corrugated galvanized steel culvert pipe

 Large diameter corrugated steel pipe/ galvanized corrugated culvert pipe

Overview>>

Metal corrugated pipe culvert is also called corrugated pipe culvert or corrugated steel culvert, refers to lay buried in the highway, railway culvert under the screw corrugated pipe, it is made of corrugated metal plate roll or semicircle corrugated steel plate made of makings of circular corrugated pipe, widely used in highway, railway, bridge, tunnel, retaining wall and all kinds of mines, the retaining wall of roadway supporting and other projects in the culvert (tube).

Corrugated metal pipe is a perfect combination of strength, aesthetics, durability, economy and performance. An increasing number of engineers and designers tend to choose corrugated metal pipes for culverts, storm sewers, small bridges, grade separations and storm water detention systems.

Technical Standard>>
1.Material of steel plate: Q235/SS400 hot rolled steel plate
2.Thickness of steel plate:2mm-8mm
3.classification by assembly:Annular flanged corrugated metal pipe/Nestable semicircle corrugated metal pipe
4.Depth of fill: 1.5-60m
5.Pipe Diameter: 0.5-12m
6.Waveform parameter: pitch/gap of waves(P)*wave depth(D)(Unit mm)
150*25,200*55,150*50,150*65,300*110,400*180
7.Antiseptic treatment: Thickness of hot dip galvanized zinc ≥84 um. Secondary anti-corrosion (generally increases the bitumen coating)
8.Service life more than 100years.
9.Execution standard: on the basis of JTT road 791-2010 with the corrugated steel pipe culverts channel (plate) for standard production.
10.Pressure class:0.1-6.0mpa
11.Distortion 0.2% max under concentrated load resistance N(KGF)100N.
12.Distortion 0.1D max under uniform load resistance(KGF)
13.Vertical leak:No slurry leak 
14.Corrugated pipe with no damage under axial tensile N (KGF) 2450 N.
15. No slurry leak  when R = 300 in resistance bending test.
16. Appearance: clean, no holes, seaming without crack, without tripping.

Advantages of metal pipe culvert  compared to reinforced concrete pipe culvert >>

• Lightweight
• Economical
• Easy to install
• Versatile
• Durable

 Quality control>>

• Our company strictly conform to ISO9001-2000 quality management system.
• Raw materials: coming raw materials must be with the corresponding certificate of product quality and 2% per batch sampling. If failed, the second inspetion or test wil be required, and any nonconforming items will be taken to the return processing.
• Inspection of semi-finished products: each process semi-finished products to send professional quality control staff, after passing the test before the next process. Found unqualified items, timely rework, rework still fail the test and put it into the waste repository.
• End products: before out of the factory,check every seat culverts bellows section or plate number ,check  its geometry  and   the thickness of  zinc coating  sampling 5%.When the products after passing, the products quality certificate issued by the Technical Department

Specification>> 

Diameter:500mm-2500mm
Wall thickness:3.0mm-5.0mm
Our corrugated metal pipe have greater strength, widely used in highway and railway stormwater culvert.

Large diameter corrugated steel pipe Pictures for references>>

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