The steel corrugated sections are Galvanized (Z610) or , with corrugation profile of 68 x 13mm., The corrugated sheets are fabricated in standard lengths with an effective laying of 1088mm, with half-lengthed sections of 544 mm. The sheets are available in various thicknessess, including 1.6mm, 2.0mm, 2.5mm and 3.0mm to meet most structural design requirements.
At Qingdao Regions Trading Co., Ltd (Qingdao Climber), we specialize in manufacturing and supplying AS/NZS 2041 compliant flanged corrugated steel culvert pipes for infrastructure projects across Australia and international markets. With over 10 years of export experience and a production capacity of approximately 1500 tons of corrugated steel structure products per month, we provide reliable solutions for government projects, contractors, distributors, and engineering companies.
Specification
| Diameter(mm) | Filling height and correspondent Thickness | |||||||||||
| 0.6m | 0.7m | 0.8m | 0.9m | 1m | 2m | 3m | 5m | 7m | 9m | 10m | 13m | |
| 400 | 2.50 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.50 |
| 500 | 2.50 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.50 |
| 600 | 2.50 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.50 |
| 700 | 2.50 | 2.50 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.50 |
| 800 | 2.50 | 2.50 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.50 |
| 900 | 2.50 | 2.50 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.50 |
| 1000 | 3.00 | 2.50 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.50 | 3.00 |
| 1100 | 3.00 | 2.50 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.50 | 3.00 |
| 1200 | 3.00 | 2.50 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.50 | 3.00 | 3.00 | ||
| 1300 | 3.00 | 2.50 | 2.50 | 2.00 | 2.00 | 2.00 | 2.50 | 2.50 | 3.00 | 3.00 | ||
| 1400 | 3.00 | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 3.00 | 3.00 | ||||
| 1500 | 3.00 | 2.50 | 2.50 | 2.50 | 2.50 | 3.00 | 3.00 | |||||
| 1600 | 3.00 | 3.00 | 2.50 | 2.50 | 2.50 | 3.00 | 3.00 | |||||
| 1700 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | |||||||
| 1800 | 3.00 | 3.00 | 3.00 | 3.00 | ||||||||
What is an AS/NZS 2041 Flanged Corrugated Steel Culvert?
A flanged nestable corrugated steel culvert is a modular drainage pipe system consisting of half-round corrugated steel sections with external flanges. These sections are bolted together on-site to form a full circular pipe.
This culvert design was originally developed in the 1930s to address transportation challenges for large diameter pipes. Instead of shipping fully assembled pipes, nestable sections can be stacked inside each other, drastically reducing shipping volume and cost.
For projects in Australia, these culverts are manufactured according to the AS/NZS 2041 standard, which specifies requirements for buried corrugated metal structures used in drainage and infrastructure projects.
Key characteristics include:
Modular bolt-together steel sections
High-strength corrugated structural design
Hot-dip galvanized corrosion protection
Compact nesting for efficient shipping
Flexible installation for remote or difficult locations
These features make flanged corrugated steel culverts particularly suitable for Australia’s diverse environments, including rural roads, mining areas, agricultural regions, and remote infrastructure developments.
Compliance with AS/NZS 2041 Standard
The AS/NZS 2041 standard governs the design and manufacturing requirements for buried corrugated metal structures in Australia and New Zealand. Compliance ensures that culverts meet strict structural, durability, and performance criteria.
Our flanged corrugated culvert pipes are produced to meet or exceed AS/NZS 2041 specifications, including:
Structural Strength
The corrugated profile enhances the structural performance of the pipe, allowing it to withstand heavy soil loads and traffic loads once buried.
Typical corrugation profile:
68 mm × 13 mm
This profile provides an optimal balance between flexibility and strength.
Steel Material
We use high-quality carbon steel plates, typically:
Q235B (similar to S235JR)
Q345B (similar to S355JR)
These materials offer excellent mechanical strength, weldability, and durability.
Corrosion Protection
To meet Australian environmental requirements, all culvert plates undergo hot-dip galvanization.
Standard zinc coating:
610 g/m² (Z610)
Optional coatings up to 1200 g/m²
The galvanized layer provides long-term protection against corrosion, even in harsh environments such as coastal areas or regions with high rainfall.
Protective Coatings
For additional protection during installation and service life, bitumen coating is applied during culvert assembly.
Benefits include:
Improved corrosion resistance
Reduced soil abrasion
Increased lifespan
Technical Specifications of Flanged Corrugated Steel Culverts
Our flanged corrugated culverts are manufactured in a wide range of specifications to meet project requirements.
Corrugation Profile
Standard profile:
68 mm × 13 mm
This profile is widely used in international culvert systems and provides excellent load distribution and structural strength.
Plate Thickness
Available steel thicknesses include:
1.6 mm
2.0 mm
2.5 mm
3.0 mm
Thicker plates are recommended for larger diameters or higher load conditions.
Plate Length
Standard effective laying length:
1088 mm
Half-length sections:
544 mm
This modular sizing simplifies transport and installation.
Pipe Diameter Range
Flanged corrugated culverts can be produced in multiple diameters depending on project requirements.
Typical diameters include:
500 mm
800 mm
1000 mm
1200 mm
1500 mm
1800 mm
2000 mm and above
Custom diameters are available upon request.
Connection Method
The pipe sections are joined using:
High-strength bolts
External flange plates
Sealing materials when necessary
This bolted connection system ensures:
Fast installation
Structural stability
Easy maintenance or replacement
Advantages of Flanged Nestable Corrugated Steel Culverts
Flanged corrugated steel culverts offer several advantages compared to traditional concrete or rigid drainage pipes.
1. Efficient Transportation
Because the culvert sections are nestable, they can be stacked compactly.
Benefits include:
Reduced shipping volume
Lower freight costs
Easier handling during transport
Ideal for export to Australia
For international shipments, this design significantly reduces logistics costs compared with transporting large concrete pipes.
2. Easy Installation
Flanged culverts are designed for quick on-site assembly.
Installation process:
Deliver nestable steel sections to site
Arrange sections according to design
Bolt flanged edges together
Install bedding and backfill soil
Compared with traditional culverts, installation requires:
Less heavy equipment
Less labor
Less time
This makes them ideal for remote Australian construction sites.
3. High Structural Strength
The corrugated steel structure distributes external loads effectively.
Advantages include:
Resistance to soil pressure
Ability to support heavy traffic loads
Flexibility that prevents cracking
Unlike rigid materials, corrugated steel pipes work together with surrounding soil, improving load-bearing capacity.
4. Excellent Durability
With hot-dip galvanization and bitumen coating, flanged corrugated culverts offer long service life.
Typical service life:
30–75 years depending on environmental conditions
They are suitable for:
High rainfall regions
Flood-prone areas
Coastal environments
Mining zones
5. Cost-Effective Solution
Compared with concrete culverts, corrugated steel culverts offer:
Lower transportation cost
Faster installation
Reduced labor requirements
Lower overall project cost
These advantages make them a popular choice for Australian infrastructure projects.
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We are assembling the flanged nestable pipe
Applications of Corrugated Steel Culverts in Australia
Flanged corrugated culverts are widely used in infrastructure and drainage systems.
Road Culverts
They are commonly installed under:
highways
rural roads
farm roads
access roads
Their structural strength makes them capable of supporting heavy traffic loads.
Stormwater Drainage Systems
Australia experiences intense rainfall in certain regions.
Corrugated steel culverts help manage stormwater by:
directing runoff
preventing flooding
protecting road structures
Small Bridges
Large diameter culverts can function as small bridge structures.
Advantages include:
faster installation
lower cost compared with concrete bridges
reliable structural performance
Agricultural Drainage
Farm areas require effective water management.
Corrugated steel culverts help:
drain farmland
maintain irrigation systems
prevent soil erosion
Mining and Remote Infrastructure
Mining projects often occur in remote regions of Australia.
Flanged nestable culverts are ideal because:
they are easy to transport
they can be installed quickly
they require minimal equipment
Manufacturing Process of Flanged Corrugated Steel Culverts
At Qingdao Climber, strict manufacturing processes ensure product quality and compliance with international standards.
Steel Plate Selection
High-quality carbon steel plates are selected according to project requirements.
Each batch undergoes:
mechanical property testing
thickness inspection
surface quality checks
Corrugation Forming
Steel plates are processed using advanced roll forming machines to produce the required corrugation profile.
This process ensures:
consistent corrugation dimensions
high structural strength
precise manufacturing tolerances
Punching and Flange Fabrication
Bolt holes are accurately punched along the flanged edges.
Flanges are carefully formed to guarantee:
accurate alignment
secure bolted connections
easy installation
Hot-Dip Galvanization
All steel components are immersed in molten zinc to create a protective coating.
Benefits include:
uniform zinc layer
excellent corrosion resistance
extended service life
Quality Inspection
Before shipment, every batch undergoes strict inspection including:
dimensional measurement
coating thickness test
bolt hole alignment check
packaging inspection
Packaging and Shipping to Australia
International logistics efficiency is one of the key advantages of flanged nestable culverts.
Nestable Bundles
Steel sections are stacked inside each other to form compact bundles.
This reduces:
container space
shipping cost
handling complexity
Container Loading
Products are typically shipped in:
20-foot containers
40-foot containers
Each shipment is carefully secured to prevent damage during transportation.
Delivery Options
We can ship to any major Australian port, including:
Sydney
Melbourne
Brisbane
Perth
Adelaide
For certain projects, door-to-door delivery solutions can also be arranged.
Global Project Experience
Qingdao Climber has supplied corrugated steel culvert systems to many international markets, including:
Mongolia
India
Malaysia
Ethiopia
Kenya
Sudan
South Sudan
Australia
Papua New Guinea
Bolivia
Our extensive export experience ensures that we understand the requirements of international infrastructure projects and can provide reliable solutions.
The flanged nestable pipe in the package
Why Choose Qingdao Climber as Your Corrugated Steel Culvert Supplier?
Over 10 Years of Industry Experience
We have extensive experience in designing and manufacturing corrugated steel structures for overseas markets.
Strong Production Capacity
Our factory can produce approximately:
1500 tons of corrugated steel products per month
This ensures stable supply for large projects.
Customizable Solutions
We provide customized culvert solutions based on:
project design
load requirements
environmental conditions
installation needs
Professional Customer Service
Our team offers full-process support, including:
technical consultation
quotation and design assistance
production tracking
shipping coordination
All inquiries receive responses within 24 hours.
Reliable Delivery
We emphasize:
on-time production
safe packaging
efficient international logistics
Customer satisfaction is always our top priority.
Future Outlook for Corrugated Steel Culverts in Australia
As Australia continues to invest in infrastructure development, rural roads, flood control, and mining projects, demand for durable and cost-effective culvert solutions will continue to grow.
Corrugated steel culverts offer a combination of:
structural reliability
economic efficiency
easy transportation
quick installation
These advantages make them an ideal solution for modern infrastructure construction.
Conclusion
AS/NZS 2041 flanged corrugated steel culverts are an essential component in Australia’s drainage and infrastructure systems. Their modular design, high structural strength, and corrosion-resistant galvanized coating make them a reliable and cost-effective solution for a wide range of projects.
With advanced manufacturing capabilities, strict quality control, and extensive export experience, Qingdao Regions Trading Co., Ltd (Qingdao Climber) is committed to supplying high-quality flanged nestable corrugated steel culvert pipes to Australian contractors, distributors, and engineering companies.
Whether for road construction, stormwater drainage, agricultural projects, or mining infrastructure, our corrugated steel culvert systems provide a durable and efficient solution. Please feel free to contact us anytime.
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