Plain Type Metal Walkway Grating , 25 X 5 / 30 X 3 Galvanized Floor Grating
Plain Type 25x5 30x3 Hot-dipped Galvanized Steel Grating Door Mat
Description:
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.
1. Bearing Bar (Load Bar) Specifications (mm):
The specification of plain type and serrated type bearing bar is 25 x 3 to 100 x 8; The specification of I-section type is 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 4, etc.
2. Bearing Bar Pitch (center to center):
12.5, 25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, also be according to client's requirement and 30, 40, 60mm are recommended, America standard is available <1'' x 3/16'', 1 1/4'' x 3/16'', 1-1/2'' x 3/16'', 1'' x 1/4'', 1-1/4'' x 1/4'', 1 1/2'' x 1/4''(19-w-4) and so on. >
3. Material:
Mild Steel (Low Carbon Steel) or Stainless Steel
4. Surface Treatment:
Untreated, Painting or Hot DIP Galvanizing
5. Steel grating standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1985
E) Japan: JJS
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 |
| o | Item | Description |
| 1 | Bearing bar | 25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm |
| 2 | Bearing bar pitch | 12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40, 41, 60mm. US standard: 1"x3/16", 1 1/4"x3/16", 1 1/2"x3/16", 1"x 1/4", 1 1/4"x 1/4", 1 1/2"x 1/4" etc. |
| 3 | Cross bar pitch | 38,50,76,100,101.6mm |
| 4 | Material | Q235,A36,SS304 |
| 5 | Surface treatment | Black, hot dipped galvanized, paint |
| 6 | Thickness | Thickness≥3mm, depth ≥19mm |
| 7 | Standard | China: YB/T 4001.1-2007 |
| USA: ANSI/NAAMM(MBG531-88) | ||
| UK: BS4592-1987 | ||
| Australia: AS1657-1985 |
Common specifications:
| Materials Standards | ASTM A36, A1011, A569, Q235, S275JR, SS304, mild steel and low carbon steel, |
| Bearing bar | 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc US standards: 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'' |
| 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 US standards: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 |
| Twisted cross Bar pitch | 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' and 4'' |
| Surface treatment | black, self color, hot-dip galvanized, painted, spray coating |
| Grating style | plain /smooth, serrated /teeth, I bar, serrated I bar |
| Packing | 1. LCL: packing with plastic film then on the pallets 2. FCL: nude packing 3.other special packing according to customers' requirements |
| Payment terms | T/T ( 30% deposit , 70% balance against BL copy ) ,or L/C, PayPal, Western Union, MoneyGram, Credit Card ,OA |
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