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galvanised steel stair treads

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galvanised steel stair treads

T4 T5 Galvanised Steel Stair Treads With Checkered Plate For Industry Floor

  • T4 T5 Galvanised Steel Stair Treads With Checkered Plate For Industry Floor
  • T4 T5 Galvanised Steel Stair Treads With Checkered Plate For Industry Floor
Product Details:

hot dipped galvanized steel grating used for stair tread

Description

Stair tread is made of steel grating& widely used for different types ofsteel ladders,feature easy installation,strong structure&aeatheic appearance&good water permeability.We can fabricate according customer'size.
Bearing Bar
25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc
I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc
US standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'', 1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1 1/2''x1/8'' etc


Bearing Bar Pitch

12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc.

Grating Style

Plain / Smooth, Serrated /teeth, I bar, serrated I bar

Features for grille stair tread:

 

1. Easy for assembly and disassembly.

 

2. Good ventilation of air and light, heat dissipation.

 

3. Anti-slip & anti-explosion.

 

4. Easy for maintenance.

 

5. The aiti-slip treads possess unmatched slip resistance property, which are suitable for using in wet and slippery places like the offshore oil production platform.

 

6. The HDG surface provide strong antirust capacity with service life upto 30 years without any maintenance.

 

7. High drainage rate.

 

Application


It can be used in factory platform,walkway ,and other places.

Product Name
Galvanized steel stair treads
Material
Low carbon steel
Grade
CN: Q235, US: A36, UK: 43A
Standard
CN: YB/T4001-1998, US: ANSI/NAAMM, UK: BS4592-1987, AUS1657-1988, JJS
Certification
CE, GOST, ISO9001, ISO14001, HSE
Bearing bar size
20X3, 25X3, 25X4, 25X5, 30X3, 30X4, 30X5, 32X3, 32X5, 40X5, 50X4... 75X8mm, etc
Bearing bar pitch
20,25,30,32.5,34.3,40,50,60,62,65mm
Bearing bar type
Plain, Serrated (tooth-like), I bar (I section), Serrated-I
Cross bar size
5X5, 6X6, 8X8mm (twisted bar)/5, 6, 8mm ( round bar)
Cross bar pitch
40, 50, 60, 65, 76, 100, 101.6, 120, 130mm, etc.
Surface treatment
Black, self colour, hot dip galvanized, painted, spray coating
Galvanization Standard
CN: GB/T13912, US: ASTM (A123), UK: BS729
Color
Silver
Application
power plants, shipbuilding, large equipment, industrial constructions

SGS Outdoor Galvanised Steel Stair Treads Hot Dip Galvanized Surface For Walkway

  • SGS Outdoor Galvanised Steel Stair Treads Hot Dip Galvanized Surface For Walkway
  • SGS Outdoor Galvanised Steel Stair Treads Hot Dip Galvanized Surface For Walkway
Product Details:

Hot dip galvanizing galvanized outdoor steel grating stair treads

 

We produce three kinds of steel gratings, they are Plain Style Steel Grating, Serrated Style Steel Grating and I Bar Type Steel Grating. They are widely used in steel structure platforms, stair treads, sidewalks, drainages and well covers etc. We can design and manufacture standard steel grating and in customized shapes per client's requirements.

 

 

1) Bearing Bar (Load Bar) Specifications (mm):

The specification of plain type and serrated type bearing bar is 20 x 3 to 100 x 10;the specification of I-section type is 25 x 5 x 3, 32 x 5 x 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x 7 x 4, 60 x 7 x 4, 65 x 7 x 4, 70 x 7 x 4, 75 x 7 x 4, etc.

 

2) Bearing Bar Pitch (center to center):

12.5, 15,25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, also be according to client's requirement and 30, 40, 60mm are recommended,

 

America standard is available <1'' x 3/16'', 1 1/4'' x 3/16'', 1-1/2'' x 3/16'', 1'' x 1/4'', 1-1/4'' x 1/4'', 1 1/2'' x 1/4''(19-w-4),(19-w-2) and so on.>

 

3) Cross Bar Pitch (center to center):

38, 50, 76, 100, 101.6mm etc, also be according to client's requirement and 50, 100mm are recommended, America standard is available.

 

4) Material:

Mild Steel (Low Carbon Steel) or Stainless Steel

 

 

5) Surface Treatment:

Untreated, Painting or Hot dip Galvanizing

 

 

6) Steel grating standards:

A) China: YB/T4001-1998

B) USA: ANSI/NAAMM (MBG531-88)

C) UK: BS4592-1987

D) Australia: AS1657-1985

 

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:40mm

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 section 25*3 25*5 32*5
Bearing bar pitch:30mm 550mm 900mm 1300mm
Bearing bar pitch:40mm 450mm 750mm 1200mm

 

  Welded steel grating, pressure-locked, socket-welding
Steel flat size 20×3,25×3,25×5,30×3,30×4,30×5,32×3,32×5……45×5mm
Beraing bar pitch 12.5,15,20,25,30,35,40,50mm
Cross bar pitch 38,50,80,100mm
material Low carbon steel, stainless steel, aluminium
Surface treatment Untreated, hot galvanized, painted
Standards

China: YB/T 4001.1-2007

USA: ANSI/NAAMM(MBG531-88)

UK: BS4592-1987

Australia: AS 1657-1985

 

Anti Slip Surface Perforated Galvanized Steel Stair Treads with 1.5 - 5mm Thickness

  • Anti Slip Surface Perforated Galvanized Steel Stair Treads with 1.5 - 5mm Thickness
  • Anti Slip Surface Perforated Galvanized Steel Stair Treads with 1.5 - 5mm Thickness
Product Details:

Galvanised steel stair treads perforated metal mesh ladder step

Perforated metal specification

1. Plate selection
When select the plate, make sure that take both application requirement and product cost into consideration.

If you’d like to reduce the thickness of plate, you’d better use the alloy materials with slightly higher price.

At the same time the hardness and strength of plate directly determines the sizes and arrangement of holes.

We can supply the plate materials as follows: Stainless Steel plate, High or Low carbon Steel Plate,

Galvanized Plate, Zinc Plate, Aluminum Plate, Aluminum Alloy Plate, Mg-Al Plate and Nickel Plate ,etc.
2. Aperture
In general it is advisable to use a hole size larger than the material thickness. That is, to meet the minimum

aperture principle. The closer the hole size and material thickness,

the more difficult and expensive the process is. Dependent on the material type,

smaller hole size to material ratios can be achieved. The minimum diameter we can fabricate is 0.8mm.

If you have the special need,we wil try best to meet your need with the most reasonable price and the most

quality products.
3. Hole spacing
Hole center is the distance from the center of one hole to the center of the nearest hole

in the next adjoining row.

Hole spacing is a way to indicate hole center, another way is opening area.

Both the significance of two methods is the same. You only need to determine either of both.
4 .Plate specification
The thin plate is easier to perforate and the price is relatively low. According to the principle of minimum

diameter,

the suitable thickness is more conductive to increasing the compressive strength. In general,

the plate has the tolerance,

we can manufacture a wide rang of thick sheet verifying from 0.1mm to 2.5 mm thickness Sheet width

maximum 1200mm.

Length is the overall measurement of the long side of the sheet.

Width is the overall measurement of the -short side of the sheet.

The standard sheet size is 1000mm*2000mm. The coil width 1000mm is also available.

We also can process the special product for your requirement if you tell us the exact specification.
5. Opening area
Clearly, open area is the total area of the holes divided by the total area of the sheet and is expressed as a percent ,

Keep in mind that punching holes in a material add stresses that can result in distortion of the product.

The higher the open area, the more material distortion takes place,

especially when the perforated pattern is bordered by margins on all four sides.

But these distortions can be removed by our special in house leveling process.

Therefore, the flatness request of products wlill be sent after you take careful consideration in it.
6. Margins
Margins are the blank area along the edges of the sheet. In general, the long sides of plate need the margins,

and the short sides not. If you want the product with special margins,you should provide the width of each margin

on all four sides (measured from the edge of the sheet to the edge of the first hole).

Manufacturing considerations may affect margins. If the margins requested are not possible.

We will replace it with the similar products as your consideration.
7. Tolerance
There are tolerances on thickness, pitch, openings, flatness, and shearing for perforated products.

It is the same as other production process, The higher the request about tolerance,

the price of the products will be higher relatively.

You should specify a specific tolerance, so we can give you a precise product.

If not, we will according to standard tolerance.


Anti-skid stair treads specification

Thickness:generally 2mm, 2.5mm, 3.0mm

Width: 300mm, 500mm, 800mm, 1000mm

Length: 1m, 2m, 2.5m, 3.0m, 3.66m

Height: 20mm, 40mm, 45mm, 50mm, also can produce as customized bending height.

Material: Low carbon steel, SPHC, Aluminum,Galvanized Plate, Stainless Steel sheet.

Production technique: Punching, cutting, bending, welding, shape.

(Both Electro galvanized and Hot Dipped galvanized surface treatment are available for low carbon steel material)

Features: anti-skid, anti-rust and anti-corrosion, durable and sturdy application shows beautiful appearance.

Application: used well for sewage treatment, for running water and power plant, also used for outdoor of many other lines,

such as safety grating for vehicles, steppes for train, safety stair treads for machines and for interior decoration

 

Name Steel Perforated Stair Tread
Material Stainless steel,Mild steel,galvanized steel,aluminum,copper,etc.
Length 2000mm,2438mm,3048mm,6000m
Width 1000mm,1219mm,1500mm,1524mm
Shaped hole Alligator mouth hole, round,drum-type
Feature Anti-corrosion; skid resistance;drainage

30 X 3 Safe Galvanized Steel Stair Treads For Heavy Duty Light Weight

  • 30 X 3 Safe Galvanized Steel Stair Treads For Heavy Duty Light Weight
  • 30 X 3 Safe Galvanized Steel Stair Treads For Heavy Duty Light Weight
Product Details:

Heavy duty 30x3 hot dipped galvanized outdoor steel grating stair treads

 

Description

 

Steel Grating is made by Carbon or mild steel of certain sizes through the processing of slit cutting, serration-making, press welding, inspecting before galvanization, galvanizing, checking before packing, etc.
Steel grating is designed scientifically and equisitely, is very strong and safe to support floors and walkways. It can be used for ceiling, interior and exterior decoration, platform aisle, ventilation windows, (Wells), advertising plaque and other construction.

 

Specification:

 

1) Bearing bar specification:20*3 to 100*6

2) Bearing bar pitch:12.5,15.30.40.60mm etc,or according customer's requirement.

3) Cross bar pitch:38,50,76,100mm,or according to customer's requirement.

4) Material:mild steel or stainless steel

5) Surface treatment:painting or hot dipped galvanized

Steel stair tread is a kind of open steel plate with its bearing bar & cross bar jointing at intersections either by welding or by locking. It can be manufactured into round, square, rectangle or other shapes. Widely used in stairways of steel structures and steel ladders, this stair tread is significantly easier to install and maintain. We can provide various standard products and are happy to fulfill customized orders.

rating standard China YB/T4001-1998(YB/T4001.1-2007)
Britain BS4592-1:1995
American ANSI/NAAMM(MBG531-93)
Australia AS1657-1992
     
Galvanized standard China GB/T13912-2002
Britain BS729
American ASTM A123/A123M-97a
Australia AS1650

 

Load Bearing Flat Bar size Thickness≥3mm, depth ≥19mm
19X3,19X5,20X3, 20X5, 25X3, 25X4, 25X4.5, 25X4.7, 25X5…..40X6, 40X8, 40X10,….90X6….
Pitch of Load bearding flat bars(mm) 12.5,15, 20, 30, 30.6, 32.5, 34, 34.8, 35.3, 40, 60, 80……
Pitch of cross bars(mm) 38.1, 50, 50.8, 70, 75, 80, 100, 101.6, 102……

Customized Size Galvanised Steel Stair Treads For Walkway / Factory Platform

  • Customized Size Galvanised Steel Stair Treads For Walkway / Factory Platform
Product Details:

Customized Galvanized Steel Stair Tread With ISO9001 CE Certificate

 

Grating treads can be made from any grating pattern or profile, and to any dimensions to suit the relevant stairway. In the interest of economy we suggest that the recommended widths and lengths be used wherever possible.

 

Recommended Stair Tread Widths

 

Pattern and Load Bar selection

The tables below indicate the maximum width and length for stair treads, depending on the combination of material, pattern and load bar selected. Standard stair treads are available ex-stock from Webforge locations; these standard profiles are complimented by a custom manufacturing service.

 

1,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
Contact Details
ANPING BAOSHENG WIRE MESH PRODUCTS CO.,LTD

Contact Person: Mr.

Tel: 86-311-67902761-8:00

Fax: 86-311-67902762

Send your inquiry directly to us (0 / 3000)