ASTM A786

AspectDescription
StandardASTM A786/A786M: Standard Specification for Hot-Rolled Carbon, Low-Alloy, High-Strength Low-Alloy, and Alloy Steel Floor Plates
Material Types- Carbon Steel
- Low-Alloy Steel
- High-Strength Low-Alloy Steel (HSLAS)
- Alloy Steel
ConditionTypically provided in the as-rolled condition; may be heat-treated depending on material specification
Surface FeatureRolled floor plates have raised figures (e.g., diamond or lug patterns) at regular intervals on one surface for skid resistance
Applications- Flooring
- Stairways
- Walkways
- Ramps
- Truck beds
- Trailer floors
- Ship decks
- Mezzanines
- Trench covers
- Industrial and structural uses
Quality- Commercial Quality (CQ): Suitable for painting and moderate fabrication
- Steel undergoes heat and product analysis
- Tensile tests ensure yield point, yield strength, and tensile strength compliance
Size ClassificationAvailable in dimensions meeting classification size limits for:
- Sheet
- Heavy thickness sheet coil
- Plate
Thickness Range- Maximum thickness for product delivered under this specification is 1 in. [25 mm]
Width and Length- Varies by manufacturer and supplier
- Typically available in widths from 36 in. [914 mm] to 96 in. [2438 mm] or wider
- Lengths commonly range from 96 in. [2438 mm] to 240 in. [6096 mm] or longer, cut to order
Weldability- Presupposes a welding procedure suitable for the grade and use
- See Appendix X3 of ASTM A6/A6M for weldability guidance
Units- Values stated in inch-pound units or SI units (e.g., mm), used independently
Category:

Description

ASTM A786 Plate

ASTM A786 is a standard specification developed by ASTM International for hot-rolled carbon, low-alloy, and high-strength low-alloy steel floor plates. It is primarily used in applications where slip resistance and durability are important, such as in industrial floors, platforms, stair treads, and truck beds.

Key Characteristics:

  • Produced by hot-rolling
  • Defined by a raised pattern (checkered/tread) to improve traction
  • Used for both structural and decorative purposes
  • Suitable for welding and forming

ASTM A786 Equivalent

  • ASTM A36
  • ASTM A1011
  • ASTM A572
  • ASTM A588
  • ASTM A606
  • ASTM A715

ASTM A786 Products

Product Type Description
Steel Floor Plate (Tread Plate) Hot-rolled plate with raised pattern (checkered or diamond), commonly used for flooring and platforms.
Checker Plate Synonym for tread plate; includes 1-bar, 2-bar, and 5-bar patterns for anti-slip purposes.
Diamond Plate Features a raised diamond pattern; ideal for aesthetic and functional uses such as stairs and ramps.
Anti-Skid Floor Plate Specifically designed with enhanced traction for walkways, industrial floors, and truck beds.
Formed Structural Parts Cut and bent A786 plates for use in industrial and automotive frameworks.
Cut-to-Size Sheets Pre-cut A786 patterned plates for smaller-scale or custom projects.
Machinery Platforms Pre-fabricated floor panels with tread pattern, used for maintenance areas and walkways.
Ramp Plates Load-bearing plates with pattern surface, ideal for loading docks, vehicular ramps, etc.

Available Forms

  • Sheets
  • Plates
  • Slit Coils (for fabrication)
  • Custom profiles or formed parts

Available Finishes

  • Mill Finish
  • Pickled and Oiled
  • Galvanized (on request)

Advantages

  • High slip resistance
  • Durable and strong under load
  • Aesthetic appeal for architectural use
  • Good weldability and workability

Applications

  • Walkways and industrial flooring
  • Stair treads and ramps
  • Loading docks and platforms
  • Trailers, truck beds, and agricultural equipment
  • Architectural uses (for aesthetics and function)

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