Hastelloy B2 Pipes Manufacturer & Supplier
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Benefits of UNS N10675 Alloy B2 Seamless Pipe
- Excellent resistance to hydrochloric acid and other strong reducing agents.
- Smooth surface finish that allows easy cleaning and maintenance.
- UNS N10675 Alloy B2 Seamless shows superior weldability for fabrication projects.
- Great thermal stability at both low and high temperatures.
- Minimal carbide precipitation helps maintain corrosion resistance after welding.
- Supports longer service life in high-wear environments.
- Easy availability in custom lengths and pipe schedules.
Uses of UNS N10665 Seamless Pipes
Hastelloy B2 Seamless Pipes is used in industries that deal with strong reducing environments. In chemical processing plants, these pipes handle hydrochloric acid and other aggressive chemicals safely. In the pharmaceutical industry it support production systems where high purity and corrosion resistance are critical. Power generation industry utilize in heat exchangers and condensers exposed to hot fluids. They also applied in marine systems to handle brine and other corrosive solutions. In petrochemical units, hastelloy B2 seamless pipes are installed in reactors and piping systems to ensure smooth and safe operations.
Hastelloy B2 vs C276 Pipe
Both Hastelloy B2 and C276 pipes are corrosion-resistant, however they serve different purposes. Hastelloy B2 pipes perform best in strong reducing environments such as hydrochloric acid service whereas hastelloy c276 pipe provide resistance to oxidizing and reducing situations. B2 has a higher molybdenum content, making it more resistant to pitting and stress corrosion in reducing media, but it is less appropriate in oxidizing environments, where C276 excels. When choosing between Hastelloy B2 Pipes and C276, consider the chemical environment and ultimate application.
Specification of Hastelloy B2 Pipes
Seamless Pipe OD : ½″ NB – 12″ NB
Welded Pipe OD : ½″ NB – 24″ NB
EFW Pipe Size : 6″ NB – 24″ NB
ASTM B 622 ASME SB 622 / ASTM B 619 ASME SB 619
Seamless, ERW, Welded, Fabricated
Round, Square, Rectangular, Hydraulic Etc
Single Random, Double Random & Cut Length.
Plain End, Beveled End, Treaded
SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, SCH 80S, SCH60, SCH80, SCH120, SCH140, SCH160, SCH XXS, SCH XS
No. 2B – Mill finish / Matte finish, No. 4 – Brushed finish, No. 8 – Mirror finish, Bright Annealed – Smooth / Slightly reflective, Polished – Smooth / Enhanced corrosion resistance,Mirror – Highly reflective,
Types of Hastelloy B2 Pipes
Manufacturing Types
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Seamless PipeWeld-free, perfect for even strength and sizing precision.
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Welded PipeWelded from flat-rolled steel, widely used where economy and large sizes are required.
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ERW PipeElectric Resistance Welded (ERW) pipes provide neat, high quality weld seams and are ideal for medium-pressure applications.
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EFW PipeElectric Fusion Welded (EFW) pipes are welded by fusion welding, usually applied in larger diameters and high-demand processes.
Pipe Forms
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Round PipeThe most common shape for fluid and gas transport.
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Square PipeUsed in architectural and structural applications requiring angular profiles.
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Rectangular PipeProvides greater strength in load-bearing regions and flat structures.
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Hydraulic PipeDesigned to provide precise dimensional control for fluid systems under pressure.
Contact us today to discuss how Hastelloy B2 Pipes can benefit your application. Whether you need guidance in selecting the right pipes or have specific requirements, our team of experts is here to help you find the optimal solution.
Technical Details & Delivery Condition
| Alloy | Ni | C | Mo | Mn | Si | Fe | P | S | Co | Cr |
| Balance | 0.01 max | 17 – 19 | 1.0 max | 0.08 max | 4 – 7 | 0.04 max | 0.03 max | 2.5 max | 0.5 max |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| B2 | Psi – 70,000 , MPa – 483 | Psi – 30,000 , MPa – 207 | 35 | – | – |
| Grade | Ni | C | Mo | Mn | Si | Fe | P | S | Co | Cr |
| Balance | 0.02 max | 16 – 18 | 1.0 max | 0.08 max | 2.0 max | 0.03 max | 0.02 max | – | 0.5 max |
Hastelloy Pipes Grades We Offer
Hastelloy B2 Pipe Dimensions
| Nominal Pipe Size (NPS) | Outside Diameter (OD) | Schedule 40 Wall Thickness | Schedule 80 Wall Thickness |
| 1/2″ | 21.34 mm | 2.77 mm | 3.73 mm |
| 3/4″ | 26.67 mm | 2.87 mm | 3.91 mm |
| 1″ | 33.40 mm | 3.38 mm | 4.55 mm |
| 1 1/4″ | 42.16 mm | 3.56 mm | 4.85 mm |
| 1 1/2″ | 48.26 mm | 3.68 mm | 5.08 mm |
| 2″ | 60.33 mm | 3.91 mm | 5.54 mm |
| 2 1/2″ | 73.03 mm | 5.16 mm | 7.01 mm |
| 3″ | 88.90 mm | 5.49 mm | 7.62 mm |
| 4″ | 114.30 mm | 6.02 mm | 8.56 mm |
| 6″ | 168.28 mm | 7.11 mm | 10.97 mm |
| 8″ | 219.08 mm | 8.18 mm | 12.70 mm |
| 10″ | 273.05 mm | 9.27 mm | 12.70 mm |
| 12″ | 323.85 mm | 9.53 mm | 12.70 mm |
Hastelloy B2 Pipe Thickness Chart
| Nominal Pipe Size (NPS) | Outside Diameter (OD) | Schedule 5S (mm) | Schedule 10S (mm) | Schedule 40S (mm) | Schedule 80S (mm) |
| 1/2″ | 21.34 mm | 1.65 | 2.11 | 2.77 | 3.73 |
| 3/4″ | 26.67 mm | 1.65 | 2.11 | 2.87 | 3.91 |
| 1″ | 33.40 mm | 1.65 | 2.77 | 3.38 | 4.55 |
| 1 1/2″ | 48.26 mm | 1.65 | 2.77 | 3.68 | 5.08 |
| 2″ | 60.33 mm | 1.65 | 2.77 | 3.91 | 5.54 |
| 3″ | 88.90 mm | 1.65 | 3.05 | 5.49 | 7.62 |
| 4″ | 114.30 mm | 1.65 | 3.05 | 6.02 | 8.56 |
| 6″ | 168.28 mm | 2.11 | 3.40 | 7.11 | 10.97 |
| 8″ | 219.08 mm | 2.11 | 3.76 | 8.18 | 12.70 |
| 10″ | 273.05 mm | 2.77 | 4.19 | 9.27 | 12.70 |
| 12″ | 323.85 mm | 2.77 | 4.57 | 9.53 | 12.70 |
Manufacturing Process of Hastelloy B2 Pipes
Round Bar
Analytic
Cut to Length
Centering
Heating
Perforation
Inspection of Size
Pickling
Inspection of Surface
Lubricating
Cold Drawing (Cold Rolling)
Degreasing
Annealing
Straightening
Cut
Pickling / Passivating
Inspection
Analytic
Marking
Packing & Shipping
Applications of Hastelloy B2 Pipes
Why Choose Midland Alloys Inc. for Hastelloy B2 Pipes
Frequently Asked Questions About Hastelloy B2 Pipes
Yes, Hastelloy B2 can resist temperatures up to about 870°C. Its performance remains strong under thermal cycling and stress conditions. It is ideal for systems handling both hot and corrosive fluids without losing mechanical strength.
Hastelloy B2 performs better in strong reducing environments compared to many nickel-based alloys. Unlike alloys with higher chromium, B2 avoids localized corrosion in hydrochloric acid service. It is not as versatile as C276 in mixed oxidizing and reducing conditions, but it delivers high resistance in reducing media.
