# AS/NZS 1554 Structural steel welding

> AS/NZS 1554 is the joint Australian/New Zealand standard series for structural steel welding; Part 1 covers welding of steel structures and defines weld categories SP (structural purpose) and GP (general purpose), with inspection and NDT requirements, and further parts cover stud welding, reinforcing steel, high-strength steels, fatigue-loaded structures, stainless steel and sheet steel.

- Source: https://amps.global/glossary/as-nzs-1554/
- Type: Glossary
- Published: 2026-09-05
- Tags: standards, Australia, New Zealand

## Key facts

- Part 1: welding of steel structures; Part 5: welding of steel structures subject to high levels of fatigue loading; other parts for stud, reinforcing, quenched and tempered, stainless and sheet steel
- Weld category (SP or GP) decides the permissible imperfection levels and the extent of NDT
- Inspection is by a qualified welding inspector with NDT to referenced AS standards for UT, RT, MT and PT
- Referenced by AS 4100 (steel structures) and NZS 3404 in New Zealand

Also known as: AS/NZS 1554.1, AS 1554, SP and GP weld categories.

## Why it matters locally

Most structural steel fabrication and site welding in Australia and New Zealand is inspected to AS/NZS 1554, so weld inspection reports quote the part, the weld category and the clause. Fabricators' quality systems and the inspection company's procedures both reference it.

## In AMPS

Because AMPS generates reports from your own Word templates, the code clause, acceptance criteria and revision block stay exactly as your QA system wrote them, with job data filled in automatically.

## Related pages

- [AWS D1.1](https://amps.global/glossary/aws-d1-1/)
- [Visual testing (VT)](https://amps.global/glossary/visual-testing/)
- [Magnetic particle inspection (MT/MPI)](https://amps.global/glossary/magnetic-particle-inspection/)

## Sources

- [Standards Australia](https://www.standards.org.au/)