Serrated Galvanized Steel Bar Grating
2024-03-10 13:08:25
Model NO.: CT-SSBG04
Cross Bar Pitch: 50mm,76mm,100mm
Surface Treatment: Hot Dipped Galvanized
Type: Plain Type and Serrated and I Shape Type
Trademark: CT
Specification: according to customers′ requirement
Origin: Anping County, Hengshui City
HS Code: 731450000
Steel bar grating1. The shape of bearing bar: Plain type (may be omitted in the symbol of steel grating), Serrated type and I-Shape type
2. Bearing bar pitches can be 12.5, 15, 20, 30, 30.16, 32.5, 34.3, 40, 60mm, of which 30mm & 40mmare recommended.
3. Cross bar pitches can be 38, 50, 60,100mm, of which 50mm & 100mm are recommended.
4. Surface treatment: Hot-dip galvanizing, paint or other anti-corrosive coatings are available, of which hot-dip galvanizing is generally recommended.
5. Material: Q235 in line with GB/T700 steel
6. Tolerance
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.
7. Standard:
| standard | Steel grating standard | Steel standard | Galvanizing standard |
| China standard | YB/T 4001.1-2007 | GB700-88 | GB/T13912-2002 |
| USAÂ standard | ANSI/NAAMM(MBG531) | ASTM(A36) | ASTM(A123) |
| U.K. standard | BS4592 | BS4360(43A) | BS729 |
| Australia standard | AS1657 | AS3679 | AS1650 |
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