GB carbon and low alloy steel--GBT700 Q235B carbon
2021-9-7u2002·u2002Q235B material is a Chinese carbon steel grade under GB/T 700 standard. There are also three quality grades under Q235 series steel: Q235A, Q235C and Q235D. Q235B GB carbon steel plates shall be done low temperature impacting test under +20℃. Normally as-rolled and control-rolled is ok for rolling Q235B steel, normalized is suggested when the steel plates are heavy plate thickness.
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