Specification of Railways R50/R65:. Second Quality-Railway used. Rail steel No. 1., standard section tee rails, original weight 50 Pound per yard, over heavier 120.50-meter long.. Steel No.2. cropped rail ends standard section original weight 50 pound per yard And over 12.50-meter long.. (28B) (28C) rail steel no.2T-rail ends standard section-original Weight 50 pounds per yard and over 12.50 pound per yard and over 12.50 meters rail, steelNo.3, standard section fee, gender, and /or guard rails, free from frog and switch rails not cut apart, and contain no manganese cast welds or attachment or any except angle bar also rails, not found and without radiation and explosive substance..1.0M(1.0-1.5M(Rail ferrous.(R50/R65) chemical composition shall be according to .1.0M(1.0-1.5M(Rail ferrous.(R50/R65) chemical composition shall be according to R65 gost 8165.75 weight 64.72KG / meter - C = 0.54%-0.82%-Sl=0.18-0.40%-MN=0.60-1.05%-S=0.05%-max-P=0.035% as 0.01 mix of mass share R50 gost 7173.75 weight 51.67KG / meter-C=0.54%-0.82%-Sl=0.18-0.40%MN=0.60-1.05%-S=0.05%-max-P=0.035% as 0.01 mix of mass share 3,650,1110 tone 1 meter 11040200003,939,459 1.20 meter 11040200003,410,586 1.5 meter 11040200003,501,847 1.80 meter 11040200002,960,338 2 meter 11040200002,150280 2.80 meter 110402000019,612,620 MT