GTAW / TIG WELDING PROCESS — GAS TUNGSTEN ARC WELDING

CWB W47.1 Division 2
Structural Welding

TSBC Class A
Regulated Pressure Work

Approved WPS
QA/QC Documentation

GTAW / TIG welding in Vancouver is used for applications requiring precise heat control, clean weld appearance and high-quality weld integrity. Using non-consumable tungsten electrode and inert shielding gas, GTAW delivers excellent control for stainless steel, carbon steel, aluminum and specialty alloy work across Vancouver and the Lower Mainland.

At CPW Contracting, GTAW / TIG welding is performed by qualified welders under approved Welding Procedure Specifications (WPS), with QA/QC documentation available for project-specific requirements. Regulated pressure work is completed under applicable TSBC requirements, project specifications and inspection requirements where applicable.

GTAW / TIG WELDING CAPABILITIES

CPW applies GTAW for shop and field scopes where weld quality, access control, root-pass precision or heat input control are critical to the finished work.

MATERIALS & APPLICATIONS

▸ Stainless steel tanks, piping & fittings

▸ Carbon steel pipe root passes

▸ Precision tube and plate work

▸ Specialty alloy repair and fabrication

FIELD & SHOP SUPPORT

▸ Shop fabrication in New Westminster

▸ Repair and modification work

▸ Field fit-up, tie-ins and repairs

▸ Controlled heat input welding

QUALITY & COMPLIANCE

▸Qualified welders under approved WPS

▸ ASME IX, CSA W59 where applicable

▸ Project-specific QA/QC documentation

▸ NDT coordination when required

PROCESS DETAILS & ADVANTAGES

Precise Heat Control

Ideal for stainless steel, aluminum and applications requiring controlled heat input.

Clean Weld Appearance

Produces clean, high-quality weld profiles with low spatter and strong visual finish.

Root Pass Control

Excellent for pipe root passes where penetration, fusion and fit-up control matter.

Stainless Steel Capability

Well-suited for SS 304 and SS 316 piping, tanks, fittings and equipment components.

Low-Distortion Welding

Supports precision fabrication where excessive heat input could affect alignment or finish.

Project-Specific Compliance

Performed under approved WPS and documented QA/QC controls when required.

WHERE WE APPLY GTAW / TIG IN METRO VANCOUVER

Commercial & Industrial

▸ Stainless steel piping and fittings

▸ Mechanical room piping and tie-ins

▸ Aluminum fabrication and repairs

▸ Equipment guards and specialty components

▸ Industrial plant maintenance support

Regulated & Specialty Scopes

▸ Pressure pipe root passes where applicable

▸ Process piping support

▸ Controlled-environment welds

▸ Repair and modification of stainless assemblies

▸ QA/QC-documented welding scopes

Technical positioning: GTAW is selected where precision, heat control, root quality or final weld appearance are more important than production speed. CPW can support both shop fabrication and site welding scopes requiring WPS alignment, project-specific inspection and documented quality control.

NEED GTAW / TIG WELDING SUPPORT IN METRO VANCOUVER?