Welded Industrial Steel Grating , Mild Steel Grating Plain Bearing Bar​

Serrated welded steel grating is made of low carbon steel and stainless steel. With the features of high strength, high bearing capacity, non-slip, anti-corrosion, high safety performance, do not accumulate rain, snow and dust and long lifespan, it is widely used as platforms, stair treads, walkaway and floors in industrial, civil and commercial buildings.

Welded steel grating, is the most popular and common type of steel grating. As you can see from the name, the technology is pressure welded. First we put the bearing bar/flat bar into the mould, the cross bar in the machine, then 2 cross bars will come out, by high temperature the cross bars will be welded into the bearing bars.See below pic for reference.

Galvanized steel grating, is steel grating being hot dip galvanized.Steel grating, is also named as metal bar grating, it is made by welding flat steel and bars with certain distances. Metal bar grating can be defined as a series of metal bars positioned vertically, placed an equal distance apart and joined by cross bars or twisted rods members to form a rectangular pattern. Typically manufactured from mild carbon steel, The products are used broadly across many industrial and commercial applications. Common uses range from walkways, platforms, trench covers, fences, and other properties. We supply standard panels and customized gratings as per clients requirements. Hot dipped zinc coating gives protection for steel grating, it can prevent steel grating from rust.

1) Bearing Bar (Load Bar) Specifications (mm):
The specification of plain type and serrated type bearing bar is 20 x 3 to 100 x 10; The specification of I-section type is 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.

2) 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 etc, also be according to client's requirement and 30, 40, 60mm are recommended,
America standard is 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 so on. >

3) Cross Bar Pitch (center to center):
38.1, 40, 50, 60, 76, 80, 90, 100, 101.6, 102, 135mm and so on

4) Material:
Mild Steel (Low Carbon Steel) or Stainless Steel

5) Surface Treatment:
Untreated, Painting or Hot DIP Galvanizing

6) Steel grating standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1985
E) Japan: JJS.

• Specifications of serrated welded steel grating

• Materials: low carbon steel, stainless steel.
• Surface treatment: galvanized, powder coating, painted color.
• Height of bearing bar: 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm.
• Thickness of bearing bar: 2 mm, 3 mm, 4 mm, 5 mm.
• Mesh size: 34 mm × 38 mm
• Packaging:Strap packing.
• Pallet packing.
  Screw rod fixation.
  Features of serrated welded steel grating

TOP SURFACE
Typically supplied with a plain surface. On our most popular products a Serrated surface (S) is also available. Please refer to the loading charts in this section of the catalogue to see which Mild Steel grating types are available with a Serrated surface.


Learn Steel Grating

Features of heavy-duty steel grating

• High strength and resistance to stress.
• High bearing capacity it can carry the things of 3 to 60 tons.
• Non-slip, anti-corrosion.
• Durable and safe.
• Easy to install and disassemble extend the lifespan.

Steel grating standard:

Type of Steel Grating

Comparison of Feature:

Process of steel grating:

Manufacturing Tolerance of the Gratings

There is no maximum allowable tolerance for every dimension given here.