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1/4 A36 Steel Plate

1/4″ A36 Steel Plate

This product adheres to ASTM A36 standard for low-alloy structural steel, with a precise thickness of 1/4 inch (6.35mm). Boasting a tensile strength of 400-550MPa and a yield strength of ≥250MPa, it offers excellent mechanical properties and machining adaptability. Easy to cut, weld, and bend, it suits multiple scenarios including machinery manufacturing, building structures, and equipment bases. Featuring uniform material, flat surface, corrosion resistance, and load-bearing capacity, it is a cost-effective choice for industrial applications, meeting the needs of bulk supply for foreign trade orders.

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More Details About 1/4 A36 Steel Plate

  • Basic Quotation: The reference price for spot standard sizes (48×96 inches, 60×120 inches) is 0.35-0.45 USD per pound (approximately 770-990 USD per metric ton), corresponding to the mill finish surface condition and complying with the ASTM A36 standard benchmark price.
  • Bulk Discount: For purchase quantities ≥5 metric tons, the unit price can be reduced to 0.30-0.38 USD per pound (approximately 660-836 USD per metric ton); orders ≥10 metric tons enjoy tiered discounts, with specific terms negotiable.
  • Additional Fees: Custom cutting and pickled & passivated treatment incur an additional processing fee of 0.05-0.10 USD per pound; the unit price for expedited delivery or small-batch retail (<1 metric ton) increases by 10%-15%.
  • Price Fluctuation: Affected by iron ore, scrap steel costs and market supply-demand factors, the monthly price fluctuation range is about 5%-8%. It is recommended to inquire about real-time quotes before placing orders to lock in costs.
  • Material Standard: Complies with ASTM A36, low-alloy structural steel
  • Thickness Specification: 1/4 inch (6.35mm)
  • Standard Sizes:
    • Width: 48 inches (1219mm), 60 inches (1524mm)
    • Length: 96 inches (2438mm), 120 inches (3048mm)
    • Custom cutting available
  • Chemical Composition:
    • Carbon (C): ≤0.29%
    • Manganese (Mn): 0.80-1.20%
    • Phosphorus (P): ≤0.040%
    • Sulfur (S): ≤0.050%
    • Silicon (Si): 0.15-0.40%
  • Surface Condition: Mill Finish or Pickled & Passivated, no obvious cracks, inclusions or rust on the surface
  • Execution Standards:
    • Dimensional Tolerance: ASTM A6
    • Surface Quality: ASTM A924
  1. Mechanical Properties: Complies with ASTM A36 standard, featuring a tensile strength of 400-550MPa, yield strength of ≥250MPa, and elongation of ≥20%. It possesses excellent toughness and load-bearing capacity, capable of withstanding mild to moderate impact loads.
  2. Machinability: Easy to perform plasma cutting, flame cutting, arc welding and other processing operations. No cracks occur after bending forming, and the mechanical properties remain stable post-processing, meeting the needs of industrial mass production.
  3. Material Characteristics: Uniform low-alloy composition with no obvious internal defects, flat and smooth surface, thin oxide scale, and good basic corrosion resistance. It can be used directly or after simple treatment.
  4. Application Scenarios: The 1/4-inch thickness balances lightweight and structural stability, suitable for mild to moderate load-bearing scenarios such as mechanical part processing, building frame support, and equipment base manufacturing.
  1. Construction Engineering: Suitable for light steel structure frames, floor support beams, curtain wall keels, and building connectors. The 1/4-inch thickness balances structural stability and ease of installation, allowing direct welding and assembly, which meets the load-bearing requirements of small and medium-sized buildings.
  2. Machinery Manufacturing: Used in producing small mechanical housings, transmission components, equipment brackets, etc. The material is easy to process and form with stable mechanical properties, satisfying precision requirements in mass production and reducing processing costs.
  3. Equipment Bases & Tooling: Applicable for manufacturing instrument bases, workbench surfaces, and fixtures. It features excellent load-bearing capacity and flatness, reducing vibration during equipment operation and improving operational stability.
  4. Steel Structure Accessories: Can be processed into guardrails, handrails, shelf beams, and other accessories. The surface is easy to undergo anti-corrosion treatments like painting and galvanizing, adapting to long-term use needs in scenarios such as warehousing, workshops, and municipal facilities.

Q：How much does 1/4 A36 plate weigh?
A：The density of A36 steel is 7.85g/cm³, and the weight of the steel plate is calculated by “volume × density”. The weights of standard sizes are as follows:

  1. 48×96 inches: Volume = 0.25×48×96×2.54³÷1000≈18.87 cubic decimeters, weight≈18.87×7.85≈148kg (about 326.5 pounds).
  2. 60×120 inches: Volume = 0.25×60×120×2.54³÷1000≈29.48 cubic decimeters, weight≈29.48×7.85≈231.4kg (about 510.2 pounds).

    The weight tolerance complies with ASTM A6 standard, controlled within ±3%. The weight of custom-cut sizes can be accurately calculated using the above formula.

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