AS/NZS 1163 C250 Pipe

AS/NZS 1163 C250 Pipe – Cold-Formed Structural Steel Hollow Section for Reliable Engineering Solutions

AS/NZS 1163 C250 Pipe is a cold-formed welded structural steel hollow section manufactured to Australian and New Zealand standards, widely specified in building frames, infrastructure projects, and industrial fabrications.

Hebei Longma Group Limited was created in 2003, and manufactures C250 grade structural tubes with outer diameters ranging from 60.3mm to 2032mm and wall thicknesses ranging from 4mm to 100mm, with an annual production capacity of over 1,000,000 tons, produced in a 230,000-square-meter facility. Reliable load bearing properties, great weldability and dimensional precision with a minimum yield strength of 250 MPa will be an advantage for your projects.

With our lean manufacturing approach, we can ship as soon as 7 days to keep your construction timelines on track.

Reliable Mechanical Performance and Structural Integrity

The C250 grade has a minimum yield strength of 250 MPa and is appropriate for ordinary structural frames where predictable performance is required. You get a solid basis for load-bearing columns, beams and trusses without over-engineering and high material prices.

Thanks to a precise chemical composition your welding, cutting and drilling operations go smoothly. This simplifies onsite fabrication, minimises rework and labour cost.

The pipe is made using cold-forming methods, thus the dimensional tolerances are tight. Your assembly teams will find it easy to align during installation, saving you delays and adjustment time.

Australian and New Zealand Standards compliance

Manufacturing to AS/NZS 1163 ensures that all batches fulfil quality standards recognised in Australia, New Zealand and International markets. You acquire materials that comply with local building rules and project specifications without further verification requirements.

Each pipe is stencil marked continuously to display manufacturer's name, standard reference, grade indication and heat number. This traceability helps you with your quality checks and makes regulatory approvals easier.

Documentation packages comprise Mill Test Certificates as per EN 10204 Type 3.1, chemical composition reports, mechanical test findings and dimensional inspection records. When your clients or inspectors ask for evidence, you have all records at your disposal.

Wide Range of Industrial Applications

AS/NZS 1163 C250 Pipe is used in a number of industries where strength, formability and cost-effectiveness come together.

Building and Infrastructure Portal frames for warehouses, retail sheds and low rise commercial buildings employ C250 for roof support and wall framing. In long-span designs its predicted rigidity without excessive weight is an advantage.

Agricultural and Rural Projects Livestock handling equipment, fence frameworks and irrigation infrastructure need corrosion resistant solutions. The service life of C250 is extended in tough outdoor situations by hot-dip galvanising to AS/NZS 4680.

Transport and Machinery Truck trailers, boat trailers, mining equipment frames and machinery supports need materials that can take fatigue loading and dynamic stress. The ductility of the C250 is regulated to provide safe operation during multiple load cycles.

The pipe provides more flexibility to your sourcing options as it satisfies different technical problems and maintains the quality criteria.

Technical Specifications and AS/NZS 1163 C250 Pipe Range

Longma Group receives raw materials from the main Chinese steel mills, including Bao Steel, HBIS, and Shougang, to ensure that the chemical composition and mechanical qualities are consistent from one batch of manufacturing to the next. Heat treatment technology increases the weld seam strength, and modern inspection equipment is used to discover interior defects by ultrasonic or eddy current testing.

Value-Added Fabrication and Anti-Corrosion Services

Beyond standard pipe supply, you access comprehensive fabrication and surface protection options that reduce your downstream processing costs.

Fabrication Services: Welding, perforating, expansion processing, and end treatment prepare pipes for direct integration into your assemblies. Custom cutting to length and hole drilling align with your design specifications.

Anti-Corrosion Treatments: Hot-dip galvanising, FBE coating, 2PP coating, 3LPE coating and 3PE coating improve the service life in corrosive environment. Silicon levels are controlled throughout the galvanising process to provide a consistent grade of zinc coating per AS/NZS 4680.

These services also reduce your lead-time, unify your supply chain and simplify your quality control since fabrication is performed under one quality management system, certified to ISO 9001, ISO 14001 and ISO 18001.

Strict Quality Control and Full Traceability

All manufacturing steps are implemented according to specified processes to meet compliance and performance.

Chemical composition of the raw materials is checked before formation. Professional shaping and welding procedures provide uniform geometry and weld integrity. Mechanical testing assesses the yield strength, tensile strength and elongation. Dimensional Inspection - Checks exterior diameter, wall thickness, length and straightness.

Non-destructive testing is used to discover internal faults in longitudinal welds. Surface defects like as cracks or severe pitting may be detected by visual examination. Toughness is verified by Charpy V-notch impact testing for cold areas where the designation "L0"is requested for projects.

Full traceability down to raw material heat numbers for completed pipes supports your project documentation and regulatory needs. Available for third party examination by BV, TUV, Intertek etc. upon request.

How to Select a Reputable Supplier for Your Projects

The correct partner may make or break a project, affecting costs and long-term performance.

Confirm expertise in manufacturing AS/NZS 1163 structural hollow sections, ability to deliver different sizes and wall thicknesses and steady production capacity to meet your project timetable.

Quality control capacity is assessed by careful raw material inspection, professional forming and welding process, extensive mechanical and dimensional testing, and full traceability of raw material to completed pipe.

Review project support capability including reliable delivery schedules, professional technical communication, customized solutions for cutting, coating, marking, and packaging, plus experience handling Australian and international project requirements.

Hebei Longma Group exports to more than 90 countries providing proven logistical coordination and paperwork assistance to engineering contractors, steel distributors, stockists and international importers. Our technical team offers Inspection and Test Plans, Manufacturing Procedure Specifications, Material Test Certificates and product inspection records to ensure seamless clearance of your project.

FAQ

Q：What is the difference between C250 and C350 grades?

A：C250 has a minimum yield of 250 MPa, while C350 offers 350 MPa. C250 is typically chosen for general structural use where cost-efficiency is prioritized over maximum weight reduction. Higher grades cost more but allow lighter structures when strength-to-weight ratio is critical.

Q：Can the product be hot-dip galvanized?

A：Yes, it is fully compatible with AS/NZS 4680 galvanizing standards. Silicon levels are monitored to ensure a high-quality zinc coating without defects such as uneven thickness or poor adhesion.

Q：Does 'Cold-Formed' mean it is brittle?

A：No. The AS/NZS 1163 standard requires specific ductility levels, ensuring the pipe can withstand structural loads without sudden failure. Elongation values confirm formability and toughness.

Q：How can I verify if a pipe is genuine AS/NZS 1163 C250?

A：Check the continuous stencil marking on the pipe, which must include the manufacturer's name, the standard (AS/NZS 1163), the grade (C250), and the heat number for traceability. Request Mill Test Certificates for additional verification.

Q：Is C250 suitable for pressure applications?

A：While primarily a structural grade, it can be used in low-pressure fluid transport. However, it is not a substitute for dedicated pressure pipes like those under AS 1074 or ASTM A53, which have stricter hydrostatic testing requirements.

Contact Us

Whether you need standard sizes or customized fabrication of AS/NZS 1163 C250 Pipe, we deliver solutions that match your timeline and budget. Reach us at info@longma-group.com for immediate assistance.