What is the difference between Hastelloy B3 and Hastelloy C276?
Hastelloy B3 is a nickel-molybdenum alloy with significant additions of chromium and iron. It contains about 65% nickel, 28-32% molybdenum, 1.5-3% iron, and smaller amounts of chromium and other elements. Hastelloy C276: Hastelloy C276 is a nickel-molybdenum-chromium alloy with tungsten additions.
Characteristics
Hastelloy Alloys are a common industrial raw material, the main components of which are copper and tin.
It has the characteristics of corrosion resistance and wear resistance, and is widely used in chemical production. Nickel rods are also used to manufacture parts for various purposes, such as chemical equipment housings, instrument housings, automobile engine cylinder heads, motorcycle wheels, food packaging boxes, etc.
In addition, it can also be used as catalyst carriers to prepare various chemical reaction media such as zinc sulfate compounds, borates, and calcium barium titanate salts, and the application prospects are very broad. The advantages are: strong corrosion resistance; good abrasion resistance; high tensile strength; high compressive strength; good heat resistance
Hastelloy C-276 Is a nickel-containing tungsten - chromium - molybdenum alloy, very low carbon content
of silicon is considered to be a panacea corrosion-resistant alloys. The main moisture chlorine, various
oxidizing chloride, chloride salts, sulfuric acid and oxidizing salt, in a low temperature and medium temperature hydrochloric acid has very good corrosion resistance. Thus, nearly three decades, corrosion in harsh environments, such as chemical, petrochemical, flue gas desulfurization, pulp and paper, environmental protection and other industrial fields has a very wide range of applications.
Corrosion properties
The alloy has the following characteristics: 1.two in oxidizing and reducing atmosphere state, for most corrosive media has excellent corrosion resistance. 2. has excellent resistance to pitting, crevice corrosion and stress corrosion. Higher Mo, Cr content of the alloy corrosion resistant to chlorine ions, W elements to further improve the corrosion resistance. Meanwhile, Hastelloy C-276 alloy is one of only a few resistant to moisture chlorine, hypochlorite and chlorine dioxide-corrosive material, high concentrations of chloride salts such as ferric chloride and copper chloride have significant corrosion resistance. Applicable to various concentrations of sulfuric acid solution, it is one of the few materials can be used in hot concentrated sulfuric acid solution.
Chemical composition
| | C | S | Mn | P | S | Ni | Cr | Mo | Fe | Co | W | V |
| Min | | | | | | | 14.5 | 15.0 | 4.0 | | 3.0 | |
| Max | 0.01 | 0.08 | 1.0 | 0.04 | 0.03 | Margin | 16.5 | 17.0 | 7.0 | 2.5 | 4.5 | 0.35 |
Physical property
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High Tensile Strength Hastelloy B3 Hastelloy Alloys In Industrial Settings Images
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