ISO5832-1第一部分Wroughtstainlesssteel锻造不锈钢

1、ISO5832-1 第一部分Wrought stainless steel 锻造不锈钢1、范围ScopeISO5832 这部分对用锻造不锈钢制造的外科植入物指定了相对应的特定的测试方法。this part of iso5832 specifies the characteristics of,and corresponding test methods for,wrought stainless steel for use in the manufacture of surgical implants.提供最适宜的两种类型的不锈钢化学基础成分（见表1）Provision is made for

2、 two types of stainless steel based on chemical composition(see table 1)NOTE 1 用使用本标准材料加工的最终产品的试样的力学性能不必完全与本标准规定的指标相同。NOTE 22、规范性引用文件normative references下列文件中的条款通过本标准的引用而成为本标准的条款。 凡是注日提的引用文件， 其随后的所有的修改修订版本均不适于本标准， 但是，为了鼓励根据本标准达成协议的各方的研究，凡是没有注明日期的引用文件，其最新版本均适用于本标准。ISO 377Steel and steel products-Loca

3、tionand preparation of samples and test pieces formechanical testing.ISO 404.3、化学成分chemical composition3.1试验样本 test samples用于分析的样品应符合ISO 377 规定。The selection of samples for analysis shall be carried out in accordance with ISO 377.3.2铸造分析 Cast analysis刚的化学成分应符合表1 的规定。 Cr 含量和 Mo 含量按照下列公式计算所得（C 值）应该不小于

4、26。The cast analysis of the steel when determined in accordance with clause 6 shall comply with the chemical composition specified in table1.The molybdenum and chromium contents shall be such that the C value obtained from the formula given below is not less than 26.C=3.3W Mo +W Cr其中：W Mo 钼的含量，用质量百分

5、比表示；W Cr 铬的含量，用质量百分比表示。表 1化学成分元素质量百分比 %碳0.03硅1.0锰2.0磷0.025硫0.01氮0.1铬17.0 19.0钼2.25 3.50镍13.015.0铜0.50铁余量4、微观条件下的完全退火microstructure in the fully annealed condition4.1 晶粒度grain size奥氏体的晶粒度按照第六条规定不得大于5 级。the austenitic grain size,determined in accordance with clause6,shall not be coarser than grain siz

6、e No.5.4.2 微观结构microstructure根据条款6 进行检测时，此不锈钢应不含铁素体、X 相或者 相。the steel shall have a structure free fromdelta ferrite,chior sigma phase,when examined inaccordance with Clause 6.4.3 非金属夹杂物含量inclusion content钢铁应该检验非金属夹杂物的含量， 在热轧阶段完成尺寸定型以后应该与第六条的规定相一致，不得超过表 2 的规定。the non-metallic inclusion content of the

7、 steel,determined at finished size after a hot-rolling process stage,and in accordance with Clause 6,shall not exceed the limits given in Table 2.注意：有必要符合真空或者电渣冶炼法清洁条件规定。Note： it can be necessary to use vacuum or electroslag melting to produce a steel complying with these cleanliness requirements.表

8、2 夹杂物规定Table 2 inclusion content limitsInclusion contentreference numberType of inclusion夹杂物级别夹杂物类型ThinThick细系列粗系列A1.51B1.51C1.51D1.515力学性能 Mechanical properties5.1试样 test pieces选择的样品和拉伸试件应该符合ISO 377 的规定。the selection and preparation of samples and test pieces for tensile shall be in accordance with

9、 ISO 377.5.2 拉伸试验Tensile test钢在棒材、 丝材、板材、带材形式下的拉伸性能实验应该与条款六相一致，必须分别符合表3、 5、 6 的规定。the tensile properties of the steel in the form of bars,wires,and sheet and strip,when tested in accordance with Clause 6,shall comply with the values specified in Tables 3,5 and 6 respectively.5.3 标记长度 gaugelengthmm。试

10、样的直径 d 或者横截面 SS 指的是试样的原始横截面积单位分别应符合， 标记长010，度应该为 5.65× S0or 50 mm( 见表 4 或表 7) 。S0 is defined as the original cross-sectional area in square millimetres. in accordance with test piece diameter,D1 or section profile,S0,respectively,the gauge length shall be either 5.65 × S0 or 50 mm(see tabl

11、e 4 and table 7).6实验方法Test methods用于确定ISO5832 本部分的规定的测试方法应该符合表8 所列的要求。the test methods to be used in determining compliance with the requirements of this part of ISO 5832 shall be those given in table 8.表 3 钢棒的力学性能Diameter orTensile0.2% proof stress ofElongarion afterConditionthicknessstrengthnon-pr

12、oportional elongarionfracture/Gauge length直径或者厚度拉伸强度0.2%的非比例伸长应力折断后的伸长率 /标记长度状态dRmRp0.2minAminmmMPaMPa%退火的全部490 Rm 69019040冷加工 22860 Rm 110039012超硬 8 1400表 4 标记长度和产品之间的对应Table 4 Correspondence between gauge length and productGauge lengthProduct标记长度产品50 mm5.65× S0Round bar， wiresd 5mmd 5mm圆钢，钢丝S

13、ections,profiles22截面，轮廓面S0 40mmS0 40mmTable 5 Mechanical properties of wires表 5 钢丝的力学性能直径抗拉强度折断后的伸长率 /标记长度状态Rm MPaAmin %d mm0.025d0.131000300.13 d0.23 930300.23 d0.38 89035退火400.38d0.5 8600.5d 0.65 82040d0.65 800400.2 d0.71600Rm18500.7 d1.01500Rm1750冷拔1.0 d1.51400Rm16501.5 d2.01350Rm1600冷拉状态下订货的钢丝，可

14、按照需方的更高强度等级供货，力学性能指标有供需双方协商确定。Table 6 Mechanical properties of strip and sheet表 6 带材和板材的力学性能Tensile0.2% proof stress ofElongarion afterConditionstrengthnon-proportional elongarionfracture/Gauge length拉伸强度0.2%的非比例伸长应力折断后的伸长率 /标记长度状态RmRp0.2minAminMPaMPa%退火的490 Rm 69019040冷加工860 Rm 110069010Table 7 Correspondence between gauge length and thickness of the product表 7 标记长度和厚度和产品之间的对应Gauge lengthProduct标记长度产品5.65× S050 mmRound bar， wiresd 1.5mmd 1.5mm圆钢，钢丝Table 8 Test methods表 8 实验方法ParameterRelevant clause or subclauseTest method参数有关的条款和列表实验方法化学成分ISO 437碳ISO 439硅ISO 629锰3ISO 671硫I