Corrugation 380mm X 140mm - China

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.

Company Contact:

• Posted By: Hengshui Yitong Pipe Industry Co.,Ltd.

• Phone: +86-318-5876998

• Address: Guangchuan Industrial Zone, Hengshui City, Hebei Province,China., Hengshui , Hebei , China

• Email:

• Website: https://www.corrugatedmetalculvert.com

• Business Description: Hengshui Yitong Pipe Industry Co., Ltd. is professional corrugated culvert pipes manufacturer, was founded in 1998, 600 employees.
  
  After 14 years of growth, Hengshui Yitong Pipe Industry Co., Ltd. became the most comprehensive leading corrugated culvert pipes manufacturer.
  
  We have more than 30 patents, and are the member unit joined to formulate the state standard, .
  
  Our main products include 4 types culvert pipes and irregular-shaped pipes, annual capacity is 500, 000 meters, the company obtained ISO9000 quality and ISO 14000 certificates, we can produce American and European standard products according to the customers' requirements.
  
  As a leading company in corrugated culverts pipes manufacturing, we focus on providing professional service and prompt lead time, producing quality products at competitive price.