ASTM A36 Steel Plate: Properties, Equivalent Grades, and Applications

Introduction

ASTM A36 steel plate is one of the most widely used carbon steel plates in construction, manufacturing, and industrial applications. Its popularity is due to a combination of excellent weldability, balanced strength, and cost efficiency. A36 is usually supplied in hot-rolled condition, which simplifies production and reduces cost while maintaining good structural performance.

Table of Contents

• Chemical Composition
• Mechanical Properties
• Equivalent Materials
• Common Dimensions and Weight
• Practical Applications
• FAQ

ASTM A36 Chemical Composition

The chemical composition of A36 steel ensures both strength and excellent weldability.

*The low carbon content reduces the tendency for welding cracks, while low phosphorus and sulfur minimize impurities that could weaken joints. Manganese contributes to overall tensile strength without compromising ductility.

ASTM A36 Mechanical Properties

A36 steel mechanical properties make it versatile for structural applications:

*These properties allow A36 to be used in beams, plates, channels, and rods, offering a balance of strength and workability for fabrication and structural projects.

ASTM A36 Equivalent Materials

Buyers sourcing steel internationally often compare A36 with local equivalents:

📖 See also: What Are the Most Common Steel Plate Grades Like A36, A283, and A572?

ASTM A36 Common Dimensions and Weight

1. Standard Size Range:

• Thickness: 5 – 200 mm (Stock sizes: 6, 8, 10, 12, 14, 16, 20, 25, 30, 40, 50 mm)
• Width: 1,500 – 3,500 mm
• Length: 6,000 – 18,000 mm

2. Quick Weight Reference (based on 1,500 mm × 6,000 mm standard plate):

Use this table for quick estimation. For other sizes, use our Steel Plate Weight Calculator.

*Assumes steel density of 7.85 g/cm³. Formula: Weight (kg) = Length (m) × Width (m) × Thickness (mm) × 7.85

3. Application Selection Guide:

• Thin Plates (5–20 mm): Light structural components, machine shells, panels.
• Medium Plates (20–50 mm): Beams, platforms, bridge components, equipment bases.
• Heavy Plates (50–200 mm): Shipbuilding, pressure vessel bases, heavy machinery.

Practical Applications Of ASTM A36

1. Construction and Infrastructure

Used in beams, columns, and platforms. A36 Checkered Steel Plate is preferred for flooring due to its anti-slip surface. A36 Carbon Steel U Channel, A36 Carbon Steel C Channel, and A36 Carbon Steel I-Beam support structural frames efficiently.

2. Shipbuilding and Offshore Structures

Auxiliary decks and non-critical structures may use A36, while main hulls often require A36 High-Strength Shipbuilding Steel Plate for enhanced toughness and corrosion resistance.

3. Machinery and Industrial Equipment

Tanks, equipment bases, and fabricated components use A36 Carbon Steel Plate and A36 Carbon Steel Coil. A36 Steel Round Bar is supplied for shafts and fasteners.

FAQ

• Q1: Can A36 steel be galvanized?
  Yes, hot-dip galvanization improves corrosion resistance for outdoor or humid environments.
• Q2: What is the density of A36 steel?
  Approximately 7.85 g/cm³.
• Q3: Can A36 be welded with other grades?
  Yes, it has excellent weldability with most common structural steels.
• Q4: What surface finishes are available?
  Hot-rolled, pickled & oiled, and checkered finishes.
• Q5: Is A36 suitable for offshore/marine applications?
  It can be used for non-critical structures, but higher-strength or corrosion-resistant grades are recommended for main hulls.
• Q6: What sizes are typically stocked?
  Common stock: 6–50 mm thickness. Heavy plates up to 200 mm are supplied on order.
• Q7: Can I order A36 in coil form?
  Yes, A36 steel coil is available for cutting and further processing.
• Q8: How does A36 compare in cost-effectiveness?
  A36 balances price and performance, making it a cost-efficient choice for many structural projects.
• Q9: Can A36 replace higher-strength steels?
  For demanding projects, grades like ASTM A572 or high-strength shipbuilding steel may be used.

Conclusion

ASTM A36 steel plate remains a versatile, cost-effective choice for global construction and fabrication projects. With natural weldability, balanced strength, and availability in multiple forms, it continues to meet diverse engineering needs efficiently.

If you still have any question in this steel material, please feel free to contact our team for support.