Fillet and combination welding gauge set — for measuring fillet leg size, weld reinforcement, bevel angle, and undercut to AWS D1.1 and ISO 5817 standards.
A welding gauge is a precision hand instrument used by weld inspectors and QC engineers to measure critical weld geometry parameters — fillet leg size, weld throat thickness, butt weld reinforcement, undercut depth, bevel preparation angle, and root gap — to verify that completed welds conform to the design specification and the applicable welding quality standard. Welding gauges are compact stainless steel instruments that allow measurements to be taken directly on the weld without laboratory equipment or dimensional calculation.
Multi Trade Combines stocks fillet weld gauges and combination weld gauge sets as part of our Measuring Tools range, serving welding inspection teams, quality assurance departments, and third-party inspection agencies operating on fabrication projects across Northeast India. Welding gauge sets from our counter are used on structural steel fabrication jobs, pipeline construction, and process plant construction where weld dimensional compliance is a contractual and regulatory requirement.
Quality assurance engineers and welding inspectors at structural steel fabrication yards in Guwahati use welding gauges on every production batch of welded structural members. AWS D1.1 prequalified joint details specify minimum fillet weld sizes for each plate thickness and loading condition; fabrication contract specifications require documentary inspection records showing gauge measurements. Third-party inspection agencies operating on NHAI highway structures, railway bridges, and industrial building steelwork in Assam and Arunachal Pradesh carry weld gauges as standard inspection kit.
Pipeline QC inspectors on oil and gas pipeline projects in Assam — supply lines from ONGC's Jorhat and Sivasagar fields — use weld gauges to verify the root gap and bevel angle before welding, and butt weld reinforcement and undercut after welding. API 1104 pipeline welding standards have strict dimensional tolerances that are checked with weld gauges at every girth weld.
Pressure vessel fabricators and ASME-certified welding inspection departments use weld gauges for ASME Section IX weld qualification testing, where dimensional conformance of the test joint is a qualification requirement. Fabricators in Guwahati's chemical plant supply chain encounter these requirements on reactors, heat exchangers, and storage vessel nozzle welds.
| Category | Measuring Tools |
|---|---|
| Key specs | Fillet / weld joint gauge set |
| Gauge types | Fillet gauge, combination weld gauge, V-WAC type |
| Parameters | Fillet leg, throat, reinforcement, undercut, bevel angle |
| Material | Stainless steel |
| Standards covered | AWS D1.1 / ISO 5817 weld inspection |
| Availability | In stock — price on request |
A fillet weld gauge measures the leg length and throat thickness of fillet welds, checking that the weld size meets the specification requirement. A combination weld gauge measures fillet leg length, weld reinforcement (excess weld metal height above flush on a butt weld), bevel angle (weld joint preparation angle), root gap, and depth of undercut — giving the inspector five critical weld geometry parameters in one compact instrument. AWS D1.1 structural welding and ISO 5817 weld quality standards both specify dimensional limits for each of these parameters; the weld gauge is the tool used to verify compliance during inspection.
A structural weld inspector checks: fillet weld leg size (must meet or exceed the design drawing specification), butt weld reinforcement height (must not exceed the AWS D1.1 or EN limit, typically 3 mm), bevel preparation angle before welding (must match the Welding Procedure Specification), root face width, root gap (must be within WPS tolerance for the weld process), and undercut depth at the weld toe (typically limited to 0.8 mm for structural welds). These measurements are made with a combination weld gauge during production inspection and final inspection before weld release.