corrugated steel culvert are made of carbon steel. Steel pipes with annlar corrugation have high load bearing capacity. Culverts built with this kind of pipe segments are called corrugated steel culverts or CSP. To prevent corrosion, corrugated metal culvert pipes are usually made of galvanized carbon steel usually with a zinc coating range from 275g/m2 to 1200g/m2, which is still changeable and subject to customers’ requirements.

Technical Specs:

1.Material of steel plate: Q235 steel plate

2.Thickness of steel plate:1.5mm-8mm

3.Shape: Round, Half, Arch,Oval ect.

4 Assembly:Annular flanged/Nestable

5 Depth of fill: 1.5-60m

6.Pipe Diameter: 300mm-9000mm

7.Corrugation: 68*13,100*20,150*50,200*55, 380*140,300*110 ,400*150

8.Antiseptic treatment: hot dip galvanized zinc ≥610g/m2.

9.Service life more than 70 years.

10:.Standard: JTT 791-2010 ,or AASHTO M36.

Diameter (m)	The Thickness(mm)and correspondent Limited Filling height(m)
Diameter (m)	3	4	5	6	7	8	9	10
4	12.83	17.12	21.40	25.68	29.97	34.25	38.53	42.81
4.5	11.41	15.21	19.02	22.83	26.63	30.44	34.25	38.05
5	10.27	13.69	17.12	20.54	23.97	27.40	30.70	34.13
5.5	9.33	12.45	15.56	18.67	21.79	24.90	28.02	31.01
6	8.55	11.41	14.26	17.12	19.97	22.83	25.68	28.54
7	7.33	9.78	12.22	14.67	17.12	19.56	22.01	24.46
8	6.41	8.55	10.69	12.83	14.98	17.12	19.26	21.40
9	5.70	7.60	9.50	11.41	13.31	15.21	17.12	19.02
10	5.13	6.84	8.55	10.27	11.98	13.69	15.40	17.12
11	4.66	6.22	7.77	9.33	10.89	12.45	14.00	15.56
12	4.27	5.70	7.12	8.55	9.98	11.41	12.83	14.26
13	3.94	5.26	6.58	7.89	9.21	10.53	11.85	13.16
14	3.66	4.88	6.10	7.33	8.55	9.78	11.00	12.22
15	3.41	4.55	5.70	6.84	7.98	9.12	10.27	11.41