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Question about a weld inspection in Mobile that changed my mind on root passes
An old hand from the union hall in Mobile told me my root passes on 2-inch schedule 80 were 'too hot and fast, you're just making a pretty bead over a cold crack.' I started using a lower amperage and a tighter arc gap, and the difference in the x-ray results was clear. Do you think a slower, cooler root is always better for high-pressure pipe, or are there times to run it hot?
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bennett.james14d ago
My old foreman in Baton Rouge made me run a 7018 root at 85 amps on 3-inch pipe. The slower fill just held up better under pressure.
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