Custom Steel Box Enclosures & Storage Tank Fabrication – AS/NZS 3678, AS1397, AS/NZS 5131, AS/NZS 1554

Steel box enclosures and storage tanks are not just cut-and-weld jobs. They involve plate selection, forming, fit-up, welding, surface treatment and dimensional verification — and for Australian projects, every step must be traceable to AS/NZS standards.

We fabricate both product types in our factory, working to the full Australian standard chain. Whether you need an enclosure to protect equipment, or a tank to store liquids, the fabrication discipline is the same: certified material, qualified welding, documented inspection.

• Two Products: Steel box enclosures and storage tanks

• Four Standards: AS/NZS 3678, AS1397, AS/NZS 5131, AS/NZS 1554

• Certified Fabrication: AS/NZS 5131 quality system

• Export Ready: Documented quality, worldwide shipping

What We Fabricate

Steel Box Enclosures

For industrial enclosures, equipment housings, modular structures and custom steel containers — built from AS/NZS 3678 plate or AS1397 coated steel, with sizes, openings, doors and reinforcements to your drawing.

Storage Tanks

For water, oil, chemicals, fuel and industrial liquids — atmospheric or low-pressure. Built from AS/NZS 3678 plate, with AS1397 coated components where needed. Options include ladders, manholes, level gauges, flanges and insulation.

Standards Compliance Matrix

Fabrication Focus: Boxes and Tanks

Boxes and tanks demand different fabrication priorities. Our process covers both.

For Steel Box Enclosures:

• Plate cutting and forming — precision cutting of AS/NZS 3678 plate and AS1397 coated steel

• Fit-up and alignment — panels, doors, openings and reinforcements positioned to drawing

• Welding — AS/NZS 1554 qualified procedures for structural and sealing welds

• Dimensional verification — overall dimensions, opening positions and flatness checked

• Surface treatment — priming, painting or galvanizing matched to exposure

For Storage Tanks:

• Shell rolling and forming — plate rolled to diameter with controlled roundness

• Longitudinal and circumferential welds — performed to AS/NZS 1554 qualified procedures

• Nozzle and fitting installation — flanges, manholes and level gauges positioned and welded

• Leak testing — hydrostatic or air tightness test before shipment

• Surface treatment — internal and external coating matched to stored liquid

From Drawing to Delivery: 5 Steps

1. Drawing Review — We check your drawings, confirm AS/NZS requirements, and flag anything that needs clarification.

2. Material Procurement — AS/NZS 3678 plate and AS1397 coated steel sourced with full certificates.

3. Fabrication & Welding — Cutting, forming and welding to AS/NZS 1554 qualified procedures.

4. Surface Treatment — Priming, painting, galvanizing or epoxy coating matched to your exposure.

5. Inspection & Release — Dimensional checks, weld inspection and final QC before packing.

Then we export-pack, container-load and ship with full documentation. Installation manuals and online support are included.

Materials & Surface Finishes

Quality Assurance & Traceability

Every project follows a documented quality system aligned with AS/NZS 5131 — from material certificates to welding records, inspection and testing. Full traceability is maintained throughout fabrication, and each shipment is supported by the documentation package below.

Documentation Package

Each shipment includes:

• Material Test Certificates — traceable to heat number and project mark

• WPS/PQR — AS/NZS 1554 qualified welding procedure specifications

• Welder Certificates — AS/NZS 2980 or ISO 9606.1 qualified

• ITP Records — inspection and test plan sign-offs

• NDT Reports — visual, MT, PT, UT or RT inspection as specified

• Dimensional Inspection Records — verified against drawings

• Surface Treatment Records — coating and corrosion protection documentation

• Leak Test Reports — for storage tanks

• As-built Shop Drawings — with component marks and erection sequence

• Packing List — weights, dimensions and drawing references

Why Choose FASECbuilding?

At Hangzhou FAMOUS Steel Engineering Co., Ltd. (FASECbuilding), we bring over 20 years of experience in steel structures and fabrication and exports to more than 100 countries and regions, specialising in steel bridges, factory buildings, trusses, composite floor decking and custom steel components — with dedicated capability for Australian and New Zealand standard projects.

When you work with us, you get:

• AS/NZS 5131 & 1554 compliant fabrication — documented and traceable

• Two product types, one quality system — boxes and tanks fabricated under the same AS/NZS discipline

• 20+ years in steel fabrication and export

• 100+ countries and regions served

• OEM/ODM — built to your drawings, not from a catalog

• Material certificates and inspection reports ready for your project file

• Export packing and worldwide shipping with full logistics support

Send us your drawings and required standard today for a free quotation and technical proposal — Hangzhou FAMOUS Steel Engineering Co., Ltd. (FASECbuilding) is ready to fabricate your steel box enclosures and storage tanks the right way, to Australian standards, with documentation you can rely on.