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P10 40mm Heavy Duty Galvanized Steel Grating

Introduction of heavy type steel grating:

Heavy steel plate is specially designed for heavy load occasions production of steel plate products. Heavy steel plate is formed by pressure welding process of twisted square steel and large bearing flat steel through high temperature and high pressure. Due to the particularity of heavy load steel plate, generally speaking, heavy steel plate is made of thicker (6mm, 8mm, 10mm) and wider flat steel as the bearing flat steel. The flat steel spacing of heavy load steel lattice plate is generally 30mm, and the bar spacing can be selected as 50mm and 100mm. It can be made by pressure welding or pressure lock. It is suitable for airport, highway, industrial platform, port terminal and other special occasions.


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Description

Heavy duty steel grating supplies far greater strength-to-weight ratio than other flooring materials to bear the heavy load such as forklift or truck traffic.
Because these gratings are typically in more severe service, it is highly recommended that all open ends be trim or load banded. The welded band bar helps distribute these loads and minimizes potential panel distortion.

The Characteristics Of Heavy Type Steel Plate Grating

The biggest characteristic of heavy steel plate is that it has a large load capacity and the strongest impact resistance. It is recommended to use toothed steel lattice plate, which can provide better friction. It is the preferred product for places with large loads and many vehicles. Pressing lock is the best manufacturing method, which can effectively prevent the tilt instability of bearing flat steel. Avoid load flat steel deformation.

Heavy Type Steel Lattice Plate Grating Requirements

The production technology of heavy steel plate has special requirements. Generally, high quality carbon structural steel or stainless steel is required to have high strength and good corrosion resistance. Its chemical composition and mechanical properties shall comply with the requirements of Q235A of GB70088 or 0Crl8Ni9 of GBl22092, respectively. Each bearing flat steel and rimmed flat steel are double breaded fillet welding and the weld is not less than 3MM; The joint of each bearing flat steel and twist rod is fully welded; After the production of semi-finished black parts, the spatter, welding slag and burr must be removed, the corners without sharp edges must be polished, and the whole plate must be flat. The heavy steel plate is also very strict for galvanizing. When the thickness of bearing flat steel is not less than 5MM, the average weight of zinc layer after galvanizing shall not be less than 610g/㎡; When the thickness of the bearing flat steel is less than 5mm, the average weight of zinc layer after galvanizing shall not be less than 460g/㎡. The quality and requirements after galvanizing should conform to the latest "hot dip Galvanizing" GB/T13912-2008 standard.

Heavy Type Steel Grating

Type

bearing
bar
Width

bearing
bar
thickness

Cross
barsize

Theory
weight

Loadand
deflection

Clear span

200

400

600

800

1000

1200

1400

1600

1800

2000

2200

2400

2600

2800

3000

G1508/40/100

150

8

8×8

284.9

U

25500

6375

2833

1593

1020

708

520

398

314

255

210

177

150

130

113

D

0.05

0.18

0.41

0.73

1.15

1.66

2.26

2.95

3.74

4.63

5.6

6.7

7.85

9.17

10.54

G1308/40/100

130

8

8×8

247.6

U

19153

4788

2128

1197

766

532

390

299

236

191

158

133

113

97

85

D

0.05

0.21

0.48

0.85

1.33

1.91

2.6

3.14

4.32

5.34

6.49

7.76

9.11

10.55

12.22

G1208/40/100

120

8

8×8

229.0

U

16320

4080

1813

1020

653

453

333

255

201

163

134

113

96

83

72

D

0.06

0.23

0.52

0.92

1.44

2.07

2.83

3.7

4.68

5.8

7

8.39

9.85

11.5

13.2

G1008/40/100

100

8

8×8

191.7

U

11333

2833

1259

708

453

314

231

177

139

113

93

78

67

57

50

D

0.07

0.28

0.62

1.1

1.73

2.48

3.39

4.45

5.61

6.97

8.43

10.05

11.94

13.73

15.94

G908/40/100

90

8

8×8

173.1

U

9180

2295

1020

573

367

255

187

143

113

91

75

63

54

46

40

D

0.08

0.31

0.69

1.22

1.92

2.77

3.77

4.93

6.26

7.72

9.35

11.17

13.24

15.25

17.57

G808/40/100

80

8

8×8

154.4

U

7253

1813

805

453

290

201

148

113

89

72

59

50

42

37

32

D

0.09

0.34

0.77

1.38

2.16

3.11

4.25

5.56

7.04

8.71

10.5

12.66

14.73

17.53

20.11

G758/40/100

75

8

8×8

145.1

U

6375

1593

708

398

255

177

130

99

78

63

52

44

37

32

28

D

0.09

0.37

0.83

1.47

2.31

3.33

4.54

5.92

7.5

9.27

11.25

13.55

15.78

18.47

21.42

G756/30/100

75

6

8×8

140.1

U

6375

1593

708

398

255

177

130

99

78

63

52

44

37

32

28

D

0.09

0.37

0.83

1.47

2.3

3.33

4.54

5.91

7.49

9.26

11.24

13.53

15.76

18.44

21.39

G756/40/100

75

6

8×8

110.1

U

4781

1195

531

298

191

132

97

74

59

47

39

33

28

24

21

D

0.09

0.37

0.83

1.47

2.3

3.31

4.52

5.9

7.56

9.22

11.25

13.55

15.93

18.48

21.44

G706/30/100

70

6

8×8

131.1

U

5553

1388

617

347

222

154

113

86

68

55

45

38

32

28

24

D

0.1

0.39

0.89

1.58

2.47

3.56

4.85

6.32

8.04

9.96

11.99

14.41

16.82

19.9

22.65

G706/40/100

70

6

8×8

103.2

U

4165

1041

462

260

166

115

85

65

51

41

34

28

24

21

18

D

0.1

0.39

0.88

1.58

2.46

3.55

4.87

6.38

8.05

9.91

12.09

14.19

16.85

19.95

22.7

Notes:
1. U: safe and uniformly distributed load, KN/m2.
2. D: the maximum deflection corresponding to the listed safe load.
3. Theoretical weight is the weight of 1m length of hot dipped galvanized grating.

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