Coupons?

by Bill A
(Indina)

Why do they call a weld test coupon, a coupon?

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that one really threw me a curve too when i was learning to weld. especially in the south where the emphasis is on the first syllable.

dictionary.com has this to say..


Coupon in Metallurgy ... a sample of metal or metalwork submitted to a customer or testing agency for approval.

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