Q235A steel plate

Q235 carbon steel contains four different grades as Q235A,Q235B,Q235C and Q235D.The big difference among these four carbon steel grades is the impacting temperature.
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Q235C steel plate

Q235C mild steel plate is mainly used for building steel structurals.The best equivalent steel grade is S235J0 under steel specification EN 10025-2.Q235C shall be done low temperature impacting test under zero centigrade.
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20# hot rolled steel sheet

No. 20 round steel belongs to high-quality low-carbon carbon steel, cold-extruded, carburized and hardened steel.
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Q235D steel plate

GB/T700 Q235D shall be done low temperature impacting test under minus 20 centigrade.Normally As-rolled and Control-rolled is ok for rolling Q235D,normalized is suggested when the steel plates are heavy thickness.
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9SiCr hot rolled steel round bars

9 sicr steel is low alloy cutting steel, but also often make cold work mould parts, the effect is very good. It than chrome steel (Cr2 or 9 Cr2) have higher hardenability and hardenability and have high tempering stability. The steel quotations from the former Soviet union as early as 9 xc, once known as 9 crsi steel. Composition and performance with 9 xc are exactly the same.
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