Hastelloy B2 Pipes Manufacturer & Supplier

Midland Alloys is a trusted hastelloy B2 pipes supplier, supplying high-quality tubing that meet stringent global standards. Our Hastelloy B2 pipe is noted for its outstanding resistance to reducing conditions and high endurance in demanding applications. These pipes provide durable performance due to their chemical makeup of Ni, Mo, Fe, C, Mn, Si, S, Cr, P and Co. Pipes meet ASTM B622, B619 / ASME SB622, SB619 standards, with both seamless and welded alternatives. Our Hastelloy B2 Pipes Specification meets all of your needs with sizes ranging from 1/2 inch to 24 inch NB, outer diameters ranging from 6.00 mm to 914.4 mm, and thickness schedules such as SCH10, SCH 40, SCH 80 and SCH XXS. Available Hastelloy B2 pipe types, include seamless, welded, ERW, CDW, and fabricated. Welded with pipe ends that are plain, beveled, or threaded. Our comprehensive Hastelloy B2 Pipe Schedule makes it easy for companies to identify the ideal solution for their needs.

Benefits of UNS N10675 Alloy B2 Seamless Pipe

Our UNS N10675 Alloy B2 Seamless pipes are designed to meet critical industrial requirements. These pipes provide reliability and durability even in aggressive operating conditions.

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

Types of Hastelloy B2 Pipes

Manufacturing Types

Seamless Pipe

Weld-free, perfect for even strength and sizing precision.
Welded Pipe

Welded from flat-rolled steel, widely used where economy and large sizes are required.
ERW Pipe

Electric Resistance Welded (ERW) pipes provide neat, high quality weld seams and are ideal for medium-pressure applications.
EFW Pipe

Electric Fusion Welded (EFW) pipes are welded by fusion welding, usually applied in larger diameters and high-demand processes.

Pipe Forms

Round Pipe

The most common shape for fluid and gas transport.
Square Pipe

Used in architectural and structural applications requiring angular profiles.
Rectangular Pipe

Provides greater strength in load-bearing regions and flat structures.
Hydraulic Pipe

Designed to provide precise dimensional control for fluid systems under pressure.

Contact Midland Alloys Inc. for Your Hastelloy B2 Pipes Needs

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

Hastelloy B2 Pipes Chemical Composition

Alloy	Ni	C	Mo	Mn	Si	Fe	P	S	Co	Cr
Alloy	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

Hastelloy B2 Pipes Mechanical Properties

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	–	–

Hastelloy B2 Pipes Equivalent Grade

Grade	Ni	C	Mo	Mn	Si	Fe	P	S	Co	Cr
Grade	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 Pipes

Hastelloy C22 Pipes

Hastelloy C276 Pipes

Hastelloy B2 Pipes

Pipe Dimensions

Thickness Chart

Pipe Dimensions

Thickness Chart

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

Offshore Industry

Nuclear Industries

Refineries

Ship Building

Aerospace

Pharmaceutical

Why Choose Midland Alloys Inc. for Hastelloy B2 Pipes

Midland Alloys Inc. is a hastelloy B2 pipes supplier trusted for quality and reliability. We follow international standards backed by ISO 9001:2015, PED 2014/68/EU, and EN 10204 3.1/3.2 Mill Test Certificates. We conduct third-party inspections (TPI) by TÜV, BV, SGS, and DNV, ensuring full transparency. We partner with engineering firms, EPC contractors, marine operators, and chemical plants to understand the critical needs of each sector. Every UNS N10675 Alloy B2 Seamless pipe go through in-house and third-party testing including hydrostatic, ultrasonic, radiographic, and positive material identification checks. We also carry out tensile, hardness, flattening, and bend tests when required. Our proven track record for on-time delivery, strong client support, and knowledge of export compliance has built trust with clients across the Middle East, Europe, and Southeast Asia.

Frequently Asked Questions About Hastelloy B2 Pipes

What is the temperature resistance of Hastelloy B2?

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.

How does Hastelloy B2 compare to other alloys?

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.

Products Categories

ISO Certificate

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

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