This recommended practice establishes the method for qualification testing of tube joints and fittings using the rotary or planar flexure test method described in ARP 1185. This qualification test method requires the determination of S-N type curves except that tube deflections are plotted versus the number of test cycles. This replaces flexure testing to a single stress level as specified in MIL-F-18280, B and C revisions.
SAE ARP1258-1973 history
2013SAE ARP1258B-2013 Qualification of Hydraulic Tube Joints to Specified Flexure Fatigue Requirements
2011SAE ARP1258A-2011 QUALIFICATION OF HYDRAULIC TUBE JOINTS TO SPECIFIED FLEXURE FATIGUE REQUIREMENTS
1993SAE ARP1258B-1993 Qualification of Hydraulic Tube Joints to Specified Flexure Fatigue Requirements
1973SAE ARP1258-1973 QUALIFICATION OF HYDRAULIC TUBE JOINTS TO SPECIFIED FLEXURE FATIGUE REQUIREMENTS