Title:
HIGH STRENGTH AUSTENITIC FREE-CUTTING STAINLESS STEEL WIRE AND METHOD OF PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP2014189833
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a high strength austenitic free-cutting stainless steel wire having high strength and excellent machinability at low cost.SOLUTION: There is provided the high strength austenitic free-cutting stainless steel wire containing, by mass%, C:0.05 to 0.15%, Si:0.8% or less, Mn:5.0% or less, P:0.05% or less, S:0.10 to 0.35%, Cr:14.0 to 18.0%, Ni:2.0 to 7.5%, N:0.01 to 0.10%, Cu:1.0% or less, Mo:1.0% or less and the balance Fe with inevitable impurities. In the high strength austenitic free-cutting stainless steel wire, M=551-462(C+N)-9.2Si-8.1Mn-29(Ni+Cu)-13.7Cr-18.5Mo: 35.0 to 90.0, F=(Cr+Si+Mo)-(Ni+Mn+Cu+17.5C+10 N): 4.10 or more, a hardness of cross-section (Hv) is 350 or more and a variation in hardness is 50 or less.
Inventors:
HIKASA HIRONARI
TAKANO KOJI
TAKANO KOJI
Application Number:
JP2013066271A
Publication Date:
October 06, 2014
Filing Date:
March 27, 2013
Export Citation:
Assignee:
NIPPON STEEL & SUMIKIN SST
International Classes:
C22C38/00; B21C1/00; C21D7/02; C22C38/60
Domestic Patent References:
| JP2001200344A | 2001-07-24 | |||
| JP2001234295A | 2001-08-28 | |||
| JPS62227518A | 1987-10-06 | |||
| JP2009001844A | 2009-01-08 | |||
| JP2013014799A | 2013-01-24 | |||
| JP2001200344A | 2001-07-24 | |||
| JP2001234295A | 2001-08-28 | |||
| JPS62227518A | 1987-10-06 | |||
| JP2009001844A | 2009-01-08 | |||
| JP2013014799A | 2013-01-24 |
Foreign References:
| US4784828A | 1988-11-15 | |||
| US4784828A | 1988-11-15 |
Attorney, Agent or Firm:
Masatake Shiga
Norio Takahashi
Sumio Tanai
Yuji Masui
Tomoo Katsumata
Norio Takahashi
Sumio Tanai
Yuji Masui
Tomoo Katsumata