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Stair Tread Power Plant Platform Driveway Steel Outdoor Drain Grating Hot Galvanized

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Stair Tread Power Plant Platform Driveway Steel Outdoor Drain Grating Hot Galvanized

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Brand Name : GNEE

Certification : SGS

Place of Origin : China

Price : Negotiable

Payment Terms : Negotiable

Supply Ability : 100 ton/week

Delivery Time : 5-9 working days

Packaging Details : Sea-worthy packing, ie wooden or steel tray with steel strip,etc

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Steel bar grating with high strength and firm structure is made up of carbon steel, aluminum steel, or stainless steel. According to the manufacturing methods, it can be divided into four types: welded, press-locked, swage-locked, and riveted gratings. According to the surface shapes, it can be divided into smooth and serrated gratings. With various styles and sizes for choice, steel gratings are widely used in everyday life, such as stair treads, walkways, platforms, floors, various covers, wheeled equipment, security screens, heavy-duty constructions, and so on.

1. Description

(1) Structure: Welding with flat steel and cross/round bars with certain distances.
(2) Features: High strength, light structure, high bearing.
(3) Surface: The hot dipped zinc coating gives the product excellent anti-corrosion

Steel Grating Specification

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, 99,100, 101.6, 102...

Stair Tread Power Plant Platform Driveway Steel Outdoor Drain Grating Hot Galvanized

Steel Grating Standard

Country Steel grating standard Steel material standard Hot galvanizing standard
China YB/T4001-1998 GB 700-88 GB/T13912-2002
USA ANSI/NAAMM(MBG531-88) ASTM (A36) ASTM(A123)
England BS4592-1987 BS4360 ( 43A) BS729
Australia AS1657-1992 AS3679 AS1650

Steel Grating More detailed information

No. Item Description
1 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
2 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.
3 Twisted Cross Bar Pitch 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc
4 Material Grade ASTM A36, A1011, A569, Q235, S275JR, SS304, SS400,
Mild steel & Low carbon steel, etc
5 Surface Treatment Black, self colour, hot dip galvanized, painted, spray coating
6 Grating Style Plain / Smooth, Serrated /teeth, I bar, serrated I bar

Stair Tread Power Plant Platform Driveway Steel Outdoor Drain Grating Hot Galvanized

Stair Tread Power Plant Platform Driveway Steel Outdoor Drain Grating Hot Galvanized

Stair Tread Power Plant Platform Driveway Steel Outdoor Drain Grating Hot Galvanized


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