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Ted Mooney, P.E. RET
Pine Beach, NJ

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CADMIUM REPLACEMENT TECHNOLOGY: ZnCo for Cadmium

HELLO,

PLEASE CLARIFY WHETHER ZN-CO ALLOY COATINGS CAN BE USED AS AN ALTERNATIVE FOR CADMIUM COATINGS AT ELEVATED TEMPERATURE CONDITIONS OF AROUND 700 F TO 1000 F ON FASTENERS.ESPECIALLY.

IF SO PLEASE LET ME KNOW THE DETAILS OF THE TECHNOLOGY.

WITH REGARDS,

HARISH.S.N.
- HYDERABAD, India

Just an observation but cadmium should not be used over about 500 F as it melts.

Martin Trigg-Hogarth
surface treatment shop - Stroud, Glos, England

Dear Harish,

Neither should any Zinc platings serve particularly not Zinc cobalt as it will rupture. You may try Zinc Nickel to the exact temperature you will require in service instead of aiming high just for the fun of it.

all the best.

Khozem Vahaanwala
Saify Ind

Bengaluru, Karnataka, India

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