Q345NQR3 steel equivalent

TB/T 1979 Q345NQR3 steel specification
Material: Q345NQR3 grade
Standard: TB/T 1979-2014
Equivalent: hot rolled 09CuPTiRE-B
Category: atmospheric corrosion resisting steel for railway rolling stock
Mechanical properties for Q345NQR3 hot rolled steel

Yield strength (≥Mpa)	Tensile strength (≥Mpa)	Elongation % ≥
345	480	24

Q345NQR3 chemical composition(heat analysis, %)

C max	Si	Mn	P	S max	Cu	Ti max	RE
0.12	0.20-0.50	0.25-0.70	0.060-0.12	0.020	0.25-0.50	0.030	0.010-0.040

As a leading supplier of atmospheric corrosion resisting steel Q345NQR3, BBN steel can supply Q345NQR3 steel sheets and Q345NQR3 plates with large stock and quantity. Our Q345NQR3 steel plates shall be done low temperature impacting test at -40 °C with impact energy 27J for plate thickness equal or above 12mm.

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