High-Grade Special Plates for Structural and Industrial Requirements

Special Plates

Metal Exponents Inc. delivers a comprehensive portfolio of steel plate products sourced from premier mills across global manufacturing hubs, backed by four decades of distinguished expertise in importation and distribution. Central to its specialized inventory are special plates, encompassing various internationally recognized steel grades engineered for rigorous technical and industrial applications.

Unlike standard classifications, special plates are defined by precise technical specifications and performance metrics, enabling more accurate material selection for high-demand projects.

Special Plates

A516

A516 carbon steel plate is a hot-rolled ASTM A516-compliant material designed for pressure vessel and boiler applications under moderate to low temperatures. As a special plate, it is available in multiple grades, including A516 Gr 60, 65, and 70, with controlled mechanical properties and an optional normalized condition for improved toughness.

Special Plates

Specifications/Technical Details:

Category Details
Standard ASTM A516 / ASTM A516M
Product Type Carbon steel special plate (pressure vessel quality)
Manufacturing Process Hot-rolled steel plate
Grades Available A516 Grade 60, Grade 65, A516 Grade 70
Heat Treatment Option Normalized condition (Gr 70N)
Key Mechanical Properties Tensile strength varies by grade (approx. 60–90 ksi range); Yield strength increases by grade. Elongation varies by thickness and grade
Material Characteristics Controlled chemical composition; Suitable for welding and fabrication processes
Quality Controls Mechanical testing; Chemical composition verification; Non-destructive testing when required
Compliance ASTM A516 / ASTM A516M standard requirements

Common Applications

This special plate is used in industries that require controlled performance under pressure and temperature conditions.

  • Pressure vessels Boilers
  • Heat exchangers
  • Storage tanks
  • Industrial equipment fabrication
  • Power generation systems

A572

ASTM A572 steel plate is a high-strength, low-alloy special plate developed for structural applications requiring optimized load performance and material efficiency. Available in multiple grades, it offers controlled mechanical properties, weldability, and fabrication flexibility, making it suitable for demanding structural and industrial requirements.

Special Plates

Specifications/Technical Details:

Category Details
Standard ASTM A572
Product Type High-strength low-alloy special plate
Grade Options Grade 42, Grade 50, Grade 55, Grade 60, Grade 65
Manufacturing Form Hot-rolled steel plate, bar, structural shapes
Chemical Composition Carbon 0.21–0.26%; Manganese up to 1.35%; Silicon 0.15–0.40%; Phosphorus ≤0.04%; Sulfur ≤0.05%; Vanadium 0.01–0.15%
Mechanical Properties Yield strength: 42–65 ksi; Tensile strength: 60–80 ksi; Elongation varies by grade (approx. 18–21% for Grade 50)
Physical Properties Density approx. 7.80 g/cm³;  Melting point 1,370–1,510°C;  Thermal conductivity ~45 W/m·K
Fabrication Properties Weldable, machinable, and formable using standard industrial processes
Processing Methods Cutting, drilling, milling, and welding
Compliance ASTM A572 specification requirements

Common Applications

This special plate is selected for structural and load-bearing environments requiring controlled mechanical performance.

  • Bridges
  • Buildings and high-rise structures
  • Transportation equipment
  • Heavy machinery
  • Energy infrastructure

ABS

Certified by the American Bureau of Shipping, this marine-grade special plate is engineered specifically for shipbuilding and offshore structural applications.

Manufactured under rigorous regulatory oversight, it provides high-strength mechanical properties, enhanced corrosion resistance, and excellent fabrication reliability for vessels and components operating in demanding, saline-heavy maritime environments.

Special Plates

Specifications/Technical Details:

Category Details
Standard American Bureau of Shipping (ABS)
Product Type Marine-grade special plate
Grade Options ABS Grade A, Grade B, Grade C
Manufacturing Form Hot-rolled plate or rolled steel
Chemical Composition Carbon 0.42–0.50%; Manganese 0.60–0.90%; Phosphorus ≤0.040%; Sulfur ≤0.050%; Iron balance (98.51–98.98%)
Mechanical Properties Tensile strength: 400–517 MPa (58–75 ksi); Yield strength: 234 MPa (34 ksi); Elongation: minimum 22%
Performance Characteristics Designed for marine exposure, optimized strength and toughness
Fabrication Properties Weldable and suitable for standard shipbuilding processes
Certification ABS-approved for marine and offshore applications

Common Applications

This special plate is specified for marine and structural environments requiring regulated material performance under harsh conditions.

  • Shipbuilding structures
  • Offshore platforms
  • Marine equipment fabrication
  • Cargo and transport vessels
  • Ship repair and maintenance

Wel-Hard Nippon

WEL-HARD by Nippon Steel is an abrasion-resistant special plate designed for high-wear and high-impact environments. With a hardness of approximately 500 BHN (Brinell Hardness Number), it is produced by quenching and tempering to balance surface hardness and core toughness.

This special plate maintains performance under severe mechanical stress and supports extended service life in demanding conditions.

Special Plates

Specifications/Technical Details:

Category Details
Product Specification WEL-HARD (Nippon Steel)
Product Type Abrasion-resistant special plate
Hardness Rating Approx. 500 BHN (Brinell Hardness Number
Manufacturing Process Quenching and tempering
Base Composition Low-carbon steel with alloying elements (varies by grade)
Key Mechanical Characteristic High surface hardness with retained toughness
Performance Features Resistance to abrasion, impact, and surface wear
Fabrication Properties Suitable for cutting and forming with proper procedures
Material Classification Wear-resistant steel plate (AR-type equivalent)
Service Environment High-abrasion industrial applications

Common Applications

This special plate is selected for environments where abrasion and impact resistance are critical to performance.

  • Mining equipment
  • Construction machinery
  • Cement plants
  • Dump truck bodies
  • Marine and offshore structures

Get the Right Special Plate for Your Application

Metal Exponents Inc. supplies a complete range of special plates engineered for pressure, structural, marine, and wear-intensive applications.

Each special plate in our portfolio is supported by strict quality verification, established mill partnerships, and a dependable nationwide distribution network, ensuring consistency from sourcing to delivery.

Contact our team today to request technical specifications, quotations, or availability for your required special plate.

Special Plates