<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 6.00.2900.2668" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2></FONT> </DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=PAULREVENKOJONES@aol.com href="mailto:PAULREVENKOJONES@aol.com">PAULREVENKOJONES@aol.com</A> = </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, June 25, 2005 = 8:22 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Piano wire tensile = strength</DIV> <DIV><BR></DIV><FONT face=arial,helvetica><FONT lang=0 = face=Arial size=2 FAMILY="SANSSERIF" PTSIZE="10">In a message dated 6/25/2005 = 8:48:50 PM Central Standard Time, <A = href="mailto:cmpiano@comcast.net">cmpiano@comcast.net</A> writes:<BR><BR> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px = solid; MARGIN-RIGHT: 0px" TYPE="CITE">It's elementary, my dear Watson.  Twisting the wire = work hardens it and <BR>therefore it is stronger.  Anyway, that's as = good as any for a reason.<BR></BLOCKQUOTE> <DIV><BR><BR>Carl:<BR>Twisting (unless it were to be 20 or 30 times = perhaps) doesn't even approach "work-hardening" or the duplex deformation = properties of metal which is bent past a point in the curve of elasiticity. = So....not as good a reason as any. :-)<BR><BR>Paul R-J</FONT> </DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>Paul,  I was just being funny, but if 30 = turns approaches "work hardening" then with 3 you're ten percent on the way.</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>BTW, I had a 7 ft Hardman that I put on new = strings.  The bass strings I'd put on (made by brand X) were not good.  I'd = decided to have them made over by brand ? but when I  tried twisting them = 3 full turns they shaped up nicely.  </FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>One comment about twisting strings that dawned on = me.  Judge the number of turns (if you want to do it) by the length of the string.  Obviously a long string  can tolerate more = twists.  Like we need a spec on number of twists per foot.</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>Carl Meyer PTG assoc<BR>Santa Clara, Ca.</FONT></FONT></DIV></BLOCKQUOTE></BODY></HTML>