TB/T 1979 railway vehicles used steel

TB/T 1979 corrosion-resistant steel series for railway vehicles
TB/T 1979 railway vehicles used steel : 05CuPCrNi, 09CuPCrNi, Q400NQR1, Q450NQR1, Q500NQR1, Q550NQR1
TB/T 1979 Corrosion-resistant steel series for railway vehicles is mainly used for the manufacture of high-strength atmospheric corrosion-resistant hot-rolled steel plates for railway freight cars, as well as steel plates and strips formed by longitudinal cutting.

TB/T 1979 railway vehicles used steel size

Material	Specification /mm
Material	Sheet and coil	Plate
09CuPCrNi	1.5-19×800-1600	6-50×1600-3250
Q400NQR1	1.5-19×800-1600	6-50×1600-3250
Q450NQR1	1.5-19×800-1600	6-50×1600-3250
Q500NQR1	1.5-19×800-1600	6-50×1600-3250
Q550NQR1	1.5-19×800-1600	6-50×1600-3250

Product analysis

Material	Composition/%
Material	C	Si	Mn	P	S	Cr	Cu	Ni
Q400NQR1	≤0.12	≤0.75	≤1.10	≤0.025	≤0.008	0.30-1.25	0.20-0.55	0.12-0.65
Q450NQR1	≤0.12	≤0.75	≤1.50	≤0.025	≤0.008	0.30-1.25	0.20-0.55	0.12-0.65
Q500NQR1	≤0.12	≤0.75	≤2.0	≤0.025	≤0.008	0.30-1.25	0.20-0.55	0.12-0.65
Q550NQR1	≤0.16	≤0.75	≤2.0	≤0.025	≤0.008	0.30-1.25	0.20-0.55	0.12-0.65

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