ISO 4954:2021 冷镦和冷挤压用钢

标准编号：ISO 4954:2021

中文名称：冷镦和冷挤压用钢

英文名称：Steels for cold heading and cold extruding

发布日期：2021-07

标准范围

本文件规定了用于冷镦或冷挤压并作为线材、线材或棒材交付的非合金钢和合金钢的要求。它还包含以下方面的具体要求:-？直径为2毫米至100毫米的非热处理用钢（见附录A）；-？直径为2毫米至100毫米的表面硬化钢（见附录B）；-？淬火和回火用钢，包括直径为2毫米至100毫米的硼合金钢（见表C.3）（见附录C）；-？直径为0.8？mm至50？mm（奥氏体钢）、25？mm（铁素体钢）和100？mm（马氏体钢）的不锈钢（见附录D）。本文件（除附录A外）适用于冷空气的特性-经过后续热处理的头部或冷挤压零件。由于冷镦或冷挤压以及随后未经热处理的零件的性能在很大程度上取决于应用的冷镦或冷挤压条件，因此，如有必要，这些性能取决于买方和零件制造商之间的协议。

This document specifies requirements for non-alloy and alloy steels that are intended for cold heading or cold extruding and are delivered as wire rods, wire or bars. It also contains specific requirements for:—    steels not intended for heat treatment, with diameters from 2 mm to 100 mm (see Annex A);—    case-hardening steels with diameters from 2 mm to 100 mm (see Annex B);—    steels for quenching and tempering, including boron alloyed steels (see Table C.3), with diameters from 2 mm to 100 mm (see Annex C);—    stainless steels with diameters of 0,8 mm up to 50 mm for austenitic steels, up to 25 mm for ferritic steels and up to 100 mm for martensitic steels (see Annex D).This document (except Annex A) is applicable to the properties of cold-headed or cold-extruded parts which have been subjected to a subsequent heat treatment. As the properties of the parts in the cold-headed or cold-extruded, and subsequently not-heat-treated condition, are largely dependent on the applied cold-heading or cold-extruding conditions, these are, if necessary, subject to agreement between the purchaser and the manufacturer of the parts.

标准预览图