Fugly Posted November 9, 2017 Posted November 9, 2017 Hi all, Am looking at buying some stainless bends to make a header manifold but am concerned about cutting the stuff. What grade of stainless is preferred (304?) and what do you use to cut it? Quote
no class Posted November 9, 2017 Posted November 9, 2017 304 is good..... 316.... 321 is best . Cut with thin cut off wheel or if you have a good bandsaw with coolant . Quote
homer Posted November 9, 2017 Posted November 9, 2017 304 is cheapest one. 316 has some Mo in it so it is acid proof. 321 best for high heat but dont like fast cooling (used for boiler applications). For the headers I would take 304 or 316 those are easily available. 321 is way too fancy. Quote
nlovien Posted November 9, 2017 Posted November 9, 2017 I use one of these - aldi's had a run on them - this has paid for itself many times over just in cut off discs - you get much more life out of them versus free hand cutting, i.e. keep the pressure off the disc get it right and you can achieve end to end welds with TIG without filler https://www.amazon.co.uk/105422-115MM-Quality-Electric-Grinder/dp/B00L903ROQ/ref=sr_1_2?s=diy&ie=UTF8&qid=1510244966&sr=1-2&keywords=angle+grinder+stand 1 Quote
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