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HelicopterOff Topics › Weld test for lead in imported Chinese steel
06-18-2017 03:53 PM  4 months agoPost 1
MPA

rrElite Veteran

Australia

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A tip I picked up from a Welding old timer when I got some imported steel and it has this nasty yellow stain around the weld, took more power to MIG weld and distorted badly.

Lead tainted Chinese steel.

Watch at YouTube

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06-25-2017 04:05 AM  3 months agoPost 2
TMoore

rrMaster

Cookeville, TN

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What grade of steel did you buy? There are still lots of 12L14 and 12L15 variants in structural shapes.

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06-26-2017 04:45 AM  3 months agoPost 3
ferincr

rrVeteran

sometimes in Costa Rica sometimes in the US

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What grade of steel did you buy? There are still lots of 12L14 and 12L15 variants in structural shapes.
I thought the same thing, first thing it came to my mind when I saw the video was 12L14 but since I'm a "kindergarten machinist aficionado" I thought I should keep my mouth shut

Intelligence chases me, but I'm a lot faster! Fernando

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06-27-2017 01:28 AM  3 months agoPost 4
TMoore

rrMaster

Cookeville, TN

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The Chinese are notorious for producing crap steel. A36 is a common structural material and it should have very little lead in it unlike Ledloy or its variants.

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