Sales BS550MCK4,BS550MCK4 steel plate supplier,BS550MCK4 steel sheet price,BS550MCK4 steel plate

BS550MCK4 hot rolling carbon low-alloy high strength steel design by reducing the carbon equivalent of the steel and welding crack sensitivity index, and use of advanced smelting equipment and technology to strengthen the collection of micro-alloying technology, good weldability.

Good Weldability --- carbon equivalent(Ceq) and weld crack sensitivity index(Pcm)

Grade	Performance carbon content C（%）	Performance carbon content Ceq	Welding sensitivity index performance Pcm
BS550MCK4	≤0.08	≤0.49	≤0.22

Ceq = C + Mn/6 (Cu + Ni)/15 + (Cr + Mo + V)/5
Pcm =C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B

BS550MCK4 steel Mechanical Properties

Grade	Thickness (mm)	Yield Strength Re(MPa)	tensile strength Rm(MPa)	Elongation A5（%）	Shock Value IE (J)
BS550MCK4	6-12	560-645	650-740	16-26	120-280

BS550MCK4 steels are featured :
1 . Good formability. All grades of BS steel can be cold formed.
2 . Excellent welding performance. The steels have low welding crack sensitivity and the properties of welding joint are good.
3 . Good toughness at low temperature.

BS550MCK4 Delivery status: BS series adopt high-strength steel-rolled (TMCP) delivery.

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