17-4 Stainless in Tube Form 1

[pmarin]

I am currently working on a application that requries 17-4 stainless in tube form. I have had NO luck in sourcing it out. We have to resort to gun-drilling round bars, which is an absolute waste. I need help finding this 17-4 in tube form. I hope somebody can come to my rescue.

Marin

 

[arunmrao]

Ed will be here soon to rescue you.

 

[EdStainless]

Thanks for the vote arunmrao!

There used to be seamless 17-4 available from both Japan and Northern Europe. Limited sizes, expensive, and very long lead times.
How about using 17-7 or Custom 465 as an alternate? These alloys can be welded and then cold drawn to size. We have seen a number of applications convert in the last few years because of sourcing difficulties.
Give me an idea of the sizes that you are looking for.
ed

= = = = = = = = = = = = = = = = = = = =
Corrosion, every where, all the time.
Manage it or it will manage you.

http://www.trent-tube.com/contact/Tech_Assist.cfm

 

[CoryPad]

Plymouth Tube manufactures 17-4 tube.

http://www.plymouthtube.com

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[pmarin]

First of all, thank all of you who responded to my request.
17-7 will also be ok, or I need another stainless comparable to 17-4 that would not melt when tempered and brazed to cpm 10V (A11). This application requires a substrate of stainless compatible with the tempering temperatures of 10V:
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Hardening 10V

Preheat: Heat to 1500-1550 F (815-845 C) Equalize
Second pre-heat stage at 1850-1900 F (1010-1040 C) suggested for vacuum or atmosphere hardening.
Austeniztize: Heat to 1850-2150 F (1010-1175 C), hold time at temperature 30-45 minutes.
Quench: Air or positive pressure quench (2 bar minimum) to below 125 F (50 C), or salt or interrupted oil quench to about 1000 F (540 C), then air cool to below 125 F (50 C). Salt bath treatment, if practical, will ensure the maximum attainable toughness for a given hardening treatment. Vacuum or atmosphere quench rate through 1850-1300 F (1010-705 C) range is critical to achieve optimum heat treat response.
Temper: Double temper at 1000 F (540 C) minimum, 2 hours minimum each time.
Size Change: 0.03 / 0.05%
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I DON'T KNOW OF ANY OTHER STAINLESS THAT WOULD SUSTAIN THESE TEMPERATURES WITHOUT MELTING AWAY? ANY RECCOMENDATIONS?

 

[EdStainless]

17-7 should work fine.
Interesting composite structure.

= = = = = = = = = = = = = = = = = = = =
Corrosion, every where, all the time.
Manage it or it will manage you.

http://www.trent-tube.com/contact/Tech_Assist.cfm

 

[Kenneth]

http://www.handytube.com/