AS/NZS 1554.4:2004 Structural steel welding - Welding of high strength quenched and tempered steels
- AS/NZS 1554.4:2004
- Valid from
- AS/NZS 1554.4:1995
- Information provider
- Standards New Zealand
- Standards New Zealand, Standards Australia
- Information type
- New Zealand Standard
- Hard copy, PDF
This Standard specifies requirements for the welding of steel structures made up of combinations of steel plate, sheet or sections, including hollow sections and built-up sections, or castings and forgings, by the following processes:
- Manual metal-arc welding (MMAW);
- Submerged arc welding (SAW);
- Gas metal-arc welding (GMAW), including pulsed mode;
- Gas tungsten-arc welding (GTAW or TIG);
- Flux-cored arc welding (FCAW);
- Electroslag (including consumable guide) welding (ESW);
- Electrogas welding (EGW).
It is limited to the welding of quenched and tempered steel parent material.
The Standard applies to the welding of steelwork in structures complying with appropriate Standards. Where welded joints in these structures are governed by dynamic loading conditions, the Standard applies only to those welded joints that comply with the fatigue provisions of AS 3990, as limited by Item 2 below, or with the directly equivalent fatigue provisions of other application Standards.
The Standard applies to welded joints that are
- not subject to fatigue conditions; or
- subject to fatigue conditions; and
- the stress range in the welded joint complies with the permissible stress range of stress Categories C, D, E or F of AS 3990, or weld categories lower than or equal to detail Category 112 of AS 4100 or NZS 3404.1; or
- the stress range in the welded joint is not more than 80% of the permissible stress range of stress Category B of AS 3990; or
- the stress range in the welded joint is greater than 80% of the permissible stress range for stress Category B of AS 3990, or exceeds the stress range permitted for detail Category 112 of AS 4100 or NZS 3404.1, but does not exceed the maximum stress ranges permitted for these categories.
In addition to the abovementioned structures, the Standard applies to the welding of bridges, cranes, hoists, earthmoving equipment, other dynamically loaded structures and steelwork in applications other than structural.