Way of Installation: | Bolted Fixing |
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Nosing: | Checkered Plate Nosing |
Type of Tread: | Jt6 |
Material: | Mild Steel, Low-Carbon Steel, Stainless |
Type: | Straight Stairs |
Usage: | Outdoor |
Samples: |
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Customization: |
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Jiulong Hot dipped Galvanized Grating Stair Tread with Slip Resistant Nosing
Material:
There are three equivalent grades of steel available.
Standard | Steel Specification |
Chemical Composition | ||||||||
C ≤ | Mn ≤ | Si ≤ | Allow residual content P ≤ |
Allow residual content S ≤ |
N ≤ | CU≤ | Cr | Ni | ||
GB/T700-2006 | Q235B | 0.20% | 1.40% | 0.35% | 0.045% | 0.045% | ||||
ASTM | A36 | 0.25% | 0.8%-1.2% | 0.40% | 0.04% | 0.05% | 0.02% | |||
EN 10025-2 | S235JR | 0.20% | 0.14% | 0.04% | 0.04% | 0.012% | 0.55% |
The most widely Used Grating Stair tread:
Load Bearing Bar Pitch | Recommended Width | ||||||
30 | 125 | 155 | 185 | 215 | 245 | 275 | 305 |
40 | 125 | 165 | * | 205 | 245 | 285 | 325 |
oad
Bearing BaLoad Bearing Bar Pitchr Pitch
No | Item | Description |
1 | Bearing bar | 25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm |
2 | Bear 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 galvanising, paint |
6 | Standard | China: YB/T 4001.1-2007 |
USA: ANSI/NAAMM(MBG531-88) | ||
UK: BS4592-1987 | ||
Australia: AS1657 |
It has convenient traffic and superior location with only 30-minutes drive to Ningbo Lishe International Airport and only 25-minute drive to Ningbo Port---the famous international sea port with the advantage of non-silting, deep-water and ice-free all year round.
Founded in 1993, covering an area of 25000 square meters and with workshop area of 18000 square meters, NJMM has advanced equipments, full-fledged technology as well as rich manufacture and management experience in press-welded steel grating area over 10 years. NJMM is among the few leading manufacturers who have the entire production process from bearing bar to galvanized steel grating.
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