British Rail Standard

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British Rail Standard

Update : 2025-05-27

Specification Of BS Rails

Size	Head (mm)	Height (mm)	Base (mm)	Web (mm)	Nominal weight (kg/m)	Material	Length （m）
BS113A Rail	69.85	158.75	139.7	20	56.398	900A	8-25
BS100A Rail	69.85	152.4	133.35	15.08	50.182	900A	8-25
BS90A Rail	66.67	142.88	127	13.89	45.099	900A	8-25
BS80A Rail	63.5	133.35	117.47	13.1	39.761	900A	8-25
BS75A Rail	61.91	128.59	114.3	12.7	37.455	900A	8-25
BS70A Rail	60.32	123.82	111.12	12.3	34.807	900A	8-25
BS60A Rail	57.15	114.3	109.54	11.11	30.618	900A	6-18
BS80R Rail	63.5	133.85	127	13.49	39.374	900A	8-25
BS75R Rail	61.91	128.59	122.24	13.1	37.041	900A	8-25
BS60R Rail	57.15	114.3	109.54	11.11	29.822	700	6-18
BS50 O Rail	52.39	100.01	100.01	10.32	24.833	700	6-18

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