JIS Z 2241金属材料拉伸试验方法.docx

JIS Z 2241金属材料拉伸试验方法.docx

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JISZ2241金属材料拉伸试验方法

目次

1适用范围............................................................................................................................１

2规范性引用文件....................................................................................................................１

3术语和定义...............................................................................................................................１

4符号和说明..............................................................................................................................2

5原理.........................................................................................................................................8

6试样.........................................................................................................................................18

6.1形状及尺寸.........................................................................................................................18

6.2试样种类..............................................................................................................................18

6.3试样加工...............................................................................................................................19

7原始横截面积的测定..............................................................................................................21

8原始标距的标记......................................................................................................................21

9试验设备的准确度..................................................................................................................22

9.1试验机...................................................................................................................................22

9.2延伸计....................................................................................................................................22

10试验条件.................................................................................................................................22

10.1试验零点的设定...................................................................................................................22

10.2试样夹持方法.......................................................................................................................22

10.3试验速度..............................................................................................................................23

11上屈服强度的测定.................................................................................................................24

12下屈服强度的测定.................................................................................................................25

13规定塑性延伸强度的测定......................................................................................................25

14规定总延伸强度的测定...........................................................................................................25

15规定残余延伸强度的验证和测定..........................................................................................25

16屈服点延伸率的测定............................................................................................................26

17最大力塑性延伸率的测定....................................................................................................26

18最大力总延伸率的测定..........................................................................................................26

19断裂总延伸率的测定..............................................................................................................26

20断后伸长率的测定.................................................................................................................27

21断面收缩率的测定................................................................................

..................................28

22试验报告....................................................................................................................................28

23测量不确定度.............................................................................................................................29

23.1一般..........................................................................................................................................29

23．2试验条件...............................................................................................................................29

23.3试验结果................................................................................................................................29

附录A（参考附录）计算机控制拉伸试验机使用的建议...............................................................30

附录B（规范性附录）厚度0.1mm～<3mm薄板和薄带使用的试样类型...............................31

附录C（规范性附录）直径或厚度小于4mm线材、棒材和型材使用的试样类型.....................34

附录D（规范性附录）厚度等于或大于3mm板材和扁材以及直径或厚度等于或大于4mm线材、棒材和型材使用的试样类型........................................................................................................35

附录E（规范性附录）管材使用的试样类型...............................