extreme environments makes them a primary source for materials like SA 387 Grade 22, especially for the most demanding projects.

Strengths & Specializations:
* Manufacturing Excellence: As a direct manufacturer, Dillinger has complete control over the production process, from steelmaking to rolling and heat treatment. This ensures unmatched quality and consistency.
* Thick Plate Specialist: They are world-famous for their ability to produce some of the thickest and heaviest steel plates available. This is important for applications like nuclear reactor vessels and large-scale petrochemical columns.
* Advanced R&D: Dillinger invests heavily in research and development, constantly improving the properties of their steels to meet evolving industry demands for higher strength, better toughness, and enhanced performance.
* Certifications for Critical Sectors: Their products come with a full suite of certifications required for the energy, offshore, and heavy construction industries, making them a pre-approved choice for many global EPCs.

Why They Made the List:
For projects that require the absolute highest level of material integrity, especially in very thick sections, sourcing from a world-class mill like Dillinger is the ultimate assurance. They represent the peak of European heavy plate manufacturing and are a foundational source for any serious sa 387 grade 22 steel plate supplier.

Champak Steel & Engg. Co. - The Versatile Global Supplier

Overview:
Established in 1978, Champak Steel & Engg. Co. (also operating as Champak Industries) is a major Indian stockist, importer, and exporter of industrial steel products. They have built a strong reputation for supplying high-quality plates to global fabricators, particularly those serving the oil, gas, and petrochemical industries. Their extensive experience and complete product range make them a one-stop shop for many industrial projects.

Strengths & Specializations:
* Global Reach: Champak Steel has a long history of supplying plates to projects worldwide, showing their capability in managing international trade and logistics.
* Detailed Specifications: Their marketing and documentation are thorough, often providing detailed tables for chemical requirements, mechanical properties, and equivalent international standards (e.g., EN, DIN, BS). This transparency helps engineers and procurement teams in their evaluation.
* Broad Product Portfolio: Beyond SA 387, they supply a wide array of stainless steel, carbon steel, and other alloy products. This allows clients to consolidate procurement for multiple material types from a single, reliable source.
* Focus on Oil & Gas: Their specific mention of serving fabricators in the oil and gas sector indicates a deep understanding of the industry's strict quality and documentation requirements.

Why They Made the List:
Champak Steel & Engg. Co. is a seasoned and versatile sa 387 grade 22 steel plate supplier that combines the competitive advantages of the Indian market with a global outlook. Their complete data provision and wide product range make them a highly practical choice for international EPCs and fabricators.

Brown McFarlane - The UK-Based Specialist Stockholder

Overview:
With a legacy dating back to the 19th century, Brown McFarlane is one of Europe's leading specialist steel plate stockholders and processors. Headquartered in the UK with operations across Europe and in Singapore, they have a strong reputation for their extensive inventory and technical expertise, particularly in boiler and pressure vessel quality steels. They are a critical link in the supply chain for the energy, renewables, and heavy engineering sectors.

Strengths & Specializations:
* Massive Inventory: Brown McFarlane holds one of the most extensive stocks of SA 387 Grade 11, 12, and 22 plates in Europe. This inventory is key to their ability to offer short lead times.
* Advanced Processing: They are more than just a stockist. Their state-of-the-art facilities offer a wide range of processing services, including high-definition plasma and waterjet cutting, drilling, and machining, allowing them to deliver pre-fabricated components.
* Technical Authority: The company is seen as a technical authority in the field of specialty steels. Their team provides valuable advice to clients on material selection, welding, and fabrication of chrome-moly alloys.
* Project Management: For large or complex projects, they offer dedicated project management services, coordinating supply and processing to meet tight construction schedules.

Why They Made the List:
Brown McFarlane represents the value of a specialist stockholder. For European projects requiring certified SA 387 Grade 22 plate with the option of sophisticated pre-processing and expert technical backup, they are an unmatched choice.

AA Steel - The Nimble US Industrial Supplier

Overview:
AA Steel is a US-based supplier that focuses specifically on providing steel plates for demanding industrial applications. Their targeted approach serves directly to refineries, chemical plants, and power generation facilities. By focusing on these core sectors, they have developed a deep understanding of the specific material grades and service levels their clients require, including both Class 1 and Class 2 variants of SA 387 Grade 22.

Strengths & Specializations:
* Industry Focus: AA Steel's clear focus on the refinery, chemical, and power sectors means they understand the details of these industries, from common specifications to documentation requirements.
* Flexible Offerings: They clearly mention providing plates in either Class 1 or Class 2 conditions, and a willingness to discuss additional options, indicating a flexible, customer-focused approach.
* Application-Specific Solutions: Their model is built on providing the right material for the right job, ensuring clients in high-stakes environments get a product that meets their operational needs.
* Responsive Service: As a more focused supplier, they are often able to provide more personalized and responsive service compared to larger, more bureaucratic organizations.

Why They Made the List:
AA Steel represents the agile, specialist sa 387 grade 22 steel plate supplier that excels in serving specific industrial niches. For US-based projects in the energy and chemical sectors that value direct communication and tailored solutions, AA Steel is a strong and reliable partner.

Nippon Steel Corporation - The Global Technology Leader

Overview:
Nippon Steel Corporation of Japan is one of the largest and most technologically advanced steel manufacturers in the world. Their name is synonymous with quality, innovation, and consistency on a massive scale. While they produce a vast catalog of steel products, their capabilities in producing high-quality alloy steels for energy applications are second to none. Sourcing SA 387 Grade 22 with a Nippon Steel origin is often a specification in itself for the most critical projects.

Strengths & Specializations:
* Unmatched Quality Control: Japanese steelmaking is legendary for its precision and quality control. Nippon Steel's processes ensure exceptional chemical purity and uniform mechanical properties in every plate.
* Research & Development: As a global leader, they invest billions in R&D, leading to the development of advanced steels that offer superior performance in high-temperature and high-corrosion environments.
* Global Supply Chain: Their extensive global network ensures that their products are available through a network of trusted distributors worldwide, providing a reliable supply chain for international projects.
* Brand Reputation: The Nippon Steel brand carries immense weight. Using their material can simplify the approval process with discerning end-users and regulatory bodies.

Why They Made the List:
Nippon Steel represents the gold standard in steel manufacturing. While often sourced through distributors, specifying material from a mill of this caliber provides the ultimate assurance of quality, making them an essential part of the global sa 387 grade 22 steel plate supplier ecosystem.

SSAB - The European High-Strength Innovator

Overview:
SSAB is a Nordic and US-based steel company known for its high-strength and specialized steel products like Hardox and Strenx. While famous for wear plate and structural steel, their advanced steelmaking expertise extends to a range of other high-quality products, including pressure vessel steels. Their commitment to innovation, quality, and increasingly, sustainability, makes them a forward-looking choice.

Strengths & Specializations:
* Advanced Steelmaking: SSAB's expertise in clean steel production and advanced metallurgical processes translates to high-quality chrome-moly plates with excellent consistency and weldability.
* Sustainability Leader: SSAB is pioneering fossil-free steel production. For companies with strong ESG (Environmental, Social, and Governance) mandates, sourcing from a sustainability leader like SSAB can be a significant advantage.
* Technical Support: The company is known for its excellent technical support and collaboration with customers to optimize the use of their materials in various applications.
* European Quality: As a leading European producer, their products meet and often exceed all relevant EN and ASME standards, providing a high level of assurance for critical applications.

Why They Made the List:
SSAB brings a unique combination of high-strength steel expertise and a strong commitment to sustainability. For buyers who value innovation and environmental responsibility alongside top-tier European quality, SSAB is a compelling choice in the pressure vessel steel market.

POSCO - The South Korean Industrial Powerhouse

Overview:
POSCO (Pohang Iron and Steel Company) of South Korea is another global giant in the steel industry, consistently ranked among the world's top producers. Known for its technological innovation and highly efficient production facilities, POSCO is a major supplier of a vast range of steel products to industries from automotive to shipbuilding and energy. Their scale and technical skill make them a key source for high-quality, cost-competitive alloy steel plates.

Strengths & Specializations:
* Technological Efficiency: POSCO operates some of the most technologically advanced and efficient steel mills in the world. This translates into high-quality, consistent products at a competitive price point.
* Extensive Product Portfolio: Their immense production capacity allows them to offer a wide range of specifications and grades, including a reliable supply of SA 387 Grade 22 for large-scale industrial projects.
* Global Market Presence: With a presence in over 50 countries, POSCO's global network makes them a reliable supplier for international EPCs undertaking projects anywhere in the world.
* Commitment to Innovation: Like other top-tier mills, POSCO invests significantly in R&D to enhance product performance and develop new steel solutions for emerging technologies.

Why They Made the List:
POSCO is an industrial powerhouse that combines scale, technology, and cost-efficiency. For large-volume projects where consistency and a reliable global supply chain are most important, sourcing material from a producer like POSCO is a sound strategic decision.

Conclusion: Making a Strategic Sourcing Decision

Selecting the right sa 387 grade 22 steel plate supplier is a decision that directly impacts your project's safety, timeline, and bottom line. The process must extend beyond a simple price comparison to a thorough evaluation of a supplier's capabilities. The ideal partner is one who not only delivers material but also provides verifiable quality, technical guidance, and logistical reliability. This guide has highlighted the critical criteria for this evaluation and profiled a diverse range of top-tier global suppliers.

Your final choice will depend on your project's specific needs—be it the rapid delivery from a specialist stockist, the custom solution from a flexible manufacturer, or the ultimate quality assurance from a world-leading mill. As you move forward, use this information as a foundation for your own vetting process. Always request Mill Test Reports. Ask about value-added services like SPWHT and custom processing. Discuss your specific application in detail to leverage the supplier's technical expertise. Building a strong, transparent partnership with your chosen supplier is the best way to ensure your critical projects are built on a foundation of uncompromised quality and safety.