ASTM A36 Steel Plate – Chemical Composition, Properties, Equivalent Grades, and Weight Chart

ASTM A36 steel plate 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. ASTM A36 carbon steel plate is usually supplied in hot-rolled condition, which simplifies production and reduces cost while maintaining good structural performance.

Because of its versatility, ASTM A36 steel plate is often chosen as a base-grade material for structural fabrication, machinery frames, and heavy equipment bases, where consistent mechanical behavior and ease of processing are essential.

Table of Contents

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

ASTM A36 Chemical Composition

The typical chemical composition of ASTM A36 steel plate ensures both strength and excellent weldability, making it one of the most preferred grades in the carbon steel category.

*The low carbon content in A36 steel 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, making the A36 steel chemical composition ideal for general structural use.

ASTM A36 Steel Plate Mechanical Properties

The A36 steel plate properties make it a versatile and cost-effective choice for structural and fabrication purposes:

*These ASTM A36 steel properties ensure that it can be easily welded, machined, and formed. The yield strength of A36 steel plate allows it to perform reliably in beams, channels, and platforms. Its mechanical balance supports a wide range of applications where toughness and ductility are required.

ASTM A36 Equivalent Materials

Buyers sourcing steel internationally often compare A36 steel equivalent grades to ensure compatibility across standards.

When selecting ASTM A36 equivalent materials, engineers often cross-check mechanical requirements, available dimensions, and local certification to confirm interchangeability.

📖 See also: A36 vs A283 vs A572 vs A516 Steel Plate: Key Differences and Equivalents

ASTM A36 Common Dimensions and Weight

The A36 steel plate weight and thickness range determine its suitability for light, medium, and heavy-duty structures.

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):

*Assumes steel density of 7.85 g/cm³.

*Formula: Weight (kg) = Length (m) × Width (m) × Thickness (mm) × 7.85

For precise calculation or customized size estimation, use our Steel Plate Weight Calculator — helpful when selecting thickness from the A36 steel plate thickness chart.

For a complete overview of standard steel plate thicknesses from 1/4” to 12”, refer to our Steel Plate Thickness Guide.

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 Steel Plate

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

A36 shipbuilding plates are suitable for secondary decks and non-critical structures. For main hulls, high-strength or corrosion-resistant grades are preferred.

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 one of the most versatile and economical materials for global structural projects. Its balanced A36 steel plate properties, wide availability, and compatibility with multiple A36 steel equivalent grades make it a reliable choice for engineers and fabricators worldwide.

If you still have any questions about this ASTM A36 carbon steel plate, please feel free to contact our team for support.