Hastelloy B-3 Pipe Spool (UNS N10675 / W.Nr. 2.4600)
High-strength corrosion-resistant alloy Pipe Spool for chemical and petrochemical processing
As a leading supplier of nickel-based superalloy custom pipe spools, SEATHER TECHNOLOGY specializes in the production of premium Hastelloy B-3 (UNS N10675) pipe spools engineered for exceptional corrosion resistance, high strength, and long-term reliability.
HASTELLOY® B-3® alloy (UNS N10675) is a high-performance nickel-molybdenum alloy designed for service in strong reducing environments. It exhibits outstanding resistance to hydrochloric acid, sulfuric acid, and other aggressive media, along with excellent thermal stability and structural integrity. These characteristics make Hastelloy B-3 flanges ideal for use in chemical processing, petrochemical, marine engineering, pharmaceutical, and other corrosive industrial applications.
Custom pipe spool fabrication is one of SEATHER’s core manufacturing capabilities. We fabricate complete stainless steel and nickel alloy piping systems—ranging from large industrial projects consisting of thousands of spools to routine maintenance jobs and single-spool orders.
Our production facilities are staffed with highly skilled craftsmen, pipe fitters, welders, and fabricators. Backed by strict quality control, advanced welding processes, and a proven record of safety and precision, we ensure every Hastelloy B-3 pipe spool meets international standards and project-specific requirements. SEATHER is committed to exceeding customer expectations in design accuracy, fabrication quality, delivery schedule, logistics, and cost efficiency.
Hastelloy B-3 Pipe Spool (UNS N10675) Specifications & Srtandard
| Product Name | Hastelloy Alloy B-3 Pipe Spools |
| Raw Materials | Alloy B-3, UNS N10675, Nickel Alloy B-3 |
| Size | 114mm to 2500mm Diameter (Seamless & Welded, Fabricated), Wall Thickness: 10s/3 mm to XXS/70 mm; Customized or according to your drawing |
| Samples | Sample available |
| Tolerance | +/-5mm to +/-0.005mm |
| Testing Equipment | CMM; Tool microscope; multi-joint arm; Automatic height gauge; Manual height gauge; Dial gauge; Marble platform; Roughness measurement |
| Logo | Custom logo available |
| Surface Treatment | Anodizing, Passivation, Polishing, Plating, Painting, Black Oxide, Powder Coating, Brushing, Heat Treatment, Surface Phosphating, Hot Dip Galvanizing, More Surface Treatment, etc. |
| Color | Silver, black, gold, red, green, blue, purple, etc |
| File Formats | UG, SolidWorks, Pro/E, AutoCAD (DXF, DWG), PDF, TIF, JPG, etc |
| Services | OEM/ODM, Engineering&Design Consulting, Assembly, Finishing, Materials Sourcing, Custom Packaging Services, etc |
| Quality System | ISO9001, SGS, TUV |
Hastelloy B-3 Pipe Spool (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
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 Pipe Spool (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 Pipe Spool (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 pipe Spool (UNS N10675)
When you choose to buy Hastelloy B-3 pipe Spool (UNS N10675), there have some important points we need to know before we get started.
Hastelloy B-3 Pipe Spool Features (UNS N10675)
- Superior Acid Resistance
- Enhanced Thermal Stability
- Corrosion Resistance
- Reduces Media Attack
- Fabrication Friendly
- Versatile Applications
How to Purchase Hastelloy B-3 Pipe Spool (UNS N10675)
When purchasing alloy pipe spools, 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, Alloy B-3 (UNS N10675)
2. Size: Specify the pipe’s Outer Diameter, Inner Diameter, Wall thickness, Length, Delivery State, finish, flanges types, etc.
3. Quantity: Provide the exact number of products 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 strips coils 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.
Looking For A Trust Hastelloy B-3 PIPE SPOOL Manufacturer?
Contact us today and we’ll put together a quote tailored to your needs.
