Hengshui Yitong Metal Products Co., Ltd

Spiral Corrugated Pipe,china metal culvert,metal culvert,Spiral Pipe Manufacturers,steel corrugated pipe, Manufacturer and Supplier - China(CN)

corrugated metal pipe

corrugated metal pipe

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Product Features

Corrugation 380mm x 140mm
corrugated metal pipe
1.Multiplate structures pipe can be used as:
- culverts
- bridges
- tunnels
- under passed
- ecological crossing
- pedestrian tunnel
- hangers
- shelter
- warehouse
- stores for ammunition
- belt conveyor protection
- ventilating duct
- and for reinforcement and reconstruction of existing structures as well.

Corrugated steel pipe culvert can be used for every class of service load provided that appropriate backfilling is performed.

2.Steel
Corrugated steel pipe culvert used for mltiplate structure pipe is produced in accordance with Chinese standard.
Minimum yield strength 235N/mm2 and 345N/mm2
Steel standard Q235 and Q345
Also can accordance with EN10025
Steel standard S355JR, S235JR, S315MC
And can adopt the other standard steel according to customers’ demand
3. Durability
Corrosion resistance of steel is the main factor deciding about the durability of steel structures. Long-term tests done in many countries of world have proven that, the proper corrosion protection of the steel structure let to prolong the life time of structures. Durability of structures built with use of multiplate 150 Corrugated Metal Culvert Pipe designed for the zinc coatings give the so-called cathode protection. Thanks to this they can protect the steel also in electrochemical way achieving the multi-elemental corrosion protection system.
Attention: in strong corrosion environment, we suggest hot-dip plastic on the galvanization, plastic thick 0.3mm, (single face dip), the durability is more than 100 years.
When designing the structure plate culvert pipe durability should be considered with regards to:
- zinc coatings
- paint coatings
-sacrificial thickness of steel as allowance for corrosion
(increasing of the plate thickness)
- other kinds of protections
Corrugated metal culvert is necessary to remark that the corrosion points appear most often in the bottom part, where the stress level in the steel structure is the

 Corrugation 380mm x 140mm

corrugated metal pipe

1.Multiplate structures pipe can be used as:

- culverts

- bridges 

- tunnels 

- under passed 

- ecological crossing

- pedestrian tunnel 

- hangers 

- shelter 

- warehouse 

- stores for ammunition 

- belt conveyor protection 

- ventilating duct 

- and for reinforcement and reconstruction of existing structures as well.

 

Corrugated steel pipe culvert can be used for every class of service load provided that appropriate backfilling is performed.

 

2.Steel

Corrugated steel pipe culvert used for mltiplate structure pipe is produced in accordance with Chinese standard.

Minimum yield strength 235N/mm2 and 345N/mm2

Steel standard Q235 and Q345

Also can accordance with EN10025

Steel standard S355JR, S235JR, S315MC

And can adopt the other standard steel according to customers’ demand

3. Durability

Corrosion resistance of steel is the main factor deciding about the durability of steel structures. Long-term tests done in many countries of world have proven that, the proper corrosion protection of the steel structure let to prolong the life time of structures. Durability of structures built with use of multiplate 150 Corrugated Metal Culvert Pipe designed for the zinc coatings give the so-called cathode protection. Thanks to this they can protect the steel also in electrochemical way achieving the multi-elemental corrosion protection system.

Attention:  in strong corrosion environment, we suggest hot-dip plastic on the galvanization, plastic thick 0.3mm, (single face dip), the durability is more than 100 years.

When designing the structure plate culvert pipe durability should be considered with regards to: 

- zinc coatings

- paint coatings

-sacrificial thickness of steel as allowance for corrosion

 (increasing of the plate thickness)

- other kinds of protections

Corrugated metal culvert is necessary to remark that the corrosion points appear most often in the bottom part, where the stress level in the steel structure is the lowest. It means that by designing the structure according the most stressed cross-section-the upper sphere, there is an additional security reserve in scope of the structure durability.

System of corrosion protection duplex

For longer structure durability (especially in agressive environment) there is a possibility of the additional corrosion protection by epoxy painting. Protection of structure both with zinc coating and epoxy coating creates duplex system. Also, after assembly corrugated metal culvert , we can make the duplex corrosion protection according to customers request color and materials.

 

corrugated pipe

Bolts and nuts 

The plate making up the structures are connected by high strength bolts of grade not lower than 8.8. Their length varies with the thickness of the steel plates. Generally shorter bolts will be used to join two plates, longer bolts for three plate laps. Nuts should be situated from inside of culvert for bottom an corner plates, but in top plates the nuts should be situated from outside of culvert.

  

Plate thickness

(mm)

Section area

mm2/mm)

 

Moment of Inertia

mm4/mm

 

Section modulus

mm3/mm

 

Gyration radius

mm)

 

3.0

3.883

9020.350

210.646

48.200

3.5

4.531

10538.000

245.911

48.227

4.0

5.179

12060.038

281.226

48.255

4.5

5.828

13586.582

316.592

48.284

5.0

6.477

15117.752

352.011

48.313

5.5

7.126

16653.665

387.486

48.343

6.0

7.776

18194.441

423.016

48.373

6.5

8.425

19740.198

458.605

48.404

7.0

9.076

21291.056

494.255

48.435

8.0

10.377

24408.550

565.740

48.500

9.0

11.679

27547.880

637.485

48.567

10.0

12.983

30710.006

709.507

48.636

 

Product Specifications

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