AM355 Forgings alternative material

[mamoizkhan]

I want to know what is AM 355 and its equvilent in ASTM and ANSI. Is AM 355 still available with this name. Kindly help.

 

[rneill]

You might try a quick google search on something like this. I found this as the first link up ...

http://www.suppliersonline.com/propertypages/Alloy355.asp#RelatedNames

 

[arunmrao]

AM-355


Category Steel
Class Stainless steel
Type Precipitation-hardening nonstandard
Designations United States: UNS S35500

Mechanical Properties


Properties Conditions
T (°C) Treatment
Density (×1000 kg/m3) 7.7-8.03 25
Poisson's Ratio 0.27-0.30 25
Elastic Modulus (GPa) 190-210 25
Tensile Strength (Mpa) 1170 25 equalize plus overtemper 540°C (bar) more
Yield Strength (Mpa) 1070
Elongation (%) 12
Reduction in Area (%) 25




Learn the rules,so you know how to break them properly.
Dalai Lama

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[metengr]

Go here for detailed information

http://www.cartech.com/ssalloysprod.aspx?id=2020

There is no ASTM equivalent for this alloy. As far as an alternative alloy to UNS S35500, this is not an easy solution because it is application specific. You need to first obtain the technical information above and compare with alternative Cr-Ni-Mo steels or consider upgrading to a Ni-base alloy.

 

[safiamoiz]

Thanks metengr.
What about ASTM A 705 Grade 634.
My application is a pressure vessel . I have to have forgings in sheel and dish form.
Kindly advice.
Regards
Moiz Khan

 

[metengr]

safiamoiz;
Indeed, this material falls under Grade 634 in ASTM A 704. However, this material is not suitable for pressure retaining use in pressure vessels, only general use.

Instead, if you need a PH stainless steel you can use ASTM A 704 Grade 634 (17-4 PH) for this application because it is a code approved material for ASME Section VIII, Div 1 pressure vessel application.

 

[mamoizkhan]

Dear metengr

ASME SA 705 grade 634 is a ASME allowed pressure vessel material . See ASME Section II A for reference for Class NB - Class I pressure vessel material.(However, 704 does not exist, i thing it is a typographic error)

 

[mcguire]

This alloy is currently produced for only one application, a military helicopter control blade. Availability may thus be an issue.

Michael McGuire

http://stainlesssteelforengineers.blogspot.com/

 

[metengr]

mamoizkhan;
Yes, Thank you. However, Grade 630 material is not permitted for use in Section VIII, Div 1 vessels or Section I, only Section III.