Charpy impact of ASTM A216 grade WCC
Charpy impact of ASTM A216 grade WCC
(OP)
any thoughts if you have to quench and temper WCC to achieve a charpy of 20 ft/lb at -22F, or is as cast ok?
Thanks
Thanks
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Charpy impact of ASTM A216 grade WCC
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RE: Charpy impact of ASTM A216 grade WCC
I would say that you need to have a quenched and tempered heat treatment as a minimum, with fine grain practice, to safely meet your requirement of 20 ft-lbs at -22 deg F.
SA 216 Grade WCC has a specified carbon content of 0.25% Max. In looking at a graph of CVN versus carbon content for wrought, plain carbon steels, 20 ft-lbs correlates to roughly -25 deg F (very rough approximation). This is too close to call, and in dealing with an as-cast material (no heat treatment) versus a wrought material, I would put your chances for the as-cast Grade WCC meeting 20 ft-lbs at -22 deg F at or below 50-50.
RE: Charpy impact of ASTM A216 grade WCC
RE: Charpy impact of ASTM A216 grade WCC