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| Categories | Galvanized Steel Stair Treads |
|---|---|
| Brand Name: | GNEE |
| Certification: | SGS |
| Place of Origin: | China |
| Price: | Negotiable |
| Payment Terms: | Negotiable |
| Supply Ability: | 100 ton/week |
| Delivery Time: | 5-9 working days |
| Packaging Details: | Sea-worthy packing, ie wooden or steel tray with steel strip,etc |
| Company Info. |
| Gnee Steel (tianjin) Co., Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
stair treads steel grating is made by bearing bar and cross bar
according to the flat-steel weft arrangement, in high-pressure
spacing on resistance welder welded by cutting, incision, opening,
overlock process such as processing and into customer
requirements finished products. It's usually used in industrial
construction projects. We have 4 types for choose, there is welded
fixing stair treads, clip fixing galvanized stair treads, checker
plate stair treads.

1)There are four kinds of stair treads T1,T2,T3,T4.
T1 Welded fixing and Without nosing
T2 Bolted fixing and without nosing,easy to installation and teardown.
T3 Welded fixing and with checkered plate nosing, can be skid.
T4 Bolted fxing and with checkered plate nosing, easy be installation,
teardown and can be skid.
2) Material: Mild Steel (Low Carbon Steel) or Stainless Steel
3) Surface Treatment:
Untreated, Painting ,Powder coated or Hot dip Galvanizing
4) Steel grating standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1988
E) Japan: JJS

| Pitch of Bearing bar | Cross-bar Pitch | Specification of bearing bar load(width×thickness) | |||||
| 32×5 | 40×5 | 45×5 | 50×5 | 55×5 | 60×5 | ||
| 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 | |
| 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 | |
| 60 | 50 | G325/60/50 | G405/60/50 | G455/60/50 | G505/60/50 | G555/60/50 | G605/60/50 |


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