HVG MARINE OUTFITTING EQUIPMENT 0009

HVG MARINE OUTFITTING EQUIPMENT 0009: 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:25×5mm,32×3mm,40×3mm,50×5mm, 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 Φ 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 / ㎡;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 / ㎡.The quality requirements comply with the latest GB/T13912-2008 standard.

Technical specification:

Technical specification

Form code	Name	Specifications of flat steel	Specifications of cross-bar	Flat steel pitch	Cross-bar pitch	Outline dimension	Application
AC	Carbon steel grating	323mm 403mm 50*5mm	6mm	40mm	100mm	5001000mm 6001000mm 7001000mm 8001000mm	machine furnace storehouse passageway,deck walkway,platform
AB	Stainless steel grating	323mm 403mm 50*5mm	6mm	40mm	100mm	5001000mm 6001000mm 7001000mm 8001000mm	machine furnace storehouse passageway,deck walkway,platform
BG	I-bar type steel grating	1538mm 2025mm	6mm	30mm 25mm	130mm	5001000mm 6001000mm 6901000mm 7801000mm	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	5001000mm 6001000mm 7001000mm 8001000mm	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