1. Compound steel grating is composed of checkered plated on sealed surface& steel grating with certain spanning capability.
2. Compound steel grating is formed of any type of steel grating and checkered plate in different thickness. The type JG323/40/100, JG 253/40/100 AND JG323/60/100 are generally used as base, the checkered plated with 3mm thickness is used as sealing plated. Sometimes checkered plated with thickness of 4mm, 5mm, 6mm. As request.
3. As thermal stress may cause shape distortion after hot-DIP-galvanized treatment, esp. When choosing large space grating, it's not easy to flattern. So special attention should be payied when choosing grating types.
| Item No. |
Bearing Bar Pitch |
Cross Bar Pitch |
Specification of bearing bar load width× thickness |
| 20×3 |
25×3 |
32×3 |
40×3 |
20×5 |
25×5 |
|
| 1 |
30 |
100 |
G203/30/100 |
G253/30/100 |
G323/30/100 |
G403/30/100 |
G205/30/100 |
G255/30/100 |
|
| 50 |
G203/30/50 |
G253/30/50 |
G323/30/50 |
G403/30/50 |
G205/30/50 |
G255/30/50 |
|
| 2 |
40 |
100 |
G203/40/100 |
G253/40/100 |
G323/40/100 |
G403/40/100 |
G205/40/100 |
G255/40/100 |
|
| 50 |
G203/40/50 |
G253/40/50 |
G323/40/50 |
G403/40/50 |
G205/40/50 |
G255/40/50 |
|
| 3 |
60 |
50 |
|
G253/60/50 |
G253/60/50 |
G403/60/50 |
G205/60/50 |
G255/60/50 |
|
| Item No. |
Bearing Bar
Pitch |
Cross Bar Pitch |
Specification of bearing bar load width× thickness |
| 32×5 |
40×5 |
45×5 |
50×5 |
55×5 |
60×5 |
|
| 1 |
30 |
100 |
G325/30/100 |
G405/30/100 |
G455/30/100 |
G505/30/100 |
G555/30/100 |
G605/30/100 |
|
| 50 |
G325/30/50 |
G405/30/50 |
G455/30/50 |
G505/30/50 |
G555/30/50 |
G605/30/50 |
|
| 2 |
40 |
100 |
G325/40/100 |
G405/40/100 |
G455/40/100 |
G505/40/100 |
G555/40/100 |
G605/40/100 |
|
| 50 |
G325/40/50 |
G405/40/50 |
G455/40/50 |
G505/40/50 |
G555/40/50 |
G605/40/50 |
|
| 3 |
60 |
50 |
G325/60/50 |
G405/60/50 |
G455/60/50 |
G505/60/50 |
G555/60/50 |
G605/60/50 |
|
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