The compound steel bar grating is a perfect combination of steel bar grating and checkered plate,
featuring beautiful appearance and high solidity. When it comes to
the manufacture of compound steel bar grating, JG323/40/100,
JG253/30/100 and JG323/40/100 steel bar grating are most often used
as the base plate. Then, weld 3mm thick checkered plate upon the
base plate. After proper polishing and surface treatment, a good
condition compound steel bar grating is produced. In consideration
of different working conditions, the dimensions and materials of
grating and checkered plate can be customized.
Terminology of Compound Steel Grating
• Loading flat steel: Majormaterial of the grating. Both sides upon
the steel beam.
• Crossing bar or twisted bar:Steel rod twisted in square section
pressed into the bearing flat bar. Forfixing of flat steel bar.
• Edging plate: Theflat steel bar with the same section of the
bearing or loading steel, welded tothe side of the bearing bar to
form a edge.
• Grating orientation: The flatbar arranged along the loading
direction for the direction of grating.
• LB: The abbreviation of theloading bar. This is the overall size
along the direction of the loading bar. (forexample: 995x1200LB),
and Other sizes distinguish.
Compound Steel Bar Grating Features:
Compound Steel Bar Grating has high strength, light structure,
corrosionresistance, durable and beautiful appearance.
Galvanized Compound Steel Grating Specification:
| No. | Item | Detailed Description |
| 1 | Bearing Bar | 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5,
50x5, 65x5, 75x6, 75x10---100x10mm etc; I bar: 25x5x3, 30x5x3,
32x5x3, 40x5x3 etc
US standard: 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' ' etc |
| 2 | Bearing Bar Pitch | 12.5, 15, 20, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25,
60, 80mm etc
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc |
| 3 | Twisted Cross Bar Pitch | 38.1, 40 50, 60, 76, 80, 100, 101.6, 120mm, 2' ' & 4' ' etc |
| 4 | Steel Grade | ASTM A36, A1011, A569, Q235, S235JR, S275JR, SS304, Mild steel &
Low carbon steel, etc |
| 5 | Surface Treatment | Black, self colour, hot dip galvanized, painted, spray coating |
| 6 | Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar |
| 7 | Grating Standard | China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88),
UK: BS4592-1987, Australia: AS1657-1985, Japan: JIS |
Galvanized Compound Steel Grating AFQ
Q: Are you a trading company or a manufacturer?
A: We are a manufacturer.
Q: How is your product quality guaranteed?
A: Our factory is ISO9001:2015 certified. All the products are100%
tested and inspected before delivery.
Q: How does your factory handle an order ?
A: After receiving an order, we will discuss all the details with
customers, and meanwhile we will issue customers a PI for final
confirmation.
Customers will be requested to do 30% deposit as required in PI
before mass production starts. When production is finished, our QC
will do final
testing and inspection, and will forward all the inspection
pictures and reports to customers by email. Customers will arrange
balance payment
accordingly. After we confirm receipt of payment, we will inform
customers' forwarder to pick up the goods.
Q: What's the lead time?
A: It varies according to different models and designs, but
normally 3-4wks.
Q: Do you accept OEM or ODM?
A: Yes, of course, We have professional R&D staff to process
your drawings and requirements.
Q: How can I get a free sample?
A: We don't provide free samples. We charge customers all the costs
and expenses of
sample making, but If customers place a bulk order after
sample approval, the collected sample making costs will be refunded
to customers while
we confirm the order.
Q: What is your payment term?
A: T/T and Paypal are both acceptable.30%deposit 70%balance payment
before shipment.
Galvanized Compound Steel Grating Picture:
