Basic Info.
Product Description
Description:Steel Bar Gratings are manufactured with the world's first-class computer-controlled pressure resistance welding machine by electro-forging the twisted square-steel into flat steel.Steel Bar Gratings are classified into three styles,namely plain style,serrated and I style as per the upper edges of bearing bars .More than 200 varieties are available based on specifications and spacing of bearing bars ,and that of cross roda.Different protective treatment can be made on the surface as environment varies.
Application
1.Widely used in shipbuilding, harbor, oceanographic engineering, building, paper mills, cement plant, medicine, spinning and weaving.
2.Is applied in food stuff factory, transportation, municipal administration, parking lot , etc.
3. Also used by various plants such as electric power, petroleum,chemical industry.
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.
Introduction:
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
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
Grating Standardizations:
| Countries | National Standards for Grating | Materials | Galvanizing Standards |
| China | YB/T 4001.1-2007 | GB 700-88 | GB/T13912-2002 |
| America | ANSI/NAAMM(MBG531-00) | ASTM(A36) | ASTM(A123) |
| Britain | BS4592-1995 | BS4360(43A ) | BS729 |
| Australia | AS1657-1992 | AS3679 | AS1650 |
Specification:
| item | value |
| Warranty | 2 years |
| Material Standard | Mild steel ASTM A36, Q235, S275JR, Stainless steel 304/316, 6063Aluminum Alloy, etc |
| Bearing Bar (Width x Thickness) | 25x3, 25x4, 25x5, 30x3, 30x4, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10…..100 x10mm 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 | 15, 20, 25, 30, 40, 60, 80mm etc. US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc. |
| Twisted Cross Bar Pitch | 50, 60, 80, 100, 120mm, 2'' & 4'' etc |
| Surface Treatment | Untreated(black), Hot-dipped galvanized, Powder coated, Electroplate, Painting or as per customers' requirement. |
| Grating Style | Plain / Smooth, Serrated / Teeth, I bar, Serrated I bar |
| Payment Term | T/T, L/C, Alibaba Trade Assurance |
| Place of Origin | China |
| Application | Industry,Park,Municipal Administration, etc |
| Product Name | Galvanized Steel Grating |
Jiangsu zhongtong weiye special steel co., ltd. is a professional steel company engaged in the research, development, production, sale and service. It had five branch companies .Our annual sales nearly one billion, about 280,000 tons steel, It is located in Wuxi with the convenient transportation access. In line with the development concept of quality conquer the world, service achievement future. We dedicate to strict quality control and thoughtful customer service, and our experienced staff members are always available to discuss your requirements and ensure every customer satisfaction. Our main products include PPGI ,galvanized steel , steel plate , round bar, steel pipe ,Stainless steel product ,angle bar, steel pile ,H beam ,I beam, angle, Channel flat steel etc . With double guarantee of service and management system. Main market distributes in North America, South America, Africa, Southeast Asia as well as Oceania. We responds positively to the national one belt and one road strategy, and arranged overseas layout in advance to service the countries and customers alongside the route better and higher efficiency. Up to now, we have established long-term and win-win partnership with many large steel manufacturers, such as Baosteel, Tisco, SG Steel, Angang and Maanshan Iron and Steel. We always foucesed on the intergration of reasources , in line with the concept of win win cooperation . Sincerely wish to build a long and regular business with you forever.
We are based in Jiangsu Province, China, start from 2020,sell to Oceania(10.00%),South Asia(10.00%),Southern Europe(10.00%),Eastern Europe(10.00%),Western Europe(10.00%),North America(10.00%),Domestic Market(5.00%),Africa(5.00%),Southeast Asia(5.00%),Northern Europe(5.00%),Central America(5.00%),South America(5.00%),Eastern Asia(5.00%),Mid East(5.00%). There are total about 301-500 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Stainless Steel sheet coil,stainless steel pipe,PPGI,Roofing Sheet,gi coil, silicon steel, copolymer coated steel/aluminum/copper and other alloy metals.
4. why should you buy from us not from other suppliers?
Jiangsu zhongtong weiye special steel Co., Ltd is a professional steel company engaged in the research, development, production, sale and service. It had five branch companies .we have three warehouse.
5. what services can we provide?
Accepted Payment Type: T/T,L/C,D/P D/A,PayPal;