Need for steel that is reasonably easy to machine and work with, & that has a yield strength of 75,000 to 85,000 PSI without heat treatment Question
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Posted by: john2003 ®

08/04/2006, 16:45:41
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Hi everyone,

Can anyone please recommend a steel that is reasonably easy to machine and work with, & that has a yield strength in the range of at least 75,000 to 85,000 PSI ? I would rather not get into heat treating in order to achieve the desired yield strength if possible.

The small part would likely be made from flat plate stock, and could be made from a block 2.25" wide X 2" long X 1" high.

Does anyone know of a reliable web site or metal supply site that will give the price for the steel in flat and/or round stock, and then give the specs for the steel as sold, such as yield strength, machinability rating, general technical data on the steel etc. ?

I would like to be able to specify something the machinist can readily obtain, and obtain at reasonable cost. It seems the same grade of steel can come in different conditions or be processed in different ways that effect yield strength, so I need to be able to specify those conditions / processes and also know that the steel is available as flat or round stock as required.

www.matweb.com has much technical data, but it does not really help me narrow things down such as, will the material be hard to get, what will it cost, does it come in flat or round stock as required, & also in the condition to meet the required yield strength, etc..

I would like to be able to specify the exact grade and conditions so that I can rely on the yield strength being met, and know that the steel is available in flat or round stock as required.

Any recommendations or web sites you could direct me to would be appreciated.

Thanks
John








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Re: Need for steel that is reasonably easy to machine and work with, & that has a yield strength of 75,000 to 85,000 PSI without heat treatment
Re: Need for steel that is reasonably easy to machine and work with, & that has a yield strength of 75,000 to 85,000 PSI without heat treatment -- john2003 Post Reply Top of thread Forum
Posted by: Kelly Bramble ®

08/04/2006, 17:06:56
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According to my handy-dandy AISI reference chart:

AISI 1080 (As rolled) - Yield = 85,000 psi
AISI 4140 (Normalized)- "" = 95,000 psi
AISI 4340 (Normalized)- "" = 125,000 psi
AISI 6150 (Normalized)- "" = 89,250 psi

1080 machines the best

Try Carpenter Speciality Steels (Carpenter Technology)- search google







Modified by Kelly Bramble at Fri, Aug 04, 2006, 17:11:58


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Re: Re: Need for steel that is reasonably easy to machine and work with, & that has a yield strength of 75,000 to 85,000 PSI without heat treatment
Re: Re: Need for steel that is reasonably easy to machine and work with, & that has a yield strength of 75,000 to 85,000 PSI without heat treatment -- Kelly Bramble Post Reply Top of thread Forum
Posted by: john2003 ®

08/04/2006, 20:33:31
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Hi Kelly,

Thanks for your reply. I found some general steel and machining reference info here...

https://www.carbidedepot(dot)com/resources.htm

and a machinability chart here...

https://www.carbidedepot(DOT)com/formulas-machinability.htm

However, they don't list the 1080. If it machines as well or better than 4140 or 4130 annealed, it should work fine.

I will check out carpenter steels.

Thanks again,
John







Modified by Administrator at Fri, Aug 04, 2006, 20:43:18


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Re: Re: Re: Need for steel that is reasonably easy to machine and work with, & that has a yield strength of 75,000 to 85,000 PSI without heat treatment
Re: Re: Re: Need for steel that is reasonably easy to machine and work with, & that has a yield strength of 75,000 to 85,000 PSI without heat treatment -- john2003 Post Reply Top of thread Forum
Posted by: devitg ®

08/09/2006, 13:04:52
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I preferr 4140 or 4130, easy to get from the shelf.







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