When the pressure is on—literally—you can’t afford to cut corners with welding. Whether you’re building a pressure vessel, installing industrial piping, or performing repairs on critical systems, having ASME certified welders on your job isn’t just a “nice to have”—it’s a non-negotiable for quality, safety, and compliance.
At DePue Mechanical, our ASME-certified welders bring a level of precision, accountability, and documentation that protects your project from rework, delays, and compliance risks.
Here’s why ASME certification should matter to you.
1. ASME Section IX Certification: What It Means for You
The American Society of Mechanical Engineers (ASME) sets the gold standard for pressure-containing components through its Section IX code, which governs welding and brazing qualifications. When a welder is certified to ASME Section IX, it means they’ve passed rigorous testing procedures that prove their ability to perform high-quality welds in specific positions, materials, and procedures.
For you, this translates to:
- Fewer weld failures
- Stronger joints
- Confidence your system will pass inspection—every time
2. Welding Procedure Specifications (WPS) & PQR: Your Documentation Shield
Behind every certified weld is a Welding Procedure Specification (WPS) and a Procedure Qualification Record (PQR). These documents are the backbone of ASME code compliance.
At DePue Mechanical, we don’t just create these documents—we maintain internal records for every ASME weld performed, and we have a dedicated team member tracking them for full transparency. This level of documentation:
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Protects you during audits and inspections
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Keeps your project compliant with OSHA, API, and NBIC requirements
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Helps ensure every weld is repeatable, traceable, and backed by procedure
3. Requalification & Continuity: Welding Performance You Can Trust
Per ASME Section IX, certified welders must maintain continuity every 6 months by performing welds using qualified procedures. If they lapse, they must requalify. At DePue Mechanical, we proactively track this internally, so you never have to worry about expired credentials slowing your job down.
4. Certified Welding Inspectors (CWI) & Non-Destructive Testing (NDE)
ASME-certified welds don’t just look good—they’re inspected, tested, and verified.
We work with Certified Welding Inspectors (CWI) and apply Non-Destructive Examination (NDE) techniques—such as visual inspection, liquid penetrant, magnetic particle, and radiographic testing—to ensure each weld is sound and compliant.
This reduces the risk of:
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Costly repairs
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Shutdowns
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Liability issues
5. Code Welding for Pressure Vessels, Boilers, and Piping Systems
From boiler installations to high-pressure piping systems, ASME-certified welders are essential. DePue Mechanical is experienced in delivering code-compliant welding in facilities across Illinois and beyond, with special expertise in:
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Food & beverage
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Chemical processing
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Manufacturing
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Power generation
When the job requires code-level precision, we show up ready to pass inspection the first time.
6. Internal Weld Tracking & Quality Assurance
One thing that sets us apart? We don’t outsource accountability. Every ASME-certified weld we perform is tracked, logged, and documented by our in-house team. This means:
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You get peace of mind
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Your QA/QC process runs smoother
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Your documentation is rock-solid and easy to access
FAQs
What’s the difference between qualified and certified welders?
“Qualified” means a welder has passed a test. “Certified” means that test has been formally recorded and tracked under a recognized standard like ASME Section IX.
How often do welders need to requalify under ASME?
Every 6 months, unless continuity is maintained through recorded welds.
Why is a WPS important?
It ensures repeatability, compliance, and quality for each weld performed under specific conditions.
Don’t Take Chances with Compliance Welding
Welding failures can shut down production, damage equipment, or worse. Bring in a team with proven experience, deep ASME knowledge, and an internal system built for accuracy and accountability.
✅ Request a Quote from DePue Mechanical
Let’s make sure your next project is compliant, safe, and built to last.
Every weld we make is tracked, documented, and built to pass inspection the first time.
