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Content DescriptionISO 5003:2016 specifies the terms and definitions, information to be supplied by the purchaser, tolerances for dimensions, length, technical requirements, inspection rules, identification, certification, and a quality assurance system for as-rolled and heat-treated steel rails for railways. ISO 5003:2016 specifies flat bottom (vignole) railway rails with linear mass of 43 kg/m and above, for conventional and high-speed railway track usage. There are 19 pearlitic steel grades specified, covering a 200 HBW to 400 HBW hardness range and including "non-heat-treated" carbon manganese steels, "non-heat-treated" alloy steels, "heat-treated" carbon manganese, and "heat-treated" low alloy steels. About ISOISO, the International Organization for Standardization, brings global experts together to agree on the best way of doing things – for anything from making a product to managing a process. As one of the oldest non-governmental international organizations, ISO has enabled trade and cooperation between people and companies all over the world since 1946. The International Standards published by ISO serve to make lives easier, safer and better. |
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