HeavyOlds
January 29, 2017
Here is a close up of the head flange welds. The discoloration on the pipe is what looks like clear flux that comes off with your fingernail. They must have used a 309L filler wire with a flux core. Those are actually 3/8” head flanges, not 7/16” as advertised. One thing I have found with 7/16” head flanges is that you need to go up to the next length bolt which is more difficult to install.
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Prince George , British Columbia , Canada
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