| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide: a thin metallic wire for a saw wire core material which is a thin wire and yet has high strength and high rigidity, and which can have prolonged life by suppressing fatigue fracture and improving corrosion resistance; and a method of producing the thin metallic wire for a saw wire core material.SOLUTION: There is provided the thin metallic wire used for a core material of an abrasive grain fixed type saw wire manufactured by sticking particulate cut abrasive grain to the surface of the saw wire. The thin metallic wire is comprised of an austenitic stainless steel wire containing, by mass%, C:0.05 to 0.15, Si:≤2.0, Mn:≤3.0, Ni:6.0 to 9.5, Cr:16.0 to 19.0 and N:0.005 to 0.25%, while 2C+N is adjusted to 0.17 to 0.40%, and the balance Fe with inevitable impurities. The thin metallic wire has a tensile strength (σ):2,500 to 3,500 MPa and has a property in which an elastic ratio of a strain amount (E1) of a proportional elastic range in a stress-strain diagram in the above tensile test performed on the thin metallic wire and total strain amount until fracture (E0),α=(E1/E0)×100 is 45% or more.</p> |
