G-30® Alloy
UNS N06030
Trade Name: Hastelloy®

HASTELLOY® G-30® alloy is a high chromium nickel-base alloy which shows superior corrosion resistance over most other nickel- and iron-base alloys in commercial phosphoric acids as well as many complex environments containing highly oxidizing acids such as nitric/hydrochloric, nitric/hydrofluoric and sulfuric acids.

The resistance of G-30 alloy to the formation of grain boundary precipitates in the heat-affected zone makes it suitable for use in most chemical process applications in the as-welded condition. (Information provided by Haynes International, Inc.)

ASME Boiler and Pressure Vessel Specifications
Sheet/ Plate Forgings Weld Fittings Rod and Bar Tubing - Welded/ Smls Pipe - Welded/ Smls Bolting- Bolts/ Nuts Filler Metals
SB582 NA SB366 SB581 SA626/  SB619/   SB622 SB581-G30/ SB581-G30 ERNiCrMo-11

ASME Boiler and Pressure Vessel Chemical Requirements for Sheet/Plate
Note: all percentages max unless otherwise specified
Ni Cr Fe Mo Cu Mn Co C W Si P S Nb+Ta
Rem 28.0-31.5 13.0-17.0 4.0-6.0 1.0-2.4 1.5 5.0 0.03 1.5-4.0 0.8 0.04 0.02 0.30-1.50

ASME Boiler and Pressure Vessel Mechanical Properties for Sheet/Plate
Tensile Strength, Min ksi Yield Strength, (0.2% offset), Min, ksi Min. Elongation in 2", % Density lb/in³
85 35 30.0 0.297


CMC Letco Ind shall not be held liable for any type of damages resulting from the use of this information. The end user assumes all risk and liability in connection with the use of this information.