You may use ASTM A890 Gr4A
See ASTM A890/890M Standard Specification for castinngs, iron-chromium,
nickel-molibdenum corrosion resisstsnt, duplex for general application
for mech/chem properties
I hope the above can help you.
> -----Original Message-----
> From: jayamkondan kanakasabai [SMTP:jayamkondan@yahoo.com]
> Sent: Tuesday, July 02, 2002 11:02 PM
> To: PipingDesign@yahoogroups.com
> Subject: [PipingDesign] (unknown)
>
> Hi all,
> I,m preparing a material specification for duplex
> steel. Pipe material is A790 UNS 31803 gr. I'm struck
> up in selecting the material grade for casting
> equivalent to UNS 31803 grade. request a material
> specialist help.
>
> regards
>
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Received on Tue Jul 02 21:19:00 2002
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