High Quality Hot Dipped Galvanized Press Welded Steel Bar Grating for Walkways/Flooring

• After-sales Service: Any Time
• Warranty: Any Time
• Certification: ISO
• Application: Steel Structure Walkway, Drain Cover
• Shape: I Shape, Tooth Shape, Flat Shape
• Manufacturing Method: Machine Welding, Hand Welding
• Model NO.: 19W4
• Material: Mild steel (low carbon steel), Stainless Steel
• Another Name: Metal grating, steel grid, steel grille
• Other Name: galvanized and serrated steel bar grating
• Byname: light duty or heavy duty steel grating
• Alias: trench grating, drain covers, floor gratings
• Internationally Accepted Specification: 38W4, 38W2, 25W4, 25W2, 19W4, 19W2, 15W4, 15W2
• Availability of Samples: Samples can be fabricated at no charge.
• Material Type (Materials): Mild steel/low carbon steel, galvanized steel, etc
• Overall Size of Grating Panels: 1200mm X 6000mm (Max. for machine welding)
• Maximum Width: 1200mm (for machine welding, not for hand welding
• Maximum Length: 6000mm
• Grating Quality Standards: ANS/NAAMM(MBG531-88), BS4592-1987, or AS1657-1992
• Grating Finishes: Hot dip galvanized, painted black or red, etc.
• Grating Main Market: USA, Canada, UK, South America, UAE, New Zealand
• Grating Workability: Easy to weld, cut, form and machine
• Bearing Bar Finish: Non-serrated, plain, flat or smooth/Serrated
• Transport Package: Strongly Packed Using Steel Tubes and Steel Belts
• Specification: G325/40/100, G10010/40/100, and G325/30/50PWI, etc
• Trademark: TEC-SIEVE
• Origin: Anping County, Hebei Province, China
• HS Code: 7308900000
• Production Capacity: 5000 Pieces/Month

Product Description

Product Definition

What is Steel Bar Grating?

Steel bar grating is also known as steel grating. Steel grating is made up of parallel bars that are connected together with perpendicular bars. The bars are most commonly connected through machine pressure welding or manual welding, as the case may be. However, there are other ways of joining the bars together. Alternatives include riveting, close meshing (swaging), and press-locking. The most economical method of joining is determined by the materials used and the bars' thickness.  
Steel bar grating is usually made out of carbon steel orstainless steel. It has a very high ratio of strength-to-weight and a lot of open space, making it a widely used option for industrial flooring. However, it is also used for things such as fire escapes, street drains, and bridges.

Product Features

What are the Features of Steel Bar Grating from Tec-Sieve?
1. A wide range of material types are available, including carbon steel (cold rolled steel), galvanized steel, and stainless steel.
2. 2Nos construct types are available, namely press welded type and press locked type.
 

Note: At Tec-Sieve, in addition to the automatic resistance welding process, the manual welding process is also available, and sometimes the manual welding process will become necessary depending on the individualized specifications of your steel bar grating panels.
3. A wide range of finishes are available, including mill finish (untreated surface in black finish), black, red or any other color primer, and hot dip galvanized finish.
4. Two types of top surface are available, namely smooth top surface and serrated top surface.

Applicable Quality Standards

Steel Bar Grating Standards		Material (Steel) Standards		Hot Dip Galvanizing Standards
China	YB/T4001.1-2019	China	GB700-88	China	GB/T13912-2002
USA	ANS/NAAMM(MBG531-88)	USA	ASTM(A36)	USA	ASTM(A123)
UK	BS4592-1987	UK	BS4360(43A)	UK	BS729
Australia	AS1657-1992	Australia	AS3697	Australia	AS1650

Technical Parameters

At Tec-Sieve, both press welded steel bar grating panels and press locked steel bar grating panels are manufactured. Our press welded steel bar grating panels are ideal for most industrial applications, including without limitation the oil and gas industry, the petro-chemical industry, the mining industry and in power stations, so now we focus on our press welded steel bar grating panels in the following.   
1. Types of Press Welded Steel Bar Grating Panels by the Style of Bearing Bars
Note: At Tec-Sieve, in addition to cold twisted square cross bars, round cross bars or ribbed cross bars are also available upon request.
2. Dimensions of Bearing Bars and Cross Bars

Nominal Size and Allowable Tolerance of Bearing Bars			Size of Cross Rods
Nominal Size (mm)		Allowable Tolerance (mm) (Refer to YB/T4001.1-2007)	Section Area (mm^2)
Thickness	3-10	+0.2/-0.4	20
Depth	10-50	+0.3/-0.9	32
	>50-75	+0.4/-1.2	40
	>75-100	+0.7/-1.7

3. Specification Table of Type F Press Welded Steel Bar Grating Panels

Specification Code (Simplified Version)	Size of Bearing Bars		Bearing Bar Spacing (mm)	Cross Bar Spacing (mm)	Nominal Weight (kg/m^2)
	Depth (mm)	Thickness (mm)
G655/15/100	65	5	15	100	195.90
G655/15/50	65	5	15	50	199.00
G605/15/100	60	5	15	100	181.10
G605/15/50	60	5	15	50	184.20
G555/15/100	55	5	15	100	166.30
G555/15/50	55	5	15	50	169.30
G505/15/100	50	5	15	100	151.40
G505/15/50	50	5	15	50	154.50
G455/15/100	45	5	15	100	136.60
G455/15/50	45	5	15	50	139.60
G405/15/100	40	5	15	100	121.70
G405/15/50	40	5	15	50	124.80
G403/15/100	40	3	15	100	75.60
G403/15/50	40	3	15	50	78.70
G355/15/100	35	5	15	100	106.90
G355/15/50	35	5	15	50	110.00
G35315/100	35	3	15	100	66.60
G353/15/50	35	3	15	50	69.60
G325/15/100	32	5	15	100	98.00
G325/15/50	32	5	15	50	101.00
G323/15/100	32	3	15	100	61.10
G323/15/50	32	3	15	50	64.20
G255/15/100	25	5	15	100	77.20
G255/15/50	25	5	15	50	80.30
G253/15/100	25	3	15	100	48.40
G253/15/50	25	3	15	50	51.50
G205/15/100	20	5	15	100	62.40
G205/15/50	20	5	15	50	65.50
G203/15/100	20	3	15	100	39.30
G203/15/50	20	3	15	50	42.40
G605/20/100	60	5	20	100	135.30
G605/20/50	60	5	20	50	138.30
G555/20/100	55	5	20	100	124.30
G555/20/50	55	5	20	50	127.30
G505/20/100	50	5	20	100	113.30
G505/20/50	50	5	20	50	116.30
G503/20/100	50	3	20	100	70.80
G503/20/50	50	3	20	50	73.80
G455/20/100	45	5	20	100	102.20
G455/20/50	45	5	20	50	105.20
G405/20/100	40	5	20	100	91.20
G405/20/50	40	5	20	50	94.20
G403/20/100	40	3	20	100	57.30
G403/20/50	40	3	20	50	60.30
G355/20/100	35	5	20	100	80.20
G355/20/50	35	5	20	50	83.20
G353/20/100	35	3	20	100	50.50
G353/20/50	35	3	20	50	53.50
G325/20/100	32	5	20	100	73.60
G325/20/50	32	5	20	50	76.60
G323/20/100	32	3	20	100	46.40
G323/20/50	32	3	20	50	49.40
G255/20/100	25	5	20	100	58.10
G255/20/50	25	5	20	50	61.10
G253/20/100	25	3	20	100	36.90
G253/20/50	25	3	20	50	39.90
G205/20/100	20	5	20	100	47.10
G205/20/50	20	5	20	50	50.10
G203/20/100	25	3	20	100	30.10
G203/20/50	25	3	20	50	33.10
G655/30/100	65	5	30	100	100.40
G655/30/50	65	5	30	50	103.40
G605/30/100	60	5	30	100	92.90
G605/30/50	60	5	30	50	95.90
G555/30/100	55	5	30	100	85.40
G555/30/50	55	5	30	50	88.40
G505/30/100	50	5	30	100	77.90
G505/30/50	50	5	30	50	80.90
G503/30/100	50	3	30	100	49.60
G503/30/50	50	3	30	50	52.60
G455/30/100	45	5	30	100	70.40
G455/30/50	45	5	30	50	73.40
G405/30/100	40	5	30	100	62.90
G405/30/50	40	5	30	50	65.60
G403/30/100	40	3	30	100	40.30
G403/30/50	40	3	30	50	43.30
G355/30/100	35	5	30	100	55.40
G355/30/50	35	5	30	50	58.40
G353/30/100	35	3	30	100	35.60
G353/30/50	35	3	30	50	38.60
G325/30/100	32	5	30	100	50.90
G325/30/50	32	5	30	50	53.90
G323/30/100	32	3	30	100	32.80
G323/30/50	32	3	30	50	35.80
G255/30/100	25	5	30	100	40.40
G255/30/50	25	5	30	50	43.40
G253/30/100	25	3	30	100	26.30
G253/30/50	25	3	30	50	29.30
G205/30/100	20	5	30	100	33.00
G205/30/50	20	5	30	50	36.00
G203/30/100	20	3	30	100	21.60
G203/30/50	20	3	30	50	24.60
G655/40/100	65	5	40	100	78.70
G655/40/50	65	5	40	50	81.70
G605/40/100	60	5	40	100	72.90
G605/40/50	60	5	40	50	75.90
G555/40/100	55	5	40	100	67.10
G555/40/50	55	5	40	50	70.10
G505/40/100	50	5	40	100	61.20
G505/40/50	50	5	40	50	64.20
G503/40/100	50	3	40	100	39.60
G503/40/50	50	3	40	50	42.60
G455/40/100	45	5	40	100	55.40
G455/40/50	45	5	40	50	58.40
G405/40/100	40	5	40	100	49.60
G405/40/50	40	5	40	50	52.60
G403/40/100	40	3	40	100	32.30
G403/40/50	40	3	40	50	35.30
G355/40/100	35	5	40	100	43.80
G355/40/50	35	5	40	50	46.80
G353/40/100	35	3	40	100	28.60
G353/40/50	35	3	40	50	31.60
G325/40/100	32	5	40	100	40.30
G325/40/50	32	5	40	50	43.30
G323/40/100	32	3	40	100	26.40
G323/40/50	32	3	40	50	29.40
G255/40/100	25	5	40	100	32.10
G255/40/50	25	5	40	50	35.10
G253/40/100	25	3	40	100	21.30
G253/40/50	25	3	40	50	24.30
G205/40/100	20	5	40	100	26.30
G205/40/50	20	5	40	50	29.30
G203/40/100	20	3	40	100	17.60
G203/40/50	20	3	40	50	20.60
G655/60/50	65	5	60	50	49.00
G555/60/50	55	5	60	50	42.40
G505/60/50	50	5	60	50	39.00
G455/60/50	45	5	60	50	35.70
G405/60/50	40	5	60	50	32.30
G403/60/50	40	3	60	50	21.70
G325/60/50	32	5	60	50	27.00
G323/60/50	32	3	60	50	18.50
G255/60/50	25	5	60	50	22.30
G253/60/50	25	3	60	50	15.70
G205/60/50	20	5	60	50	19.00

Note: Bearing bar spacing means bearing bar centers or pitch; cross bar spacing means cross bar centers or pitch.
4. Specification Table of Heavy Duty Type F Welded Steel Bar Grating Panels 

Specification Code (Simplified Version)	Size of Bearing Bars		Bearing Bar Spacing (mm)	Cross Bar Spacing (mm)	Nominal Weight (kg/m^2)
	Depth (mm)	Thickness (mm)
G10010/40/100	100	10	40	100	234.90
G1008/40/100	100	8	40	100	191.70
G908/40/100	90	8	40	100	173.10
G808/40/100	80	8	40	100	154.40
G758/40/100	75	8	40	100	145.10
G756/30/100	75	6	30	100	140.10
G756/40/100	75	6	40	100	110.10
G706/30/100	70	6	30	100	131.10
G706/40/100	70	6	40	100	103.20

Note: Bearing bar spacing means bearing bar centers or pitch; cross bar spacing means cross bar centers or pitch.
5 Specification Table of Type I Press Welded Steel Bar Grating Panel

Specification Code (Simplified Version)	Size of Bearing I Bars (mm)				I Bar Spacing (mm)	Cross Bar Spacing (mm)	Nominal Weight (kg/m^2)
	I Bar Height (Width)	Flange Thickness	Flank Thickness	Flange Width
G757/30/50PWI	75	7	4	12	30	50	126.10
G757/30/100PWI	75	7	4	12	30	100	120.70
G657/30/50PWI	65	7	4	10	30	50	110.10
G657/30/100PWI	65	7	4	10	30	100	104.80
G607/30/50PWI	60	7	4	10	30	50	99.10
G607/30/100PWI	60	7	4	10	30	100	96.10
G557/30/50PWI	55	7	4	8.5	30	50	90.30
G557/30/100PWI	55	7	4	8.5	30	100	87.30
G507/30/50PWI	50	7	4	8	30	50	83.20
G507/30/100PWI	50	7	4	8	30	100	80.20
G505/30/50PWI	50	5	3	8.5	30	50	62.80
G505/30/100PWI	50	5	3	8.5	30	100	59.80
G445/30/50PWI	44	5	3	8	30	50	56.50
G445/30/100PWI	44	5	3	8	30	100	53.50
G385/30/50PWI	38	5	3	7	30	50	49.90
G385/30/100PWI	38	5	3	7	30	100	46.90
G325/30/50PWI	32	5	3	6	30	50	43.30
G325/30/100PWI	32	5	3	6	30	100	40.30
G255/30/50PWI	25	5	3	4.5	30	50	35.10
G255/30/100PWI	25	5	3	4.5	30	100	32.10
G757/40/50PWI	75	7	4	12	40	50	101.00
G757/40/100PWI	75	7	4	12	40	100	95.60
G657/40/50PWI	65	7	4	10	40	50	88.50
G657/40/100PWI	65	7	4	10	40	100	83.20
G607/40/50PWI	60	7	4	10	40	50	78.90
G607/40/100PWI	60	7	4	10	40	100	75.90
G557/40/50PWI	55	7	4	8.5	40	50	71.90
G557/40/100PWI	55	7	4	8.5	40	100	68.90
G507/40/50PWI	50	7	4	8	40	50	66.40
G507/40/100PWI	50	7	4	8	40	100	63.40
G505/40/50PWI	50	5	3	8.5	40	50	50.40
G505/40/100PWI	50	5	3	8.5	40	100	47.40
G445/40/50PWI	44	5	3	8	40	50	45.50
G445/40/100PWI	44	5	3	8	40	100	42.50
G385/40/50PWI	38	5	3	7	40	50	40.30
G385/40/100PWI	38	5	3	7	40	100	37.30
G325/40/50PWI	32	5	3	6	40	50	35.10
G325/40/100PWI	32	5	3	6	40	100	32.10
G255/40/50PWI	25	5	3	4.5	40	50	28.70
G255/40/100PWI	25	5	3	4.5	40	100	25.80

Note: I bar spacing means bearing bar centers or pitch; cross bar spacing means cross bar centers or pitch.

Primary Competitive Edges

In terms of press welded steel bar grating panels, does Tec-Sieve have any primary competitive edges?
If yes, please list them one by one!
Certainly, Tec-Sieve has its own primary competitive edges in the steel bar grating industry.
Specifically speaking, in terms of making press welded steel bar grating panels to the exact specifications of every customer, we have gained four primary competitive edges as below:
1. Our factory is well equipped to produce steel bar grating panels under high pressure by using the automatic resistance welding process on the full-automatic forge welding machines. The continuous welding of each individual intersection point of the bearing bar and cross bar produces an extremely stable, strong, and hard-wearing structure. 
Particularly, our full-automatic forge welding machines can produce grating panels with cross bar lengths of up to 1200 mm, while many other more conventional machines are restricted to 1000 mm. Utilizing our larger panel widths can give savings of up to 20 % in the number of fixings required which obviously translates into bigger savings in installation time and labor costs.
2. Our factory boasts a well experienced and professional toolmaking team, and we are able to design and develop the high quality set of precision welding dies to exacting tolerances and specifications you requested at a very competitive price by using sate-of-the-art tool making techniques.
Meantime we have a large number of skilled welding workers, and they are very good at the hand welding operation. So when hand welding is needed, such as the fabrication of oversized grating panels or edge banding, all the jobs can be done perfectly.
3. In addition to the full-automatic forge welding machines, our factory is also equipped with many other fabricating machines, such as sheet-metal shearing machines, leveling machines, laser cutting machines. Therefore our factory is well empowered to carry out subsequent fabrication processing of finished grating panels, including cutting to size, leveling, notching, and forming, etc.
4. A wide range of surface treatments for press welded steel bar grating panels are available from our factory, and these surface finishing processes include hot-dip galvanization, paint spraying, and PVC powder coating, all of which provide very good corrosion resistance for durability.

Fields of Product Application

Which fields are welded steel bar grating panels applied in?

•  Platform services in the industrial and energy construction.
•  Walkway of bridges and transitions.
•  Shelf of factory and supermarket.
•  Ceiling of factory, house, and hall.
•  Gully and well cover of street and huge yard.
•  Fence of balcony, factory and playground.
•  Floor of many places.

How to Order

Detailed Photos