Contour Enthusiasts Group Archives Forums Modifications Duratec Performance weapon r headers install

Note:
304 and 304L are both slightly magnetic, which can be relieved after heating, so once they been run on a car above 700�°C they'll lose magnetism.
The 304L is lower carbon 0.03% vs 0.15% for regular 304.
The lower carbon in the 304L is better for welding (due to a lower precipitation of carbides).
304L is softer (Brinell 140) than 304 (Brinell 150) by a smidge and also has a lower tensile stregth of 80ksi vs 85ksi.