Welded Plain Type Serrated Bar Hot DIP Galvanizing Steel Structure Grating for Stair Tread
The products are widely used in areas such as oil and petrochemical industry, power and steel plant, port, shipyard, water and sewage treatment, municipal construction, ceiling, and etc.
Technical Data Table
Welding Mould List
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Packaging Method and Process
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How to produce steel grating? Please reference our production line as below.
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Company Profile
Ningbo Haoyuan steel grating Co. Ltd. is a professional enterprise in R & D., design, steel grating, SMC grating field. With innovative and pragmatic, scientific developing philosophy, following the criterion of ISO9001, it provides steel grating, stair tread, compound steel grating, fiberglass grating, drainage pit/trench cover, railing & stanchion, etc. It products are widely used in petroleum, chemical industry, environmental protection, power plants, pharmaceutical, printing and dyeing, brewing water supply and drainage, transportation and other industries.
With its ten years of professional management experience and production in press welding steel grating, Haoyuan steel grating Co., Ltd always strictly follows the brand management of "quality making value, innovation leading the future", to provide clients high quality assurance, drawing, mechanics calculation, data collation service. The products have been exported to different countries and regions, such as South Korea, Singapore, Thailand, Australia, France, Kenya, etc.
WEBSITE: cngrating.en.made-in-china.com
SALES DEPT. FOREIGN BUSINESS:
The products are widely used in areas such as oil and petrochemical industry, power and steel plant, port, shipyard, water and sewage treatment, municipal construction, ceiling, and etc.
Technical Data Table
Material | low carbon steel, stainless steel or following customer requirements |
Bearing bar specifications (mm) | 20 x 3 to 100 x 10; 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 4mm, or customerized |
Bearing bar pitch (center to center) | 12.5, 15, 25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, or customerized |
Cross bar pitch (center to center) | 38, 50, 76, 100, 101.6mm etc, or customerized |
Surface Treatment | Nature, hot dip galvanizing, paint spraying or following customer requirements |
Features | Anti-rust,durable, strong, safe, easy installation |
Packing | Wrapped with film and straps, wooden pallet packing |
Meeting steel grating standards | A) China: YB/T4001.1-2007 B) USA: ANSI/NAAMM(MBG531-88) C) UK: BS4592-1987 D) Australia: AS1657-1985 |
Welding Mould List
Haoyuan Welding Mould List | ||||
No. | Bearing Bar Pitch (mm) | Standard Panel Width (Bearing Bar Thickness 5mm) | Bearing Bar Number (PC) | Remark |
1 | 12.5 | 1005 | 81 | Pitch between the two sides are smaller than normal bearing bar pitch. |
2 | 15 | 1010 | 68 | |
3 | 20 | 1010 | 51 | |
4 | 22 | 995 | 46 | |
5 | 23.85 | 1007 | 43 | |
6 | 25 | 1005 | 41 | |
7 | 30 | 995 | 34 | |
8 | 30.16 | 1000 | 34 | |
9 | 30.3 | 1005 | 34 | |
10 | 32.5 | 1013 | 32 | |
11 | 34.3 | 1000 | 30 | |
12 | 35 | 1020 | 30 | |
13 | 35.3 | 1029 | 30 | |
14 | 40 | 1005 | 26 | |
15 | 41 | 1030 | 26 | |
16 | 41.4 | 999 | 25 | |
17 | 50 | 1005 | 21 | |
18 | 60 | 965 | 17 | |
19 | 62 | 997 | 17 |


Packaging Method and Process

How to produce steel grating? Please reference our production line as below.

Company Profile
Ningbo Haoyuan steel grating Co. Ltd. is a professional enterprise in R & D., design, steel grating, SMC grating field. With innovative and pragmatic, scientific developing philosophy, following the criterion of ISO9001, it provides steel grating, stair tread, compound steel grating, fiberglass grating, drainage pit/trench cover, railing & stanchion, etc. It products are widely used in petroleum, chemical industry, environmental protection, power plants, pharmaceutical, printing and dyeing, brewing water supply and drainage, transportation and other industries.
With its ten years of professional management experience and production in press welding steel grating, Haoyuan steel grating Co., Ltd always strictly follows the brand management of "quality making value, innovation leading the future", to provide clients high quality assurance, drawing, mechanics calculation, data collation service. The products have been exported to different countries and regions, such as South Korea, Singapore, Thailand, Australia, France, Kenya, etc.
WEBSITE: cngrating.en.made-in-china.com
SALES DEPT. FOREIGN BUSINESS: