Steel Steps Grating From China Supplier Steel Drainage Cover Metal Channel Steel Manhole Cover Floor Drain Cover Ditch Cover Sewage Cover Grating Steel Drainage

• Customization: Available
• After-sales Service: Any Time
• Warranty: Any Time
• Model NO.: T1 t 2 t3 t4
• Certification: ISO
• Application: Steel Structure Walkway, Foot Pedal, Drain Cover
• Shape: Flat Shape
• Manufacturing Method: Machine Welding
• Material: Carbon Steel
• Place of Origin: Hebei Anping
• Type: T1, T2, T3, T4
• Installation: Bolted, Welded
• Quality Certificate: ISO9001
• Quality Standard: UK, Au, Ja, Euro
• Surface Treatment: Mill Finish, Galvanized, Painted, PVC
• Transport Package: Steel Belt
• Specification: ISO9001
• Trademark: Jiuwang
• Origin: Hebei Anping
• HS Code: 730890
• Production Capacity: 10000PCS

Product Description

 
1.Profile
We manufacture different styles of stair ladders that used in family,industry and construction.
Material: mill steel black and hot dip Galvanizing / and stainless grating
Usage: ladder, flooring walkway, platform ,steel structures, stair tread, well cover, trench cover, sump cover,compound gratings, storage shelves,fences and handrail so on for construction project, oil project, seaport, power plant, water plant, defense project, chemical factory and so on.

2.steel stair treads type.

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

3.steel stair treads specification

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

Max. Stair treads lengths

Steel grating specification Bearing bar size	25*3	25*5	32*5
Bearing bar pitch30mm	550	900	1300
Bearing bar pitch 40mm	450	750	1200

Recommend stair tread widths

T1,T2,T3,T4 Bearing bar pitch 30mm	95	125	155	185	215	245	275
T1,T2,T3,T4 Bearing bar pitch 40mm		125	165		205	245	285
		115	155		195	235	275
Fixing hole centers	45		75		100		150

Note:bearing bar thickness 5mm
4.steel stair treads introduction

Bearing bar type	Flat bar	I bar	Serrated bar
Cross bar type	Twisted bar	Round bar	flat bar
Production process	welded	Pressure locked
Surface treatment	Self-colour	Galvanized	painted
application	Platform	walkway&floor	Trench cover	Steel stair treads
	Suspended ceiling	Barrier fence

4.steel grating standard-- steel stair treads

Steel Grating  Standard
	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
Deutsche Standard	DIN24537	DIN17100-80	DIN50976

5.our company profile

Hebei Jiuwang Metal Wire Mesh Co.,Ltd.(original Anping County Jintai Metal Mesh Co.,Ltd.).Established in 1992,our company is a manufacturer of large steel structure and steel gratings,integrating development,production and distribution.The company register capital is 10,080,000 Yuan,and take an area of 34,680 square meters.In 2003,we have got the ISO9001:2000 certification by BQR.
6.steel grating application