Flat spring hose clamp and manufacture of same.

摘要

A flat spring hose clamp having an improved resistance to brittle fracture and a method for manufacturing the same are disclosed, the hose clamp being made of a steel having a steel composition consisting essentially of, by weight %: C : 0.30 - 0.70%, Si: 0.70% or less, Mn: 0.05 -1.00%, P : 0.030% or less, S : 0.020% or less, Cr: 0.05 - 2.00%, Mo: 0.10 - 0.50%, Nb: 0.005 - 0.100%, sol. Al: 0.10% or less, N : more than 0.0020%, but not more than 0.015%, Ti: 0 - 0.10% and/or B: 0 - 0.0020%, and a balance of Fe and incidental impurities, and the steel possessing a uniform bainite structure.