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ISO 9001 Stair Tread Grating Galvanized Mede By Welded Steel Grating
Product Name:Stair Tread Grating Galvanized
Stair Tread Grating Galvanized Standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1985
E) Japan: JJS.
How to order Stair Tread Grating Galvanized:
Bearing Bar Size:tell me the bearing bar thickness and depth(space)and the cross rods center to center
Bearing Bar Type :Bearing bar surface Serrated or Smooth
Stair Stead Type: the stair stead type:T1 T2 T3 T4
Stair Stead Size: Type size (width and Length )
Material:Steel, Stainless Steel,Or Aluminum
Package: Pallet
Surface Treatment: Mill, Black Paint,Or Galvanized
Stair Tread Grating Galvanized Detail:
Galvanized Industrial Stair Treads made of various types to any length and width, which are also
available in either serrated or smooth grating.developed a new type of steel grating stair tread Stair Tread" in accordance with our client's project
specifications.Stair Treads have bolted end plates measuring 65mmX5mm or 83mmX5mm and yellow abrasive nosing measuring
30mmX70mmX3mm.
Stair Tread Grating Galvanized Specifications:
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
| T1 | Without Nosing, Welding fixing |
| T2 | Without Nosing, Bolted fixing |
| T3 | Checkered Plate Nosing, Welding fixing |
| T4 | Checkered Plate Nosing, Bolted fixing |
| Item | Recommended stair treads width (mm) | ||||||
| T1/T2/T3/T4 Bearing bar pitch at 30mm | 95 | 125 | 155 | 185 | 215 | 245 | 275 |
| T1/T2 Bearing bar pitch at 40mm T3/T4 | 125 | 165 | 205 | 245 | 285 | ||
| 115 | 155 | 195 | 235 | 275 | |||
| Fixing hole center(mm) | 45 | 75 | 100 | 150 | |||
Stair Tread Grating Galvanized Picture:
