China Galvanized Steel Grating manufacturer
Gnee Steel (tianjin) Co., Ltd
Professional Steel Grating & Safety Grating Manufacturer
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Hot DIP Galvanized Steel Grating with 25x5mm Bearing Bar and Serrated Style for Industrial Walkways

Hot DIP Galvanized Steel Grating with 25x5mm Bearing Bar and Serrated Style for Industrial Walkways

Brand Name GNEE
Certification SGS
Place of Origin Henan
Minimum Order Quantity Negotiation
Price Negotiation
Supply Ability 300000 Square Meter/Square Meters per Month
Packaging Details Standard Sea Worthy Package
Detailed Product Description
Hot DIP Galvanized Steel Grating Mezzanine Floor
What Is Galvanized Grating?

Galvanized grating consists of metal grates that undergo a specialized zinc coating process called galvanization. This treatment creates a protective barrier that significantly enhances the material's resistance to rust and corrosion. GNEE Steel provides premium grating manufactured from high-strength steel, offering superior structural integrity while withstanding harsh environmental conditions.

Hot DIP galvanized metal grating has three kinds of steel gratings: Plain Style Steel Grating, Serrated Style Steel Grating and I Bar Type Steel Grating. They are widely used in steel structure platforms, stair treads, sidewalks, drainages and well covers. We can design and manufacture standard steel grating and customized shapes per client's requirements.

Technical Specifications
Bearing Bar (Load Bar) Specifications

Plain type and serrated type bearing bar: 20 x 3 to 100 x 10 mm

I-section type: 25 x 5 x 3, 32 x 5 x 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x 7 x 4, 60 x 7 x 4, 65 x 7 x 4, 70 x 7 x 4, 75 x 7 x 4, etc.

Bearing Bar Pitch (center to center)

12.5, 15, 25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm (30, 40, 60mm recommended)

American standard available: 1" x 3/16", 1 1/4" x 3/16", 1-1/2" x 3/16", 1" x 1/4", 1-1/4" x 1/4", 1 1/2" x 1/4" (19-w-4) and more

Cross Bar Pitch (center to center)

38.1, 40, 50, 60, 76, 80, 90, 100, 101.6, 102, 135mm and more

Material

Mild Steel (Low Carbon Steel) or Stainless Steel

Surface Treatment

Untreated, Painting or Hot DIP Galvanizing

Steel Grating Standards
  • China: YB/T4001-1998
  • USA: ANSI/NAAMM (MBG531-88)
  • UK: BS4592-1987
  • Australia: AS1657-1985
  • Japan: JJS
Steel Grating Specification Table
No.ItemDetailed Description
1Bearing Bar25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc; I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc
US standard: 1" x3/16", 1 1/4" x3/16", 1 1/2" x3/16", 1" x1/4", 1 1/4" x1/4", 1 1/2" x1/4", 1" x1/8", 1 1/4" x1/8", 1 1/2" x1/8" etc
2Bearing Bar Pitch12.5, 15, 20, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc
3Twisted Cross Bar Pitch38.1, 40 50, 60, 76, 80, 100, 101.6, 120mm, 2" & 4" etc
4Steel GradeASTM A36, A1011, A569, Q235, S235JR, S275JR, SS304, Mild steel & Low carbon steel, etc
5Surface TreatmentBlack, self colour, hot dip galvanized, painted, spray coating
6Grating StylePlain / Smooth, Serrated /teeth, I bar, serrated I bar
7Grating StandardChina: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987, Australia: AS1657-1985, Japan: JIS
Frequently Asked Questions
What is steel grating?
Steel grating is a structural platform made from steel bars welded or pressed together to form a grid.
What types of steel grating are available?
Common types include welded, press-locked, and serrated steel grating.
What materials are used for steel grating?
Typically carbon steel, galvanized steel, stainless steel, or aluminum.
What is the load capacity of steel grating?
Load capacity depends on bar size, spacing, and grating type; it can be designed to carry light to heavy industrial loads.
Can steel grating be customized?
Yes, grating can be cut, shaped, and fabricated to fit specific dimensions and applications.
What are the common surface finishes?
Plain, hot-dip galvanized, electro-galvanized, painted, or powder-coated.
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