hiseamarine

Marine Grating

Marine Grating

Hi-sea Marine Grating is widely used in all kinds of channels, such as machine furnace storehouse passageway of ship,deck walkway, warehouse platform, chimneys platform, bridge house platform, etc.Marine grating is specially tailored for shipbuilding industry.Different specifications can be available according to the needs of different users.

Hi-sea product design, production and acceptance strictly conform to CB/T608-1998 standard.At the same time, the selection of materials, processing technology of the marine steel grating, welding process, package edge flat steel and the specifications of the twisting lever, fixed plate welding and hot dip galvanized zinc layer thickness all also have strict requirements.

Base Materials of Marine Grating:

Q235A carbon steel, stainless steel (1cr18ni9ti stainless steel ordinary material) resin glass fiber reinforced plastic grille( FRP fiber reinforced composite plastics)

Materials of Marine Grating:

Plain type flat steel,I-bar type flat steel and FRP reinforced composite plastic

Surface treatment of marine grating:

General hot dip galvanized process is for carbon steel

Acid picking and polishing processing are for stainless steel.

The main particularity of selecting material,welding and galvanizing:

1.Raw material requirements: Good toughness of steel is one of the most critical requirements. In addition, high strength, good corrosion resistance and processing forming performance and surface quality are important. The requirements of the chemical composition Mn/C is above 2.5 for assuring quality and ensuring enough toughness.Flat steel type mainly has:255mm,323mm,403mm,505mm, etc.Wrapped edge flat steel specification shall be as wide as bearing flat steel and not less than 5 mm thickness of flat steel.The twisted square steel diameter of width direction must be 8mm.The material must be carbon structural steel Q235A or 1cr18ni9ti stainless steel.

2.Welding processing requirements:Each bearing flat steel and package edge flat steel are two-side package fillet welding,the welding seam is not less than 3 mm;Each bearing flat steel and the joint of twisting rod are full welding; Must remove splash, welding slag, burr and grinding after After finishing black pieces production of the semi-finished products. The four angle has no sharp edges and the whole is flat.

3.The galvanized layer requirements of marine grille: When the thickness of the bearing flat steel is not less than 5 mm, the average zinc layer weight after galvanizing is not less than 610 g / O;When the thickness of the bearing flat steel is less than 5 mm,the average zinc layer weight after galvanizing is not less than 460 g / O.The quality requirements comply with the latest GB/T13912-2008 standard.

Marine grating is in accordance with these standards as follows:Chinese CCS standard, Germany GL standard, French BV standard, British LR standard, Norway DNV standard and so on.Different national standard and the user's production needs are various.The standard strength structural steel set by the China classification society has four quality grades to distinguish general strength and high strength.

Specifications of Marine Grating: (for reference)

Form code

Name

Specifications of flat steel

Specifications of cross-bar

Flat steel pitch

Cross-bar pitch

Outline dimension

Application

AC

Carbon steel grating

32*3mm
40*3mm
50*5mm

6mm

40mm

100mm

500*1000mm
600*1000mm
700*1000mm
800*1000mm

machine furnace storehouse passageway,deck walkway,platform

AB

Stainless steel grating

BG

I-bar type steel grating

15*38mm
20*25mm

6mm

30mm
25mm

130mm

500*1000mm
600*1000mm
690*1000mm
780*1000mm

machine furnace storehouse passageway,deck walkway,platform

Form code

Name

Single grating size

Thickness

Width of up rib

Width of down rib

Outline dimension

Application

BF

FRP steel grating

38*38 mm

30 mm

6.5 mm

5 mm

500*1000mm
600*1000mm
700*1000mm
800*1000mm

machine furnace storehouse passageway,deck walkway,platform

38*38 mm

25 mm

6.4 mm

5 mm

40*40 mm

25 mm

6.5 mm

5mm

Note:Marine grating can be customized according to client' special requirements.For any more information,please feel free to contact us directly.

More Marine Gratings are as follows:

Marine Grating Marine Grating Marine Grating Marine Grating

Hot Dip Galvanized Marine Steel Grating

Marine Galvanized Steel Bar Grating

Marine FRP Fiberglass Grating

FRP GRP Fiberglass Ship Deck Grating

Marine Grating Marine Grating Marine Grating Marine Grating

Stainless Steel Marine Grating

I-bar Type Marine Steel Grating

Marine Platform Steel Grating

Marine Deck Steel Grating

Certificates:CCS,GL,BV,LR,DNV,etc.

Contact with us now

Our mail: manager@hiseamarine.com

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