Hastelloy B-3 Plate (UNS N10675 / W.Nr. 2.4600)
High-strength corrosion-resistant alloy Plates for chemical and petrochemical processing
As a professional superalloy supplier, SEATHER TECHNOLOGY manufactures and supplies high-quality Hastelloy B-3 plate with excellent corrosion resistance and reliable performance in severe reducing environments.
HASTELLOY® B-3® alloy (UNS N10675) is a nickel-molybdenum alloy specifically optimized for service in strong reducing media, including hydrochloric acid, sulfuric acid, phosphoric acid, and other aggressive chemical environments. Compared with earlier B-series alloys, Hastelloy B-3 offers improved metallurgical stability and superior resistance to localized corrosion, making it an ideal material for critical chemical processing applications.
Key Performance Advantages of Hastelloy B-3 Plate
Outstanding resistance to hydrochloric acid corrosion
Hastelloy B-3 plate maintains excellent corrosion resistance even in high-temperature and high-concentration hydrochloric acid, effectively preventing pitting corrosion and stress corrosion cracking.
Excellent resistance to localized and weld corrosion
The optimized chemical composition significantly reduces the risk of intergranular corrosion and heat-affected zone corrosion, extending equipment service life and improving fabrication reliability.
High-temperature stability in reducing atmospheres
Hastelloy B-3 plate retains good mechanical properties and corrosion resistance in high-temperature reducing environments, making it suitable for harsh industrial conditions.
Precision Processing & Custom Plate Services
SEATHER understands that different applications require precise plate sizes and shapes. We therefore provide high-precision cutting services to ensure each Hastelloy B-3 plate perfectly matches your project requirements. Available cutting methods include laser cutting, water jet cutting, and plasma cutting, delivering smooth edges while minimizing material waste.
We support both standard specifications and fully customized plate sizes or special shapes, helping customers shorten production cycles and improve manufacturing efficiency. Strict quality control ensures that all cut plates are smooth, burr-free, and ready for welding or further processing.
With its exceptional corrosion resistance, structural stability, and processing flexibility, Hastelloy B-3 plate is widely used in chemical reactors, acid storage and handling equipment, heat exchangers, and other highly corrosive environments.
Hastelloy B-3 Plate(UNS N10675) Specifications & Srtandard
- Thickness Range: 2.5mm ~ 50mm (For thickness < 2.5mm, please refer to Hastelloy B-3 nickel alloy sheet)
- Width Range: 50mm ~ 2000mm
- Length: 100mm ~ 6000mm
- Customized size needs to be confirmed with our team
- Grades: B-3/ UNS N10675 / W.Nr. 2.4600
- Standards: ASTM B333
- Delivery State: Hot Rolled
- Finish: No.1, 1D, Pickled or as per demand
- Brand: SEATHER TECHNOLOGY, Special Metals(SMC), HAYNES International, VDM Metals, ATI, etc.
Hastelloy B-3 Plate (UNS N10675) Applications & Usages
Hastelloy B-3 alloy can be used in a variety of applications including:
- The production and processing of many concentrated acids
- Mechanical components and vacuum furnaces
- Chemical processing
Hastelloy B-3 Plate (UNS N10675) Drawing & Formula
Formula: m = W (m) × THK (mm) × L (m) × ρ (g/cm³)
W = Width, THK = Thickness, L = Length, ρ = Density
What is Hastelloy B-3 (UNS N10675)
Alloy B-3 also referred to as the UNS N10675/W.Nr. 2.4600 alloy.
Alloy B-3 is similar to alloy B-2 in terms of resistance to non oxidizing agents, resistance to stress corrosion & pittings, non formation of grain boundry.
Like other nickel alloys (in the mill annealed condition), it is ductile, can be formed and welded, and resists stress corrosion cracking in chloride-bearing solutions.
Also, it is able to withstand fluoride-bearing media and concentrated sulfuric acid, both of which result in damage to zirconium alloys.
Alloy B-3 is widely used in numerous chemical process industry, especially in the construction of reaction vessels for pure, reducing acid service.
B-3 alloy is available in the form of plates, sheets, strips, billets, bars, wires, pipes, tubes, and coated electrodes.
Hastelloy B-3 Plate (UNS N10675) Chemical Composition
| Grade | Standard | C | Si | Mn | Mo | Co | Cr | Ni | Ti |
| Hastelloy B-3 | ASTM | ≤0.01 | ≤0.10 | ≤3.00 | 27.0-32.0 | ≤3.0 | 1.0-3.0 | ≥65 | ≤0.20 |
Hastelloy B-3 Plate (UNS N10675) Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 9.22 g/cm3 | 1418°C (2585 °F) | 680Mpa | 270Mpa | Min 53 |

Metal Cutting Service
Custom Metal Cutting Services For Diverse Industries

CNC Machining Services
Custom CNC machining parts in nickel alloy and stainless steel delivery in as fast as 3 days

Sheet Metal Fabrication
SEATHER’s custom sheet metal fabrication services offer a fast and cost-effective solution for your projects.

Metal Welding Service
Seather provides some of the best solutions ranging from custom metal welding and related services.
More Information About Hastelloy B-3 plate (UNS N10675)
When you choose to buy Hastelloy B-3 plate (UNS N10675), there have some important points we need to know before we get started.
Hastelloy B-3 plate Features (UNS N10675)
- Superior Acid Resistance
- Enhanced Thermal Stability
- Corrosion Resistance
- Reduces Media Attack
- Fabrication Friendly
- Versatile Applications
How to Purchase Hastelloy B-3 Plate (UNS N10675)
When purchasing plates, it’s essential to have the right materials and information to ensure a smooth procurement process and to get the products that meet your needs.
Here’s what you need to provide:
1. Material: Specify the grade material, Hastelloy B-3 (UNS N10675)
2. Size: Specify the plate’s thickness, width, length
3. Quantity: Provide the exact number of plates required for an accurate quotation.
4. Technical specifications: Include technical specifications and drawings. If there are unique design requirements, detailed drawings can be attached.
5. Quality standards: Specify quality standards and inspection requirements, such as the need for third-party inspection, material certification, and inspection reports.
6. Special requirements: Specify any special surface treatment, polishing, corrosion resistance requirements, etc.
7. Packaging requirements: If there are specific packaging needs, such as protective or anti-corrosion packaging, please specify.
8. Delivery time: Specify the expected delivery time and location.
By preparing the above information, you can streamline the process of purchasing plates and ensure that you receive high-quality products that meet your requirements.
Conclusion
We have introduced our products briefly. If you want to know more about it, you can check the article here Hastelloy Alloy B-3: Composition, Properties and Applications.
If you need to purchase alloy B-3 products, please get in touch with us immediately.
Trademark Notices:
Inconel®, Incoloy®, and Monel® are registered trademarks of Special Metals Corporation.
Hastelloy® is a registered trademark name of Haynes International, Inc.
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