Seek advice on drawing annotations
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What does “Q-235\16\20” mean in the material column of the drawing?
I think it refers to the materials Q235, 16Mn, and steel grade 20
This device is similar to a cylinder plus flange; no classification for the materials 235/16Mn/20 could be found in the drawings. There is only one material column in the entire set of drawings, and that is Q235/16/20. Or can this device be made using any of these three materials?
In my opinion, the intention behind this specification is that Q-235 steel, 16Mn steel, and 20# steel can all be used
Will it be labeled like this? ? ? Is that how the three materials are written?
It is Q-235 steel, 16Mn steel, and 20# steel