Originally Posted by
dddd
I think that the term "Hi-Ten" can be used flexibly, i.e. that there is no standard numerical specification for the tensile strength or yield strength of steel that is named "hi ten".
I believe "Hi-Ten" was Tange's trademarked name for their AISI 1040 equivalent steel bicycle tubing, variously termed "high tensile" or "high carbon" by other manufacturers.