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  1. foggie

    Chinese steel tube

    I have the strength numbers, too. Q195 and Q235 are 195 and 235MPa yields. 20 (>245MPa yield)is supposed to be comparable to 1020 (350MPa yield), and is used in seamless tubing. Q235 will work harden rather than bend, and is ng for shaping tubes. For the chinese steels I have information on...
  2. foggie

    Chinese steel tube

    Anyone experience with type Q195, Q235 and 20 in square and round tube? or ST12 for flat stock? I'm curious about yield strengths...

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