SAE J 502-1972 半圆键

标准号：SAE J 502-1972
中文标准名称：半圆键
英文标准名称：Woodruff Keys
标准类型：J18
发布日期：1972/9/1 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：J18
国际标准分类号：21.120.30;21.160
适用范围：Keys are to be carbon steel or alloy heat treated steel as specified. carbon steel keys are to be 0.30 carbon minimum, with hardness of rockwell B 90 minimum. Alloy steel keys are to be SAE 2330 or 8630 steel, heat treated to a hardness of 40-50 RC; or other alloy steels having equal physical properties at the same hardness. Alloy heat treated keys are to be marked with depressions on the top to distinguish them from carbon steel keys.