Weld Analysis with Handheld XRFWeld Analysis with Handheld XRF

Analyzing Welding Rods

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Proper Testing

The proper way to analyze a flux coated rod:

– make a weld puddle / spot with the rod;

– then place the analyzer directly on the weld spot to test.

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Using the Welding Library

Welding Library – Key Concepts

– The DELTA comes pre-loaded with a basic welding library

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Welding Grade Chemistry

Welding grades often have slightly higher concentrations of the alloying material.

Grade Name Cr Mn Ni316 16 - 18 0 -2 10 - 14ER316 (Weld) 18 - 20 1 - 2.5 11 - 14321 17 - 19 0 - 2 8 - 10.5ER321 (Weld) 18.5 - 20.5 1 - 2.5 9 - 10.5

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Spot Collimation

Narrows the X-ray beam to a smaller spot size

Useful for targeting a narrow weld;

Allows user to analyze the weld, the base material, or the heat affected zone.

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See the test area

Selectively target a single material

Hit brass only on the first shot

Camera Collimator

Collimated beam spotUncollimated beam spot

Stainless Steel

BrassOlympus Scientific Solutions Americas

Simulating a weld with Brass between Stainless Steel Brass represents the weld

Results for Brass between Stainless

Uncollimated beam mixes stainless into result

Collimated beam deliverscorrect grade ID

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The DELTA Weld Mask reduces the analysis area without collimation

Not as convenient as camera with collimator

The DELTA has an optional Weld Mask

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Thank you!

For more information on DELTA Handheld XRF Analyzers, please visit:http://www.olympus-ims.com/en/xrf-xrd/delta-handheld/delta-alloy/