ISO 9609:2016-航空航天.带MJ螺纹的标准对边六角平螺母.等级:450MPa（环境温度）/120℃、450MPa（环境温度）/235℃、600MPa（环境温度）/425℃、900MPa（环境温度）/235℃ 900兆帕（环境温度）/315摄氏度、900兆帕（环境温度）/650摄氏度、1100兆帕（环境温度）/235摄氏度-国家数字标准馆

现行 ISO 9609:2016

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Aerospace — Nuts, hexagonal, plain, reduced height, normal across flats, with MJ threads, classifications: 450 MPa (at ambient temperature) /120 degrees C, 450 MPa (at ambient temperature) /235 degrees C, 600 MPa (at ambient temperature) /425 degrees C, 900 MPa (at ambient temperature) /235 degrees C, 900 MPa (at ambient temperature) /315 degrees C, 900 MPa (at ambient temperature) /650 degrees C, 1 100 MPa (at ambient temperature) /235 degrees C 航空航天.带MJ螺纹的标准对边六角平螺母.等级:450MPa（环境温度）/120℃、450MPa（环境温度）/235℃、600MPa（环境温度）/425℃、900MPa（环境温度）/235℃ 900兆帕（环境温度）/315摄氏度、900兆帕（环境温度）/650摄氏度、1100兆帕（环境温度）/235摄氏度

发布日期： 2016-02-18

ISO 9609:2016规定了带MJ螺纹的平六角螺母的尺寸，高度减小，平直，分类为:450 MPa/120°C、450 MPa/235°C、600 MPa/425°C、900 MPa/235°C、900 MPa/315°C、900 MPa/650°C、1100 MPa/235°C、1100 MPa/730°C和1250 MPa/600°C。
注:1 450 MPa、600 MPa、900 MPa、1 100 MPa和1 250 MPa对应于螺母在环境温度下能够承受的最小拉伸应力，当使用更高强度等级的螺栓进行试验时，螺母能够承受该最小拉伸应力而不会断裂或开裂。
注2 120°C、235°C、425°C、315°C、650°C、730°C和600°C对应于环境温度恢复后，螺母能够承受的最高温度，而不会永久改变其原始特性。
最高温度由表面处理决定。
根据ISO 245，带有孔的螺母应与锁线一起使用。
ISO 9609:2016仅适用于航空航天产品标准的编制。

ISO 9609:2016 specifies the dimensions of plain, hexagonal nuts, reduced height, normal across flats, with MJ threads, of classifications: 450 MPa/120 °C, 450 MPa/235 °C, 600 MPa/425 °C, 900 MPa/235 °C, 900 MPa/315 °C, 900 MPa/650 °C, 1 100 MPa/235 °C, 1 100 MPa/730 °C, and 1 250 MPa/600 °C.
NOTE 1 450 MPa, 600 MPa, 900 MPa, 1 100 MPa and 1 250 MPa corresponds to the minimum tensile stress which the nut is able to withstand at ambient temperature without breaking or cracking when tested with a bolt of a higher strength class.
NOTE 2 120 °C, 235 °C, 425 °C, 315 °C, 650 °C, 730 °C and 600 °C corresponds to the maximum temperature that the nut is able to withstand without permanent alteration to its original characteristics, after ambient temperature has been restored. The maximum temperature is conditioned by the surface treatment.
Nuts provided with holes are intended to be used with lockwire in conformity with ISO 245.
ISO 9609:2016 is only applicable for the compilation of aerospace product standards.

分类信息

发布单位或类别：国际组织-国际标准化组织

ICS分类： 49.030.30航空航天制造用紧固件 - 螺母

关联关系

研制信息

归口单位： ISO/TC 20/SC 4

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