Hastelloy G30、N06030、NS3404、W Nr.2.4603

Overview:

Hastelloy G30 Hastelloy G30 is a nickel-based superalloy composed of nickel, chromium, cobalt, tungsten and other elements. The nickel content is about 37%. Hastelloy G30 is a nickel-based alloy with a high chromium content. It is more compatible with commercial phosphoric acid and many highly oxidizing acid media such as nitric acid, hydrochloric acid, hydrofluoric acid and sulfuric acid than most other nickel-based and iron-based alloys. Excellent corrosion resistance. G30 alloy can prevent the formation of grain boundary precipitates in the welding heat affected zone, because its welded product is suitable for various chemical processing engineering applications.

Hastelloy G30 Chemical Composition

%	C	Mn	P	S	Si	Cr	Mo	Ni	Nb	W	Cu
Min.						28.0	4.0	margin	0.3	1.5	1.0
Max.	0.03	1.5	0.04	0.02	0.8	31.5	6.0		1.5	4.0	2.4

typical application:

   Hastelloy G30 Hastelloy is widely used in phosphoric acid equipment, sulfuric acid equipment, nitric acid equipment, nuclear fuel reprocessing, nuclear waste processing, pickling operations, petrochemical products, fertilizer production, insecticidal squeeze production, and gold ore extraction. Hastelloy G30 Hastelloy G30 has excellent resistance to mixtures of hydrofluoric acid and nitric acid used in applications such as stainless steel pickling. Hastelloy G30 has a commercial phosphate performance compared to other nickel-based or iron-based alloys. Gives better resistance. It is increasingly used as an acid evaporator in the fertilizer industry.

   Comparison of the corrosion resistance of Hastelloy G30 in commercial phosphoric acid: The comparison of the corrosion resistance of Hastelloy G30 Hastelloy with G alloy and 625 alloy in commercial phosphoric acid is as follows. The corrosion resistance of commercial phosphoric acid is determined by a variety of factors, including concentration , Temperature, origin of impurities and phosphate ore, etc. The corrosion rate of phosphoric acid of the same concentration made from different phosphate ore sources can vary widely. Therefore, the corrosion test is measured in phosphoric acid from different sources, and the corrosion resistance of G-30 alloy is expressed as a function of the corrosion rate of G alloy and 625 alloy, respectively. In the acid with the same corrosion rate of 0.025-2.5mm, the corrosion resistance of G-30 alloy is usually 2-10 times stronger than that of G alloy and 625 alloy.

Special alloy materials commonly used in the chemical industry:

Stainless steel: 253MA, 316L, 353MA, 654SMO, 904L, etc.

Nickel-based alloys: Alloy 31, Alloy 59, Hastelloy B, Hastelloy C, Hastelloy C-276, etc.

Corrosion-resistant alloys: NS112, NS322, NS333, NS335