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Galvanized steel grating for metal building materials 30x3,32x5 Galvanized Steel Grate/Grating

Hebei Qijie Wire Mesh MFG Co.,ltd.
Hebei Qijie Wire Mesh MFG Co.,ltd.
Province/State: Hebei
Country/Region: China
Tel: 86-318-8099652
Contact Person:
Mr Devin Wang

Galvanized steel grating for metal building materials 30x3,32x5 Galvanized Steel Grate/Grating

Brand Name : Xmesh
Model Number : steel grating
Certification : steel grating
Place of Origin : China
MOQ : 100pcs
Price : usd35/pcs
Payment Terms : TT
Supply Ability : 1000pcs
Delivery Time : 5work days
Packaging Details : PALLETS IN CONTAINER OR ACCORDING TO CUSTOM'S REQUIRMENTS.
Material : steel plate
Application : Steel Walkway And Floor
Color : silver
Standard : ASTM A1011
Surface treatment : Galvanizing,black, paited
steel product standards : CN:GB700-88,USA:ASTM-A36
Used for : Platform,sidwalk etc
Tolerance : within d3mm
Steel grating standard : YB/T4001,AMSI,BS4592
Product name : Steel Bar Grating
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Galv welded grating floor, galvanized steel grid floor


Steel grating is welded by the world first-class equipment,which can arrange the bearing bar and cross bar

in longitude and latitude order to certain distance.cross bar is pressed into the bearing bar by high

tension resistance weldingring which is controlled by computer.so we can produce high quality gratings

withfirm welding,smooth surface and high strength.


1.material: low carbon steel,mid steel or stainless steel

2.Surface Treatment: Untreated, Painting or Hot dip Galvanizing

3.Specification of steel grating

(1)The shape of bearing bar: Plain type (may be omitted in the symbol of steel grating), Serrated type and I-Shape type


NoItemDescription
1Bearing bar25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm
2Bear bar pitch

12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40,41,60mm.

US standard: 1"x3/16", 1 1/4"x3/16", 1 1/2"x3/16", 1"x 1/4", 1 1/4"x 1/4",

1 1/2"x 1/4" etc.

3Cross bar pitch38,50,76,100,101.6mm
4MaterialQ235,A36,SS304
5Surface treatmentBlack, hot dipped galvanising, paint
6StandardChina: YB/T 4001.1-2007
USA: ANSI/NAAMM(MBG531-88)
UK: BS4592-1987
Australia: AS1657-1985

4.Tolerance of hot dip galvanized steel grating

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.


5. steel grating application

Steel grating used in flooring, catwalk, mezzanines/decking, stair tread, fencing, ramp, dock, trench cover, drainage pit

cover, maintenance platform,

pedestrian/crowded pedestrian, factory, workshop, motor rooms, trolley channel, heavy loading area, boiler equipment

and heavy equipment area, office buildings,

apartments, train stations, department stores, hospitals,amusement parks,etc


Stainless Steel Bar Grating

Stainless Bar Grating, is extremely strong, durable and corrosive resistant for all load bearing applications and is primarily used for pedestrian and light vehicle traffic. Welded stainless bar grating is available in a variety of bearing bar spacing and thicknesses depending on applications and load requirements. Available in either smooth top or serrated for slip resistance. See PDF specification sheet below for stainless bar grating load tables.
  • Specifications: 19S4 / 19SW4, 304 Stainless Steel
Custom Sizes and configurations are also available - Stair Treads, Trench Covers, etc.

Aluminum Bar Grating

Aluminum Bar Grating, also known as Swagged Aluminum Bar Grate it is light weight, yet strong and durable for all load bearing applications that need high corrosion resistance. Aluminum gratingis available in a variety of bearing bar spacing, thicknesses and heights depending on applications and load requirements.Available in either smooth top or serrated for added slip resistance. See PDF specification sheet below for aluminum bar grating load tables.
  • Specifications: 19SR4 / 19AS4, Alloy 6063-T6 for bearing bars per ASTM B-221, Alloy 6063 for cross bars per ASTM B-221

Steel Bar Grating

Steel Bar Grating, also known as Welded Steel Bar Grate is extremely strong and durable for all load bearing applications and is primarily used for pedestrian and light vehicle traffic. Steel bar grating is available in a variety of bearing bar spacing and thicknesses depending on applications and load requirements. Available in either smooth top or serrated for slip resistance. See PDF specification sheet below for steel bar grating load tables.
  • Specifications: 19W4, Carbon Steel, Painted Black


1) Steel grating Material:
Mild Steel (Low Carbon Steel) ( GB700,ASTM(A36),BS4360(43A) )

2) Surface Treatment:
Hot dip Galvanizing ( GB/T13912,ASTM(A123),BS729 )
3) Steel grating standards:
A) China: YB/T4001
B) USA: ANSI/NAAMM (MBG531)
C) UK: BS4592
D) Australia: AS1657
E) Japan: JJS


Bar Size Inches:Weight Per Sq. Ft:Sect. Prop. Ft. of Width:
3/4 x 3/165.67Sx=0.194 / 1x=0.73
1 x 1/85.15Sx=0.228 / 1x=0.114
1 x 3/167.35Sx=0.344 / 1x=0.171
1-1/4 x 1/86.2Sx=0.358 / 1x=0.223
1-1/4 x 3/169.03Sx=0.536 / 1x=0.335
1-1/2 x 1/87.35Sx=0.515 / 1x=0.387
1-1/2 x 3/1610.94Sx=0.773 / 1x=0.579
1-3/4 x 3/1612.62Sx=1.052 / 1x=0.902
2 x 3/1614.30Sx=1.375 / 1x=1.375
2-1/4 x 3/1615.87Sx=1.740 / 1x=1.958
2-1/2 x 3/1617.55Sx=2.148 / 1x=2.685
Note: Sx = (Sec. Mod. Ft Width) 1x = (Mom. of Inertia Ft. Width)






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Galvanized steel grating for metal building materials 30x3,32x5 Galvanized Steel Grate/Grating Images

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