Welding Without Compromise: Lessons from a Lifetime
By Herman Potgieter – Executive Manager at JC Auditors and ISO 3834 Trailblazer
In the formative years of South Africa’s industrial sector, welding quality was too often left to chance. Welds were judged by appearance alone — a shiny surface meant “job done.” For Herman Potgieter, a metallurgist with more than four decades of experience across ISCOR, ArcelorMittal, Afrox, Genrec, and the Southern African Institute of Welding (SAIW), the consequences of that mindset were all too real.
“We’d outsource critical welding jobs,” Potgieter recalls, “and had no assurance that subcontractors were following any recognised standard. BS/EN 729 existed internationally, but here at home, it was virtually unheard of.”
It was common to hear manufacturers insist, “We’ve been welding for years without a problem — why do we need certification now?”
But the industry was changing — and so were the risks.
Rising Complexity, Rising Responsibility
As steel structures became more intricate and materials evolved toward lighter, more economical alloys, the stakes grew higher.
Designers began specifying thinner sections and high-performance steels for pressure vessels, boilers, and structural components — all of which demanded precise, repeatable welds.
Simultaneously, global supply chains introduced stricter quality expectations. End-users and regulators began insisting that manufacturers take full responsibility for in-service performance — especially in the event of premature failure.
“You can’t inspect quality into a weld after the fact,” Potgieter emphasizes. “Welding is a special process — quality has to be built in from the very first step.”
The Arrival of ISO 3834
This growing recognition laid the foundation for ISO 3834, the international standard designed specifically for controlling welding quality throughout manufacture.
Unlike general quality systems such as ISO 9001, ISO 3834 dives into the technical heart of welding — from tender and contract review to personnel competence, consumable control, equipment calibration, subcontractor oversight, and inspection regimes.
The standard offers three levels — Comprehensive, Standard, and Elementary — allowing organisations to align requirements with project risk and complexity.
“Every successful project starts with a proper technical review,” Potgieter notes. “If you subcontract, you remain fully responsible for the outcome. That accountability can’t be delegated.”
The benefits are tangible:
✅ Fewer costly reworks
✅ Improved scheduling and efficiency
✅ Reduced liability exposure
✅ Enhanced safety and reliability
“A single failed weld can cost four to five times more to repair than doing it right the first time,” Potgieter adds. “ISO 3834 provides the structure to get it right — every time.”
South Africa’s Certification Journey
When the rollout began in 2008, just 20 companies held certification. By 2022, more than 300 organisations — spanning power generation, mining, petrochemicals, pulp and paper, agriculture, pressure equipment, rail, and even medical autoclave manufacture — had adopted the standard.
Today, as Lead ISO 3834 Technical Expert at JC Auditors (JCA), Potgieter continues to engage with key stakeholders in the region, ensuring welding quality remains a pillar of industrial safety.
More Than Compliance — It’s About Trust
“This isn’t a box-ticking exercise,” Potgieter concludes. “Behind every weld are lives, assets, and reputations. Quality welding isn’t optional — it’s foundational.”
About the Author
Herman Potgieter is a veteran metallurgical engineer and one of South Africa’s foremost champions of ISO 3834. With over 40 years of experience, he has played a key role in establishing welding quality assurance across multiple sectors and continues to guide manufacturers toward certification excellence and risk-based quality management.
