JB/T 15617-2026Steel cross wedge rollings - Tolerance and machining allowance (English PDF)

JB/T 15617-2026 is the English-translated version of 钢质楔横轧件公差及机械加工余量.

This document deals with steel cross wedge rollings, which are blanks and parts formed by cross wedge rolling, and it provides for their tolerances and machining allowances. It is aimed at defining how closely such steel parts are to be made and how much stock is left for later machining.

Forging and rolling plants, machining shops that finish these parts, designers who draw the blanks and purchasers who order them can use it when agreeing drawings and supply terms. It is a voluntary standard approved by the Ministry of Industry and Information Technology. It was issued on 1 June 2026 and becomes effective on 1 December 2026. It is a new standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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