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Material: Carbon Steel or Stainless Steel,Q235, ASTM A36 ,A1011,A569, SS304 ,S275JR, SS400.
Production Technology: pressure welding→cutting→welding end bar→galvanizing
Surface Treatment: hot dipped galvanized; Untreated (black self-color); Painted;
Product range:
1)Plain Style Steel Grating, 2)Serrated Style Steel Grating 3) I Bar Type Steel Grating
Popular Specification:
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Item
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Description
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1.Load Bearing bar(mm)
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the size of plain and serrated bar:
25x3,25x4,303,304,305,32x5,405,505,75x10mm,etc.
(Thickness≥3mm, depth ≥19mm)
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the size of I-section bar:
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.
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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
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2.Pitch of bearing bars(mm)
(center to center)
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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.(30, 40, 60mm are common)
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US standard: 19-w-4, 19-w-2, 15-w-4, 15-w-2,13-w-4, 13-w-2, 11-w-4,11-w-2. etc.
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3.Cross Bar:
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5mm , 6mm , 8mm Twisted square steel rod.
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4.Pitch of Cross bar
(center to center)
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38,50,76,100,101.6mm
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5.Standard:
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China: YB/T 4001.1-2007
USA: ANSI/NAAMM(MBG531-88)
UK: BS4592-1987
Australia: AS1657-1985
JAPAN: JS3101
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7.Feature: high strength,Impact resistance and strong ability of stress; good ventilating;
anti-skidding;Anti-rust, Anti-oxidation corrosion.
8.Application: they are widely used in steel structure platforms, stair treads, sidewalks,
drainage and well covers,ceiling of building; widely used in petroleum, chemical industry, electricity,
paper making, medicine, etc.
drainage and well covers,ceiling of building; widely used in petroleum, chemical industry, electricity,
paper making, medicine, etc.
