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Model No: Hastelloy B-3
ASTM B333 Hastelloy B-3 Nickel Alloy Strip
The applicable standard for Hastelloy B-3 nickel strip is ASTM B333. The material must be supplied in the solution-annealed condition, in which state it is soft and exhibits optimal corrosion resistance.
Quantity :
US $30.00 - US $45.00
Product Introduction
Hastelloy B-3 is a nickel-molybdenum alloy. If your operating conditions involve hydrochloric acid, dilute sulfuric acid, or any other reducing acid—ranging in concentration from zero to saturation, and in temperature from ambient to the boiling point—then our Alloy B-3 strip is the most cost-effective and reliable solution available on the market.
Its greatest value lies in its superior"thermal stability"compared to its predecessor, Alloy B-2. Veteran engineers who have worked with Alloy B-2 are well aware that, despite its excellent corrosion resistance, the material tends to become brittle if temperature control is even slightly mishandled during processing or equipment operation. Our Alloy B-3 was developed specifically to address this critical pain point.
Chemical Composition
The chemical composition of Hastelloy B-3, as specified by the ASTM B333 standard, is as follows:
| Material Type | C | Cr | Ni | Mo | Mo | Fe |
|---|---|---|---|---|---|---|
| Hastelloy B-3 | ≤0.01% | ≤3.00 | ≤65.00 | 27.00 - 32.00 | ≤3.00 | ≤2.0% |
Mechanical Properties
(annealed state, typical values for sheet metal)
| Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|
| ≥ 760 MPa (110 ksi) | ≥ 350 MPa (51 ksi) | ≥ 40% | - |
Performance Characteristics:
In the annealed state, Hastelloy B-3 exhibits excellent ductility, with an elongation exceeding 40%, making it suitable for cold forming.
Its strength can be enhanced through cold working; in the spring-tempered condition, its tensile strength can reach over 200 ksi (1379 MPa).
In the annealed state, Hastelloy B-3 exhibits excellent ductility, with an elongation exceeding 40%, making it suitable for cold forming.
Its strength can be enhanced through cold working; in the spring-tempered condition, its tensile strength can reach over 200 ksi (1379 MPa).
Supply Standards
| Product Form | Applicable Standard |
|---|---|
| Strip, Sheet, Plate | ASTM B333 |
| Bar | ASTM B335 |
| Seamless Tube | ASTM B622 |
| Welded Tube | ASTM B619 / B626 |
| Forgings | ASTM B564 |
Machining and Welding
Experience in factory manufacturing indicates that when machining Hastelloy B-3 nickel alloy, it is best to avoid using iron-based tooling or fixtures for direct clamping. Doing so can easily lead to iron ion contamination, which may subsequently result in pitting corrosion during the alloy's service life. Preventing iron ion contamination is a critical measure for protecting the integrity of Alloy B-3.
Skillful processing and welding play a significant role in preserving materials; the following are appropriate recommendations for your facility.
- Cold Working: Beware of Work Hardening
Hastelloy B-3 exhibits a pronounced tendency toward work hardening—the more it is hammered or bent, the harder it becomes. If you intend to perform complex cold forming operations, please take note: the material should be formed in a single continuous process while it is still in its soft state (solution-annealed condition). If the process is interrupted for an extended period—allowing the material to harden—it is imperative to perform a solution annealing treatment to restore its ductility before resuming work; otherwise, the material is highly susceptible to cracking.
- Hot Working: Speed is Key
If hot forming is required (e.g., for manufacturing vessel heads), the heating temperature must not exceed 425°C. Furthermore, the material must pass rapidly through the brittle temperature range—approximately 475°C—during both heating and cooling phases. Rapid heating and cooling are essential; it is highly recommended to use an electric resistance furnace rather than a gas-fired furnace to prevent carbon pickup and contamination.
- Several Welding"Minefields"
If the client is engaged in equipment welding, here are a few recommendations:
Matching Filler Wire: It is best to use ERNiMo-10; this filler wire offers the closest match to the corrosion resistance properties of Alloy B-3.
Generous Groove Preparation: The molten metal fluidity of Alloy B-3 is inferior to that of stainless steel. Consequently, the groove angle must be wider than what is typically used for stainless steel welding; otherwise, incomplete penetration is likely to occur.
Thorough Cleaning: Prior to welding, it is imperative to completely remove any oil stains, paint, or even sulfur-containing marker pen marks from the Alloy B-3 material. These contaminants should be scrubbed away using acetone, as they are the primary culprits behind hot cracking and porosity.
Quality Assessment via Color: Upon completion of welding, the weld bead should appear silvery-white or pale yellow. If the weld takes on a blue or gray hue, it indicates inadequate shielding and severe oxidation, which will compromise the material's corrosion resistance.
