Hastelloy G-3、N06985、NS3403、W Nr.2.4619

Hastelloy G-3 overview

Hastelloy G3 alloy, referred to as G3, is a nickel-based corrosion-resistant alloy with superior properties. It belongs to the Ni-Cr-Fe series containing Mo and Cu. It has excellent resistance to oxidation and atmospheric corrosion and stress corrosion cracking. High resistance to local corrosion (pitting, crevice corrosion). Because the alloy contains higher Fe, it has a lower cost than other nickel-based corrosion resistant alloys. G3 alloy is commonly used in flue gas desulfurization systems, papermaking, steam generators for phosphoric acid production and heat exchangers. The oil well pipe made of this alloy has excellent resistance to H2S, CO2 and Cl-corrosion, and is the best material for oil well pipes in acid gas fields. Currently, only Sumitomo Japan, SMC in the United States, V & M in Germany, and Sandvik in Sweden can produce it worldwide.

 

Hastelloy G-3 Chemical Composition

%	C	Mn	P	S	Si	Cr	Mo	Ni	Nb	W	Cu
Min.						21.0	6.0	margin			1.5
Max.	0.015	1.0	0.04	0.03	1.0	23.5	8.0		0.5	1.5	2.5

 

Hastelloy G-3 Variety Specifications and Availability:

 

Hastelloy G varieties: seamless pipes, welded pipes, plates, bars, forgings, rings, wire and matching welding materials.

 

Hastelloy G delivery status: seamless tube: solid solution + acid white, length can be determined; plate: solid solution, pickling, trimming; welded tube: solid solution acid white + RT% flaw detection; forging: annealing + turning; Bars are forged and rolled, surface polished or turned; strips are delivered by cold rolling, solid solution softening, and descaling; wire is solid-washed and disc-shaped or straight, and solid-solution straight polished Status delivery.

 

Special alloy materials commonly used in the paper industry:

Stainless steel: 316LN, 317L, 904L, AL-6XN, 2205, etc.

Nickel-based alloys: Alloy 31, Alloy 59, Alloy 926, Hastelloy C, Incoloy926, etc.

Corrosion-resistant alloys: NS333, NS334