Hot Dipped Galvanized Mild Steel Bar Grating Stair Tread
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Hot Dipped Galvanized Mild Steel Bar Grating Stair Tread

FOB Price: $8 - $12/Piece
Min. Order: 10 Pieces
Port: Ningbo, China
Production Capacity: 100000
Payment Terms: L/C, T/T
Model No.: 2006-T018
  • Serrated Type, I Type, Plain Type

  • Ningbo China

  • Untreated, Galvanized, Painted, PVC

  • Automatic Indepandant Product Line

  • Packaged by Steel Belt with Pallet

  • as Per Your Requirments

  • Global

  • Outdoor

1. Material: Stainless or mild steel

2. Finishing: 
Hot Dip Galvanized, Powder Coated, PVC Coated, Self Color, Red Oxide Primer, Other Paints Enamel, Epoxy etc. As specified. 


3. Grating are mainly of two types: 
1). Press locked gratings
2). Electroforged gratings
I)Stair Threads
Ii) Accessories
Iii) Metal Finish Description

4. Cross bars and bearing bars
The bearing bar steel is of two types which are produced in equivalent standard. 
Plain: The top surface is smooth & plain. 
Serrated: The top surface is serrated for providing more anti slip Property. 
Width: 25mm, 30mm, 32mm, 40mm
Thickness: 3mm, 5 mm, 6mm


5. Centre to Centre Bearing Bar Spacing: 
This is the centre distance between two adducent bearing bar, Standard Size 30/ 33 / 41 mm Cross Bar: 
The cross bar steel is of two types
Round
Square Twisted: Normally Square twisted bar is used because it provides anti skidding property. Normally cross bar size is of 6mm. 


6. Application: 
Galvanized steel grating are widely used by various plants such as electric power, petroleum, chemical industry, metallurgy industry, machinery industry, shipbuilding, harbor, oceanographic engineering, building, paper mills, cement plant, medicine, spinning and weaving, foodstuff factory, transportation, municipal administration, parking lot, etc.

Specifications of steel gratings
No Item Description
1 Bearing bar 20x5, 25x3, 25x4, 25x5, 30x3, 30x4, 30x5, 32x3, 32x5, 40x5, 50^75x8mm, etc.
2 Bearing bar pitch 25, 30, 30.16, 32.5, 34.3, 40, 50, 60, 62, 65mm, etc.
3 Cross bar 5x5, 6x6, 8x8mm (twisted bar or round bar)
4 Cross bar pitch 40, 50, 60, 65, 76, 100, 101.6, 120, 130mm or as customers' requirement.
5 Surface treatment Black, Hot dip galvanized, Cold dip galvanized, Painted, Powder coated, or as customers' requirement.
6 Flat bar type Plain, Serrated (tooth-like), I bar (I section)
7 Material standard Low carbon steel ( ASTM A36, A1011, A569, S275JR, SS304, SS400, UK: 43A)
8 Galvanizing standard CN: GB/T13912, US: ASTM (A123), UK: BS729
9 Steel grating standards A. China: YB/T4001-1998
B. USA: ANSI/NAAMM (MBG 531-88)
C. UK: BS4592-1987
D. Australia: AS1657-1988
E: Japan: JJS

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