Throat thickness welded, No approval range t t 30mm t 5mm 3 Thickness Throat Thickness Test Piece Thickness (t) Fillet welds Qualified by butt welds:- The throat thickness approval range is based on the deposit thickness and the plate.

  • Section J2.2a wherein the effective throat thickness is considered to be equal to the weld size for 3/8-in. And smaller welds, and equal to the effective throat thick-ness plus 0.11 in. For fillet weld sizes over 3/8 in.” For example, assume a weld throat of 0.45 in (11 mm) is required. A standard 5/8 in (16 mm) fillet weld will achieve this.
  • Throat Size 1/8 75o 3/8 h = plate thickness = weld size Butt h = 0.707. plate thickness 0.707. weld size 1/4 Fillet. 5 Fatigue Strength Cycles of Loading Fatigue Strength 1 1000 1,000,000 Endurance Limit Static Tensile Strength Low Cycle.

This article provides notes on welding gauge.

After welding the welds are inspected for size and shape by means of welding gauges. These are metal plates or high gauge-sheets with cuts corresponding to the cross-section of a given size and type of weld.


Another gauge, simple in design, is shown in Fig. to measure the throat thickness of a fillet weld. The throat thickness readings are shown on the curving line of the gauge. The gauge is held as shown in the figure until a point of curve in the gauges touches the centre of the face of the weld and the curve of the gauge also rests against two sides making the Tee-joint.

Read Also: 7 Most Common Defects In Welding and its causes

At B, throat thickness of the fillet weld is 5-6 mm which is a point on the gauge touching the centre of the face of the weld.

On each gauge numerals are punched indicating the thickness of the work in millimeters for butt welds, and the leg in millimeters for fillet welds. As such, it is difficult to keep the size of a weld within accurate limits—each gauge has cuts for the maximum and minimum size of a given weld. A set of gauges for the most commonly used weld sizes (6-14 mm) is clamped by a ring or a bolt (Fig. ). Smartwi international a/s usb devices driver download windows 10.

Read Also: Brazing vs Welding- Difference Between Brazing and Welding

Types of Welding gauges :

  • Welding Inspection Ruler WG 01
  • Universal welding gauge WG 2
  • Welding gauge WG3
  • Digital welding gage WG3 Digital
  • HI-LO Welding Gage (WG4)
  • Economy Single Purpose Hi-Lo Welding Gage
  • Welding gage WG5
  • Automatic Weld Size Weld Gauge WG7
  • Bridge Cam Gage
  • Adjustable Fillet Weld Gage WG8
  • Pipe Pit Gage WG10
  • Skew-T Fillet Weld Gauge WG12
  • “V-WAC” Single Weld Gage
  • Pocket Bridge Cam Gauge

Weld Throat Thickness And Leg Length


Weld Throat Thickness Gauge

Related posts:

6817.info – 2018