Nickel Alloy Hastelloy B-3 Wire UNS N10675, Alloy B-3 Wire
Hastelloy B3 wire is a corrosion-resistant alloy primarily composed of nickel, molybdenum, and chromium, with significant additions of tungsten. Developed as an improvement over earlier Hastelloy Alloys, B3 offers enhanced resistance to hydrochloric acid at all concentrations and temperatures compared to its predecessors. This makes it particularly suitable for environments where strong acids are present, such as chemical processing industries.
The composition of Hastelloy B3 typically includes:
Nickel (Ni): provides the base for corrosion resistance and thermal stability.
Molybdenum (Mo): enhances resistance to reducing media and acidic environments.
Chromium (Cr): contributes to oxidation resistance and stability at high temperatures.
Tungsten (W): improves resistance to corrosion in a wide range of aggressive chemicals.
Hastelloy B3 wire is known for its excellent resistance to stress corrosion cracking, pitting, and corrosion fatigue. It maintains its properties even in highly corrosive conditions, including sulfuric, phosphoric, and acetic acids. This makes it a preferred choice for applications such as chemical reactors, evaporators, heat exchangers, and various components in chemical processing plants.
The wire form of Hastelloy B3 allows for versatility in manufacturing processes, including welding, weaving, and forming into different shapes as needed for specific industrial applications. Its combination of mechanical strength and corrosion resistance makes it indispensable in industries where reliability in harsh environments is critical.
Parameter of Hastelloy Alloy Series:
Hastelloy Grade | Hastelloy B | Hastelloy C-276 | Hastelloy C-4 | Hastelloy C-22 | Hastelloy C-59 | Hastelloy G | Hastelloy X |
Corresponding brand | N10001/ NS321/ ONl65Mo28Fe5/ VN12MV | N10276 / 2.4819/ NS334 / CW12MW | N06455 / 2.4610I 00Cr16Ni65Mo16Ti / NS335 | N06022 / 2.4602/ NS3308 | N06059 / 2.4605/ NS3311 / Alloy59 | N06007 / 2.4618/ NS3402 | N06002 / 2.4665/ GH3536 / GH32 |
Chemical composition% | |||||||
C≤ | 0.05 | 0.01 | 0.015 | 0.015 | 0.01 | 0.05 | 0.05-0.15 |
Mn≤ | 1 | 1 | 1 | 0.5 | 0.5 | 1.0-2.0 | 1 |
P≤ | 0.04 | 0.04 | 0.04 | 0.02 | 0.015 | 0.04 | 0.04 |
S≤ | 0.03 | 0.03 | 0.03 | 0.02 | 0.01 | 0.03 | 0.03 |
Si≤ | 1 | 0.08 | 0.08 | 0.08 | 0.01 | 1 | 1 |
Cr≤ | ≤1 | 14.5-16.5 | 14.0-18.0 | 14.0-18.0 | 22.0-24.0 | 21.0-23.5 | 20.5-23.0 |
Ni≤ | the base | the base | the base | the base | the base | the base | the base |
Mo | 26.0-30.0 | 15.0-17.0 | 14.0-17.0 | 12.5-14.5 | 15.0-16.5 | 5.5-7.5 | 8.0-10.0 |
Cu | ≤0.50 | 1.5-2.5 | |||||
N | W:3.0-4.5 | W:2.5-3.5 | W:≤1.0 | W:0.2-1.0 | |||
Nb | 1.75-2.50 | ||||||
Other | V:0.20-0.40 Co:≤2.50 Fe:4.0-60. | V:≤0.35 Co:≤2.50 Fe:4.0-7.0 | Ti:≤0.70 Co:≤2.0 Fe:≤3.0 | V:≤0.35 Co:≤2.5 Fe:2.0-6.0 | AI:0.10-0.40 Co:≤0.30 Fe:≤1.50 | Co:≤2.5 Fe:≤18.0-21.0 | Co:≤0.5-2.5 Fe:≤17.0-20.0 |
What Are The Main Applications Of Hastelloy B3 Wire?
Hastelloy B3 wire finds applications across various industries where corrosion resistance and reliability in challenging environments are paramount. Some of the main applications include:
Chemical Processing: Hastelloy B3 wire is extensively used in chemical processing industries for equipment such as reactors, heat exchangers, and piping systems. It offers superior resistance to a wide range of corrosive chemicals, including hydrochloric, sulfuric, phosphoric, and acetic acids.
Pharmaceutical Industry: It is utilized in pharmaceutical manufacturing processes where resistance to acidic and corrosive environments is necessary for ensuring product purity and equipment longevity.
Pulp and Paper Industry: Hastelloy B3 wire is employed in bleaching equipment and other chemical processing applications within the pulp and paper industry, where it can withstand the corrosive effects of chlorine dioxide and other chemicals used in pulp processing.
Waste Treatment: In wastewater treatment plants, Hastelloy B3 wire is used in components exposed to aggressive chemical environments, ensuring longevity and reliability in the treatment of industrial and municipal waste.
Oil and Gas Industry: It is used in oil refining and petrochemical processes where exposure to corrosive gases, acids, and salts necessitates materials with high resistance to corrosion and stress cracking.
Aerospace and Defense: Hastelloy B3 wire is utilized in critical components requiring high strength and corrosion resistance in aerospace applications, such as aircraft engines and turbines.
Power Generation: It finds use in power plants, particularly in parts of boilers and heat exchangers where resistance to high temperatures and aggressive chemical environments is crucial for operational reliability.
Overall, Hastelloy B3 wire's properties make it indispensable in industries where reliability and durability under harsh conditions are essential requirements for equipment and components.
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