Product Description Model NO.: YND--Stair treads Model Number: Galvanized Stair Tread. Galvanized Stair Treads Application: Steel Platform, Grating Flooring and Walkway, Plat Surface Treatment: Hot DIP Gavanized, Painting or Untreatment Grating Size: 3′x20′, 3′x24′, 3′x30′, 1000X1000, 1000X6000,Ect. Transport Package: Steel Tape or in Pieces on a Pallet Origin: Anping, China Type: Galvanized Steel Stair Treads Steel Material: Low Carbon Steel, Mild Steel Steel Standard: ASTM A36 or Q235, Low Carbon Steel, Mild Steel Grating Products: Steel Grating, Gi Grating, Serrated Grating, Drain Trademark: YND Specification: galvanized steel stair treads HS Code: 73269010 Steel Bar Grating:

Specification: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 also available   3) Cross Bar Pitch (center to center):
38, 50, 76, 100, 101.6mm etc, also be according to client's requirement and 50, 100mm are recommended, America standard is available.  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.



7) Our stair treads have 8 types, they are:
1. Stair Tread without Nosing, Welding fixing
2. Stair Tread without Nosing, Bolted fixing
3. Stair Tread with Checkered Plate Nosing, Welding Fixing
4. Stair Tread with Checkered Plate Nosing, Bolted fixing
5. Stair Tread with Vertical Striped Plate Nosing, Welding fixing
6. Stair Tread with Vertical Striped Plate Nosing, Bolted fixing
7. Stair Tread with Perforated Plate Nosing, Welding fixing
8. Stair Tread with Perforated Plate Nosing, Bolted fixing
You can choose any type above, and we also can supply customized products.

Contact us if you need more details on Steel Bar Grating. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Bar Grating、Stair Treads. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Bar Grating