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See Chinese contents: YB/T 4146-2016 YB/T 4146-2016: High-carbon chromium bearing steel seamless steel tubes
This standard specifies the order content, size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of high carbon-chromium bearing steel seamless steel tube. This standard applies to the hot-rolled and cold-drawn (rolling) high-carbon chromium bearing steel seamless steel tube (hereinafter referred to as steel tube) which is used to manufacture the rolling bearing parts and other mechanical parts.
