Round Holes Wide Steel Floor Grating Carbon Steel Metal Gratings
About Bar Gratings
Steel bar grating is an open grid assembly of steel bars in which
the bearing bars, running in one direction, are spaced by rigid
attachment to cross rods running perpendicular to the bearing bars.
Steel bar gratings offer advantages over other construction
products including wood, solid steel plate, fiberglass, concrete
and aluminum on the cost, weight, strength and openness.
Carbon steel and stainless steel bar gratings are available.
Glass-fiber gratings are at your service, too.
Panel size: 1 m × 5.8 m nominal standard one (other size is available on
Material: Carbon steel and Stainless steel.
Finish: Mill finished, Hot dip galvanized, Spraying Painted, Powder
Coated, Bitumen Painted.
Surface: Smooth bearing bares or serrated bearing bars.
Our products are manufactures to the following quality standards.
Steel Grating Standard:
U.S.: ANSI/NAAMM MBG531,
Raw Material Standard:
U.S.: ASTM A36,
Hot Dip Galvanizing Standard:
U.S.: ASTM A123,
Bearing Bar Sizes
The thickness of the bearing bars available: 3 mm, 5 mm and 6 mm
The height of the bearing bars available: 20 mm, 25 mm, 30 mm, 32
mm, 40 mm, 50 mm, 55 mm, 65 mm and 75 mm
Cross Rod Size:
It can be in square twisted cross-section rods for press welding
process or rectangle cross-section.
Pitch of the Bearing Bar and Cross Rod
30 mm, 40 mm and 60 mm pitches for the bearing bars
50 mm and 100 mm for the twisted cross rod pitch
The types of the stair treads available:
Welded fixing, banded ends with no nosing, with or without holed
Welded fixing, banded ends with floor plate nosing, with or without
holed end plates;
Welded fixing, banded ends with abrasive nosing, with or without
holed end plates;
Welded fixing, banded ends with perforated plate nosing, with or
without holed end plates.
Other Relative Products:
Drainage gratings, handrails, animal flooring, platforms and clips
accessories for erection.
We supply customer fabrications to cut the bar gratings into
difference sizes and shapes. The bearing bar panels can be banded
according to your need.
Walkways; Flooring; Ramps ; Bridge Flooring and Sidewalks; Concrete
Reinforcement; Fork Lift Traffic; Machine and Motor Bases;
Machinery Safety Guards; Machinery Support Trenches; Mezzanine
Floors; Partitions; Platforms; Racks and Shelving; Window Guards
1. Aluminum Bar Grating Bearing Bar (Load Bar) Specifications (mm):
The specification of plain type and serrated type bearing bar is 20
x 3 to 100 x 9 or according to customer’s request.
2. Aluminum Bar Grating Bearing Bar Pitch (center to center): 12.5
to 100 mm etc, also be according to client's requirement and 30,
40, 60mm are recommended, America standard is available.
3. Aluminum Bar Grating Cross Bar Pitch (center to center):
from18.5 to 101.6mm etc, also be according to client's requirement
and 50, 100mm are recommended, America standard is available.
4. Aluminum Bar Grating Material: Stainless steel or mild steel.
5. Aluminum Bar Grating Surface Treatment: Untreated, Painting or
6. Aluminum Bar Grating standards:
A. China: YB/T4001.1-2007
B. U.S.A.: ANSI/NAAMM (MBG531-88)
C. U.K.: BS4592-1987
D. Australia: AS1657-1985
E. Japan: JJS
7. When purchasing order, you need offer specific data upwards.
Company's quality management system is established in accordance
with ISO9001 standards, and being strictly operated in accordance
with this quality system effectively. This is enough to make our
customers to rely on our products which are completely meet with
the specified requirements.
This System is throughout the procurement from raw materials to
the after-sales service, including market research, product
development, purchase, processing technology, manufacturing,
inspection and testing, logistics, after-sales service and quality
assessment in every aspect.
Furthermore, the effectiveness of periodic review to the company's
quality management system enables the ongoing improvements to
refine it. This is always a top priority.
In addition to this modern quality management system, our advanced
precision measuring instruments, skilled inspectors, frequent staff
training, seminars and exchange of information, timely in-house
feedback are the solid foundation to provide customers with assured
| || || ||Table 2|| || ||um|
|w = Opening (um)||Opening Tolerance (um)||d = Wire Diameter (um)|
|Main||Supplement||Max. Individual Opening||Average Deviation||Middle Deviation + Z||Preferred Diameter d||Allowed Range|
|+ X||± Y|
|( 1 )||( 2 )||( 3 )||( 4 )||( 5 )||( 6 )||( 7 )||( 8 )||( 9 )|
| ||900|| ||131||31||81||500||580||430|
| || ||850||127||29||78||500||580||430|
| ||800|| ||122||28||75||450||520||380|
| ||630|| ||104||22||63||400||460||340|
| || ||600||101||21||61||400||460||340|
| ||560|| ||96||20||58||355||410||300|
| ||450|| ||84||16||50||280||320||240|
| || ||425||81||16||48||280||320||240|
| ||400|| ||78||15||47||250||290||210|
| ||315|| ||67||12||40||200||230||170|
| || ||300||65||12||38||200||230||170|
| ||280|| ||62||11||37||180||210||150|
| ||224|| ||54||9||32||160||190||130|
| || ||212||52||8.7||30||140||170||120|
| ||200|| ||50||8.3||29||140||170||120|
| ||160|| ||44||6.9||25||112||130||95|
| || ||150||43||6.6||25||100||115||85|
| ||140|| ||41||6.3||24||100||115||85|
| ||112|| ||36||5.4||21||80||92||68|
| || ||106||35||5.2||20||71||82||60|
| ||100|| ||34||5||19||71||82||60|
| ||80|| ||30||4.3||17||56||64||48|
| || ||75||29||4.1||17||50||58||43|
| ||71|| ||28||4||16||50||58||43|
| ||56|| ||25||3.5||14||40||46||34|
| || ||53||24||3.4||14||36||41||31|
| ||50|| ||23||3.3||13||36||41||31|
| ||40|| ||21||3||12||32||37||27|
| || ||38||20||2.9||11||30||35||24|
|32|| || ||19||2.7||11||28||33||23|
|25|| || ||16||2.5||9||25||29||21|
|20|| || ||14||2.3||8||20||28||17|