The National Board R Stamp is one of the most recognized credentials for organizations performing qualifying repairs and alterations to pressure-retaining equipment. It demonstrates that AXLE maintains a documented quality system and performs covered work in accordance with the National Board Inspection Code (NBIC).

What Is the R Stamp?

Many industrial facilities operate equipment that contains pressure—boilers, pressure vessels, heat exchangers, piping systems, and other critical process equipment. Repairs to this equipment often require more than skilled welding; they require documented procedures, quality controls, and compliance with recognized industry standards.

The National Board "R" Stamp identifies organizations that have been authorized to perform qualifying repairs and alterations to pressure-retaining equipment under the National Board Inspection Code. For facility operators, it provides confidence that covered work is performed within an established quality program designed to meet applicable code requirements.

Why It Matters

Protecting More Than Equipment

Industrial pressure equipment operates under demanding conditions where quality, documentation, and proper repair procedures are critical.

Choosing an R Stamp organization helps provide confidence that qualifying repairs are performed using established quality controls rather than relying solely on individual workmanship.

What Our Certification Represents

Documented Quality System

Every qualifying repair follows documented procedures, inspection requirements, and quality controls.

Code-Based Repair Practices

Covered work is performed in accordance with the National Board Inspection Code (NBIC), helping ensure repairs meet recognized industry requirements.

Traceability & Documentation

Applicable repairs are supported by the documentation required under our quality program, providing clear records for owners and inspectors.

Qualified Personnel

Our quality system defines how qualifying pressure equipment repairs are planned, executed, inspected, and documented.

What Types of Equipment May Require an R Stamp?

Examples include qualifying repairs or alterations involving:

• Industrial boilers
• Pressure vessels
• Heat exchangers
• Pressure-retaining components
• Certain code-stamped process equipment

The need for an R Stamp depends on the specific equipment, jurisdiction, and scope of work.

If you're unsure whether your repair requires an R-Stamp, our team can help evaluate your project.

Our Process

Frequently Asked Questions

Does every pressure vessel repair require an R Stamp?

Not necessarily.

Requirements depend on the equipment, applicable codes, jurisdictional requirements, and the scope of the repair. We can help determine whether an R Stamp repair is appropriate for your project.

Is the R Stamp the same as ASME certification?

No.

The National Board R Stamp specifically relates to qualifying repairs and alterations to pressure-retaining equipment under the National Board Inspection Code. It is different from ASME Code construction certifications.

Can AXLE repair non-pressure equipment?

Absolutely.

While our R Stamp supports qualifying pressure equipment repairs, we also perform a broad range of industrial fabrication, structural steel, equipment modifications, shutdown support, mechanical repairs, and field welding services.

How do I know if my project falls within the scope of the R Stamp?

Our team can review your equipment, repair requirements, and applicable codes to help determine whether the work falls within the scope of our authorization.

Industries We Support

🏭 Sugar Mills & Refineries

🔥 Boiler Systems

⚙️ Process Manufacturing

🌾 Agricultural Processing

🏗 Heavy Industrial Facilities

Need to Discuss a Pressure Equipment Repair?

Whether you're planning a scheduled outage or evaluating an unexpected repair, our team can help determine the appropriate repair approach and whether your project requires work performed under our R Stamp authorization.