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Qingdao Macro Reward International Trade Co., Ltd.

Grating, Steel Grating, Stainless Steel Grating manufacturer / supplier in China, offering ASTM Steel Bar Grating Heavy Duty Grating, AS/NZS 3m Steel Cattle Loading Ramp, ASTM 316/316L Stainless Steel Plate and so on.

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ASTM Steel Bar Grating Heavy Duty Grating

FOB Price: Get Latest Price
Min. Order: 20 Tons
Production Capacity: 100 Tons/Month
Transport Package: Pallet
Payment Terms: T/T
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Basic Info
  • Model NO.: SG-001
  • OEM: Supported
  • Specification: DIN EN
  • HS Code: 73089000
  • Hot DIP Galvanized Steel: All Sizes Available
  • Trademark: SJJ
  • Origin: Qingdao, Shandong, China
Product Description

Steel Bar Grating

Steel bar grating is manufactured from ASTM A-1011 mild carbon steel and is available in three distinct products: type "W" welded bar grating, type "DT" dovetail pressure locked grating, and type "SL" swage locked grating. All three products are available with bearing bar spacing ranging from 19/16" (1-3/16") to 7/16" on center and cross bars at either 4" or 2" on center. 

Each product has a standard plain surface or may be specified with optional serrated or Algrip surfaces. 
Finish options include bare steel, painted, hot dip galvanized, or specialty coatings. The steel bar grating load tables provide detailed specification information related to these products. 

Type "W" Welded Steel Grating

Our most economical steel grating products, type "W" welded steel gratings are manufactured by forge welding rectangular bearing bars and drawn cross bars. This welding process provides a positive fused connection providing years of service under the most demanding conditions. Type 19-W-4 steel grating is our most popular product and is recommended for nearly all industrial flooring applications. 

With nearly 80% open area, 19-W-4 allows for the easy passage of dirt, debris, snow, and liquids and is essentially self-cleaning. Type "W" gratings are available in close mesh, ADA conforming spacings 11-W-4 and 7-W-4 which are commonly used in public areas. When specifying type 11-W-4 for ADA applications, 3/16" thick bearing bars must be specified. 
ASTM Steel Bar Grating Heavy Duty Grating

Type "DT" Dovetail Pressure Locked Steel Grating 

Type "DT" steel gratings have deep rectangular cross bars and are manufactured by inserting pre-punched bearing bars and cross bars into an "egg-crate" configuration and deforming the cross bars under intense hydraulic pressure. 

The deep cross bars on type "DT" gratings make them popular for architectural applications such as sun shades and infill panels with the deeper cross bar serving as a distinct architectural accent. 
ASTM Steel Bar Grating Heavy Duty Grating

Type "SL" Swage Locked
Steel Grating

Type "SL" steel gratings are manufactured by inserting hollow tube cross bars into pre-punched holes in the bearing bars. The cross bars are then swaged forming a positive mechanical connection. The cross bars are recessed below the top surface of the bearing bars providing a uniform and attractive architectural appearance. 
Swage locking is a particularly efficient process for the production of close mesh gratings. Type 7-SL-4 with 3/16" thick bearing bars provides a net 1/4" clear opening between the bearing bars. This narrow opening is often preferred in public areas where concerns of drainage and the presence of high heeled shoes converge. 
ASTM Steel Bar Grating Heavy Duty Grating
 

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