What is the 450NQR1 steel?

Jul 02, 2021

TB/T 1979 Q450NQR1 steel is a kind of atmospheric corrosion resisting steel for railway rolling stock. This steel is mainly used in built railway vehicles,trains, vessel containers and so on. Q450NQR1 steel plate owned the minimum yield strength at 450Mpa and tensile strength Min.550Mpa.

Q450NQR1 steel mechanical properties

Thickness (mm)	Yield strength (≥Mpa)	Tensile strength (Mpa)	Elongation % ≥
T≤6	450	550	22
6			20
14			19

Chemical composition for Q450NQR1 steel (heat analysis, max%)

C	Si	Mn	P	S	Cu	Cr	Ni
0.12	0.75	1.5	0.025	0.008	0.20-0.55	0.30-1.25	0.12-0.65

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