What is the Q345NQR2 steel?

Q345NQR2 steel grade is designed in new standard of TB/T 1979-2014. It is equivalent to 09CuPCrNi-A grade in old standard of TB/T 1979-2003. Hot rolled steel Q345NQR2 plate and sheet should be delivered in hot rolled or hot rolled annealing condition.
Property: Q345NQR2 steel has good atmoSPHEric corrosion resistance. This material is suitable for railway rolling stock. We can supply TB/T 1979 Q345NQR2 steel plate, sheets and steel sections.

Q345NQR2 steel chemical composition (melting analysis, %)

C max	Si	Mn	P	S max	Cu	Cr	Ni
0.12	0.25-0.75	0.20-0.50	0.060-0.12	0.020	0.25–0.50	0.30-1.25	0.12-0.65

Q345NQR2 steel mechanical properties

Grade	Yield Strength (MPa) min.	Tensile Strength (MPa) min.	Elongation min. %
Q345NQR2	345	480	24

The specifications of TB/T 1979 Q345NQR2 steel plates available are: thickness 1.5-100mm, width 1500-4200mm, length 4000-17000mm. We can also provide cutting, welding, drilling, grinding and turning services as required. For more information of Q345NQR2 steel price and stock, welcome to contact us.

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