~Packaging & Delivery 5
PackagingDetails:Pallets in containers packed by steel strap and worthy sea shipping, or according to the customers' requirements
Delivery Detail: 10-20 days after order confirmation.
How to order:
1.Kindly indicate the specifications ,sizes ,quantities ,and required surface treatment of steel grating.
2.Give type and quantity of fastener .In principle ,each piece of grating needs four set of fasteners.
3.Please offer construction plan when big floor areas are required to cover with steel gratings .Also provide constructional elevation drawing and joint details as well as the section size and location of supporting steel beam ,if any openings are required on such floor areas.
4.When ordering stair treads ,please state out types of stair treads ,and the specification ,length ,width ,quantity and required surface treatment for gratings used.
5.For more information ,please contact our company’s sales department .We shall du our best to help you.
~Specification 1
Recommended Stair Tread Widths
T1、T2、T3、T4、T5、T6
Bearing bars at 30mm pitch 95 125 155 185 215 245 275
T1、T2、T5、T6
Bearing bars at 40mm pitch
T3, T4  125 165  205 245 285
  115 155  195 235 275
Fixing hole centers 45 75 100 150
Note： based on 5mm bearing bars.
Max. Stair Tread Lengths
                   
                  Bearing bar measure

Steel grating specification 253 25×5 32×5
Bearing bars at 30mm pitch 550 900 1300
Bearing bars at 40mm pitch 450 750 1200

Our company produces complete steel ladders with guardrail, which are made of grating treads. When specifying the steel ladders, please refer to the national general standard construction drawing 87J432. According to the presence of the nosing and the methods of mounting to stringers, grating treads are classified into six types, expressed as T1, T2, T3, T4, T5 and T6. In view of economics, it is advisable to use the recommended lengths and widths below.

~Feature 1
1. Easy installation, nothing complicated
2. Good Ventilation, lighting, cooling, explosion-proof, non-slip performance
3. High strength, light structure, durable
4. Easy cleaning, anti-dust and dirt
~Stair tread
1、Material：Low carbon steel, stainless steel
2、Surface treatment：Hot-dipped galvanized，painted, untreated
Surface Process of Gratings
1)Hot-dipped galvanizing
Normally, hot-dipped galvanizing will be carried out after end welding process. When the thickness of bearing bars is not less than 5mm,the weight of average Zinc Layer will not be less than 610g/m^2.When the thickness of bearing bars is less than 5mm,the weight of average Zinc Layer will not be less than 460g/m^2.The quality and requirements after hot-dipped galvanizing are according to the standards of GB/T13912
Note: In the range of PH6 to PH12.5,a stable protective film will be formed on the zinc surface. It has good anti-corrosive property.
2)Lacquering
Gain protection layer through the ways of spraying, brushing and soaking.
3)Electro Galvanizing
4)Anti-rust Oil Coating
5)Untreated
3、Min. order(MOQ): 10 pcs
4、Supply ability:100tons per day
5、price range:700-950 per ton
6、Payment terms: L/C, TT,D/P,D/A, WESTEN UNION
7、Delivery time: 10-20days after confirmation
HS Code:73089000
YC-SG02
8、Product description
Product description 1
Welded Bar Grating is made of flat steel and bars by welding with certain distances. The bearing bars are automatically resistance welded at the contact point with the cross bars and, under a combination of high heat and pressure, are fused together to form a permanent joint. The cross bars provide a high degree of rigidity, yet retain a smooth flat surface for free and easy walking.