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Jeff Luckey wrote:
Does Columbia now carry 321 stainless. IIRC, I pinged them about a year ago and they did not carry 321 stainless…
I also bought bends from Columbia. Their service and delivery was excellent.
I don't see any mention of 321, but I wasn't really concerned about it. Given the diameter of tube we have to use for exhaust flow, and the thickness we need to contain the exhaust pulse, and the corrosion resistance characteristics of the alloys at elevated temperatures, I couldn't see enough of a difference to stress over.
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*From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] *On Behalf Of *kevin lane
*Sent:* Monday, October 18, 2010 22:03
*To:* Rotary motors in aircraft
*Subject:* [FlyRotary] header parts source
I have been happy with Columbia mandrel bending. they make their own parts, family run, and significantly cheaper than burns. http://www.mandrel-bends.com/catalog/
last week I finally got the v-band, another 90°, a flex joint, and muffler added to this header.
KevinLane Carpentry
www.KevinLaneCarpentry.com <http://www.KevinLaneCarpentry.com>
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