Hangbo Alloy Group offers a diverse range of materials, including round bars, steel plates, strips, seamless pipes, forged products, and wire. Below is a detailed overview of HASTELLOY B-3:
Detailed Introduction to Hastelloy B-3
Hastelloy B-3 is a nickel-molybdenum alloy engineered to offer enhanced resistance to hydrochloric acid and other corrosive environments. This alloy is an improvement over Hastelloy B-2, featuring better thermal stability and increased resistance to pitting and stress corrosion cracking. It performs excellently in reducing conditions and is especially effective in handling non-oxidizing acids.
The alloy's outstanding performance makes it a preferred choice in various chemical processing applications. The modifications in the composition from B-2 to B-3 help mitigate the risks associated with temperature fluctuations and corrosive conditions.
Equivalent Grades by Country:
•ASTM: UNS N10675
•DIN: NiMo28 W.Nr.2.4600
•GB/T: NS3303
International Standards for Hastelloy B-3 Products
The following table outlines the applicable standards for Hastelloy B-3 in various forms:
| Product Form | ASTM Standard |
|---|---|
| Plate,Sheet&Strip | ASTM B333 |
| Round Bar | ASTM B335 |
| Seamless Pipe&Tube | ASTM B622 |
| Welded Pipe&Tube | ASTM B619,ASTM B626 |
| Forging | ASTM B564,ASTM B462 |
| Fittings | ASTM B366 |
Chemical Composition of Hastelloy B-3
The chemical composition of Hastelloy B-3 is summarized in the following table:
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 65.0 - 71.0 |
| Molybdenum (Mo) | 27.0 - 32.0 |
| Iron (Fe) | 1.0 - 3.0 |
| Chromium (Cr) | 1.0 - 3.0 |
| Carbon (C) | ≤ 0.01 |
| Silicon (Si) | ≤ 0.10 |
| Manganese (Mn) | ≤ 3.00 |
| Cobalt(Co) | ≤ 3.00 |
| Alumiun(Al) | ≤ 0.50 |
| Titanium(Ti) | ≤ 0.20 |
| Tungsten(W) | ≤ 3.00 |
| Copper(Cu) | ≤ 0.20 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.010 |
| Vanadium(V) | ≤ 0.20 |
| Tantalum(Ta) | ≤ 0.20 |
| Zirconium(Zr) | ≤ 0.10 |
Physical Properties of Hastelloy B-3
Key physical properties of Hastelloy B-3 are outlined in the table below:
| Property | Value |
|---|---|
| Density | 8.89 g/cm³ |
| Melting Point | 1370 - 1410 °C |
Material Characteristics
Hastelloy B-3 is characterized by several key properties:
•Corrosion Resistance: Superior resistance to chlorides and non-oxidizing acids, particularly hydrochloric acid.
•Thermal Stability: Enhanced stability under high-temperature conditions compared to its predecessor, Hastelloy B-2.
•Weldability: Easily welded using standard practices, allowing for versatile fabrication options.
•Versatility: Effective in both continuous and batch processes in corrosive environments.
Applications of Hastelloy B-3
Hastelloy B-3 is utilized across various industries, including:
•Chemical Processing: Equipment that handles corrosive chemicals in production environments.
•Oil and Gas: Components exposed to harsh refining processes and environments.
•Pharmaceuticals: Systems and equipment used in processes that require resistance to corrosive media.
•Environmental: Applications in waste treatment facilities dealing with corrosive effluents.
