Certified pressure welding to AS/NZS 3992
Pressure welding leaves no room for shortcuts. WJC pressure welders are qualified to AS/NZS 3992:2020 and AS/NZS ISO 9606-1, with regular third-party testing and inspection, and experience across power stations, gas facilities and industrial plant.
Pressure welding scopes
- Boiler tube, header and high-pressure pipework welding
- Pressure piping repairs, replacements and modifications
- Pipe and plate welding qualified in all positions, including 6G
- Carbon, stainless and alloy steels
- Weld traceability, WPS procedures and third-party inspection
- Work in confined spaces and at heights
Quality you can sign off on
Our welders work to documented weld procedures and keep the traceability records your inspectors and asset owners need. We work alongside third-party inspection and NDT providers so weld quality is proven, not just promised.
Pressure welding is often needed at short notice during an outage or breakdown. Our crews are mobile, fully equipped and available 24/7.
Qualified pressure welders, on site or in the workshop
Every WJC pressure welder holds current AS/NZS 3992 and AS/NZS ISO 9606-1 qualifications for the processes and positions they weld. We can supply a single pressure welder to join your crew or a full welding team with supervision for larger scopes.
Based in Dalby, we cover power stations, gas compression and processing facilities, mines and industrial plant across the Western Downs, Surat Basin and Darling Downs.
Why work with WJC
- Certified to AS 1554.1 structural steel, AS/NZS 3992 pressure welding and AS/NZS ISO 9606-1 welder qualification
- Regular third-party welding supervisor testing and inspection
- Over 15 years of on-site experience in energy, mining, gas and agriculture
- Fully equipped site vehicles with high quality, reliable tooling
- Standard 11, coal board medical, confined space and working at heights
- Available 24/7 for breakdowns and emergency call-outs
Industries we serve
Gas and CSG
Pressure and pipeline welding, tie-ins and maintenance for the Surat Basin gas fields.
Mining
Heavy equipment boilermaking, fixed plant maintenance and shutdown crews for Queensland mines.
Power Stations
Boiler, air heater, mill and duct work overhauls and pressure welding for outages.
Renewables
Structural steel, fabrication and maintenance support for solar, wind and battery projects.
Agriculture
Farm machinery repairs, cattle crates, irrigation pump stations, trailers and on-farm steelwork.
Where we work
Based in Dalby and mobilised across the Western Downs and beyond.
Related services
Mobile Boilermaking
Fully equipped site vehicles for on-site cutting, fabrication and repair, wherever the job is.
Pipeline Welding
In-situ pipeline welding, tie-ins and weld remediation for the Surat Basin gas fields.
Structural Steel Fabrication
Structural steel fabrication and erection to AS 1554.1, in the workshop or on site.
Mechanical Fitting
Pump, valve and gearbox rebuilds, rotating equipment overhauls and laser shaft alignment.
Shutdown Crews
Boilermakers, fitters and riggers for planned shutdowns and outages, on schedule.
24/7 Breakdown Repairs
After-hours and emergency call-outs for plant, machinery and pipework failures.
Common questions
What standards are your pressure welders qualified to?
AS/NZS 3992:2020 for pressure equipment welding and AS/NZS ISO 9606-1 for welder qualification. Our structural work is to AS 1554.1.
Can you weld pressure pipework on site?
Yes. Our pressure welders are experienced in both workshop and field conditions, including confined space and elevated environments.
Do you work with NDT and inspection providers?
Yes. We regularly work with third-party inspectors and NDT technicians and can coordinate testing as part of the scope.
Planning a shutdown, project or breakdown response?
Talk to us about scope, timing and site requirements. We'll talk the job through with you directly.