Factory direct sale hot dip galvanize steel grating prices 

 Our company has more than ten years experience in manufacturing and exporting steel grating productions with high quality and competitive price and faster delivery time. 

2.Specification of hot dip galvanized steel grating

1>Material :Q235 steel and steel rod.Stainless steel.

2>Surface process: hot-dipped galvanized ,PVC coating,black paintting.

3>Shape of bearing bar: plain or serrated  type.

Steel Grating size	1mX2m to 1.5mX11m or on your request.
Bearing Bar (Load Bar)  thickness and depth(mm)	20 x 3 to 100 x 10 etc.
Bearing Bar Pitch (center to center)	according to client's requirement and  30, 40, 60mm are recommended.
Cross bar pitch(center to center)	38.1, 40, 50, 60, 76, 80, 100, 101.6, 120mm, 2' ' & 4' ' etc.

3.The manufacturing process of  steel grating

The factory of our company has strong ability in manufacturing production by large quantity. We can assure you about the quality with competitive price,and we can manufacture all kinds of galvanized steel grating.

  Different Welding Styles

 

4.The application of  steel grating

The products are widely used in steel structure platforms,stair treads, floors, drainages, well covers , sidewalks,decks etc. We can also design and manufacture special gratings on our customer's requirement.

Manufacture process of our steel grating

Steel structure

5. Hot dip galvanized steel grating advantages

(1)Attractive appearance: Simple outline.silver colour,and modern.

(2)Optimum water draining: Water leakage area is 83%,which is two times larger  than that of cast iron.

(3)Hot dip galvanized surface:Good anti-rust performance,maintain free and replace free.

(4)Saving investment: With large span,the cost is lower than that of cast iron when under heavy load.

(5)High strength:With strength: With strength and toughness far higher than those of cast iron,it can be used in the environment with large span  and heavy load,such as the wharf and the airport.

(6)Many specifications available: The requirement of different environments,loads, spans,sizes and shapes can be satisfied.

6.hot dip galvanzied steel grating standards

 

	Steel grating standard	Steel standard	Galvanizing standard
China standard	YB/T 4001.1-2007	GB700-88	GB/T13912-2002
USA standard	ANSI/NAAMM(MBG531)	ASTM(A36)	ASTM(A123)
U.K. standard	BS4592	BS4360(43A)	BS729
Australia standard	AS1657	AS3679	AS1650

 

7.Hot dip galvanized steel grating tolerance

The allowed deviation of length is +0/-5mm, while the allowed deviation of width is +/-5 mm. 
The non-perpendicularity of bearing bar is allowed no more than 10% of width of bearing bar. 
Cross bar surface should not surpass bearing bar surface 1mm, beginning & end of cross bar should not surpass the end surfaces of two sides of grating 2mm. 

 

 Payment: 30% by T/T in advance, the balance by T/T against the fax copy of B/L.

 

 Why choose Haiao ?

 

1)We have a standard manufacturing line and a complete quality ensuring system for hot dip galvanized steel grating reaching your  requirements.

 

2)We own most advanced production equipments.The CNC press-welding meshine is controled by computers.

 

3)We have more than ten years experiences about manufacturing and exporting.

 

4)We own more than ten senior engineers,they can promise our product technology in the industry in a leading level.

 

Contact with me for more questions of hot dip galvanized steel grating