What types of corrosion is C276 alloy most resistant to?

It performs particularly well in the following environments: Wet chlorine, hypochlorite, and chlorine dioxide solutions; Sulfuric, hydrochloric, and hydrofluoric acids (especially at low to medium concentrations, in the presence of impurities, and at high temperatures); Phosphoric acid (at various concentrations and temperatures, including wet process acids with high impurities); Organic acids such as acetic and formic acids; Environments containing chlorides (such as seawater and brines) offer excellent resistance to pitting and crevice corrosion.

what is the difference between hastelloy c22 and c276?

Hastelloy C22 is an upgraded version of C276. Chemical Composition (Key Difference): C22 has a higher chromium (Cr) content (20-22.5%) and a slightly higher molybdenum (Mo) content (12.5-14.5%). C276 has a lower Cr content (14.5-16.5%) and a Mo content of 15-17%. Corrosion Resistance: C22 significantly outperforms C276 in pitting and crevice corrosion resistance in oxidizing media (such as hot Fe⁺, Cu⁺⁺ brines, and hypochlorites) and in the welded state. C22 also has a wider operating temperature range. Weldability : C22 offers improved weldability, exhibits less corrosion degradation in the heat-affected zone after welding, and is less prone to the precipitation of harmful phases.

Hastelloy C276 Pipe Suppliers

Gnee is a professional alloy C276 pipe supplier, provide ASTM standards Hastelloy C276 pipes, such as Hastelloy C276 seamless pipes, Hastelloy C276 welded pipes, etc. with precision processing, global shipping, and customized solutions for various industrial applications. Competitive pricing!

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UNS N10276 Material

High Temperature Alloy

ASTM B622 / B619 / B775 / B626

Hastelloy C276 Pipe

Rich Size & Shape

Round | ERW | Welded | Custom

One-Stop Service

Cut & Weld & Customize

Fast Global Shipping

Fast Delivery & Logistics

500 Tons in Stock

On-Time Delivery Guarantee

Hastelloy C276 Pipe Factory

Gnee manufactures high-quality Hastelloy C276 pipes. These pipes offer excellent corrosion resistance, making them particularly suitable for use in highly oxidizing and reducing environments. They are widely used in the chemical, environmental, and marine engineering sectors.

Our Hastelloy C276 pipes comply with international standards such as ASTM B622 and ASTM B619. We support a variety of custom specifications and offer value-added services such as cutting and welding. We offer competitively priced Hastelloy C276 seamless pipe and welded pipes. Inquiries are welcome!

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Rich Shapes	Hastelloy C276 seamless pipe, weld pipe, ERW pipe, EFW pipe, Customizable
Application	For chemical processing industry and petrochemical industry, oil and gas and energy industry, etc

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What Shapes Of Hastelloy C276 Pipe Can Gnee Supply?

We have a rich inventory of Hastelloy C276 pipes. We offer a wide range of sizes and specifications to meet your exact needs, from small-scale R&D to large project orders. Gnee is your reliable China Hastelloy C276 products manufacturer.

Hastelloy C276 Seamless Pipe
Hastelloy C276 Welded Pipe
Hastelloy C276 Round Pipe
Custom Hastelloy C276 Tube
Hastelloy C276 Square Pipe
Hastelloy C276 Rectangular Pipe
Hastelloy C276 ERW Pipe
Hastelloy C276 EFW Pipe

Description

Hastelloy C276 Pipe is a versatile and highly corrosion-resistant alloy pipe designed for extreme environments. Comprising a precise balance of nickel (57% min), molybdenum (15-17%), and chromium (14.5-16.5%), with iron and trace elements, it provides exceptional resistance to strong oxidizing and reducing agents. Unlike standard stainless steel pipes, Hastelloy C276 withstands aggressive chemicals, such as hydrochloric acid and chlorine gas, making it ideal for chemical processing, pollution control (scrubbers), and marine applications.

This alloy pipe, also known as UNS N10276 or Alloy C276, exhibits superior weldability with minimal carbide precipitation during welding, preventing localized corrosion. Its mechanical properties include a tensile strength of 100 ksi (690 MPa) and excellent ductility, accommodating both high-stress operations and severe thermal cycling. For example, in flue gas scrubbers, Hastelloy C276 pipes outperform 316 stainless steel by resisting pitting and crevice corrosion, even in chloride-laden environments. Available in seamless and welded forms, these pipes are customizable to meet specific operational demands, ensuring reliability in critical industries.

Hastelloy C276 Tube Product Parameters

Parameter	Specification
Material Grade	Hastelloy C276 (UNS N10276)
Size	Standard and custom size available
Standards	ASTM B622, ASTM B619, ASTM B775
Surface Finish	Annealed, Pickled, Polished
Form	Seamless, Welded, ERW, EFW
Applications	Chemical, Marine, Pollution Control

What ASTM standards of Hastelloy alloy C276 Pipe can Gnee produce?

Standard	Title
ASTM B622	Seamless Nickel and Nickel Alloy Pipe and Tube
ASTM B619	Welded Nickel and Nickel Alloy Pipe
ASTM B775	General Requirements for Welded Pipe
ASTM B626	Welded Nickel and Nickel Alloy Tube
ASTM B366	Fittings of Wrought Nickel and Nickel Alloy

Parameter Information

Chemical Parameters

Element	Nickel (Ni)	Copper (Cu)	Iron (Fe)	Manganese (Mn)	Carbon (C)	Silicon (Si)	Sulfur (S)
Percentage	63.0 min	28.0-34.0	2.5 max	2.0 max	0.3 max	0.5 max	0.03 max

Mechanical Properties

Property	Value	Unit
Tensile Strength	70,000 (min)	psi
Yield Strength	25,000 (min)	psi
Elongation	35 (min)	%
Hardness (Brinell)	135 (approx.)	HB

Physical Property

Property	Value	Unit
Density	8.8	g/cm³
Melting Point	1,350–1,400	°C
Thermal Conductivity	21.8	W/m·K
Electrical Resistivity	0.52	µΩ·m

Size Specification Of Hastelloy C276 Pipe

Size Chart Of Hastelloy C276 Seamless Pipes

NPS, inches	OD		Schedule Number	WT, inches	WT, mm	kg/m	lb/ft
	inches	mm
1/4	0.540	13.72	10S	0.065	1.65	0.50	0.34
1/4	0.540	13.72	40S	0.088	2.24	0.64	0.43
1/4	0.540	13.72	80S	0.119	3.02	0.81	0.54
1/2	0.840	21.34	10S	0.083	2.11	1.02	0.68
1/2	0.840	21.34	40S	0.109	2.77	1.29	0.87
1/2	0.840	21.34	80S	0.147	3.73	1.65	1.11
1	1.315	33.40	10S	0.109	2.77	2.13	1.43
1	1.315	33.40	40S	0.133	3.38	2.54	1.71
1	1.315	33.40	80S	0.179	4.55	3.29	2.21
2	2.375	60.33	10S	0.109	2.77	3.99	2.68
2	2.375	60.33	40S	0.154	3.91	5.52	3.70
2	2.375	60.33	80S	0.218	5.54	7.60	5.10
4	4.500	114.30	10S	0.120	3.05	8.50	5.71
4	4.500	114.30	40S	0.237	6.02	16.32	10.96
4	4.500	114.30	80S	0.337	8.56	22.67	15.22
6	6.625	168.28	10S	0.134	3.40	14.04	9.43
6	6.625	168.28	40S	0.280	7.11	28.69	19.26
6	6.625	168.28	80S	0.432	10.97	43.21	29.02
…	…	…	…	…	…	…	…
Range	1/4″ – 24″	6-610mm	SCH10-XXS	0.065″ – 2.0″	1.0-50mm	–	–

Size Chart Of Hastelloy C276 Welded Pipes

OD		WT
inches	mm	inches	mm
21.3	2.77		–
168	9.5		–
6.625 (6″)	168.3	0.28 (SCH 40)	7.11
5.0	139.7	0.197 (≈5mm)	5.0
6.625 (6″)	168.3	0.197 (≈5mm)	5.0
Range	21.3mm –		2.77mm-

Features and Applications

Features And Advantages Of Gnee Hastelloy C276 Pipes

Outstanding Corrosion Resistance

Exceptional resistance to a wide range of severe chemical environments, including oxidizing and reducing agents.
Effectively resists pitting, crevice corrosion, and stress corrosion cracking, even in chloride-rich conditions.

Excellent Material Composition

High nickel (57% min) and molybdenum (15-17%) content enhance resistance to hydrochloric acid, sulfuric acid, and phosphoric acid.
Chromium (14.5-16.5%) adds stability against oxidizing agents like ferric and cupric chlorides.

Versatility in Applications

Proven performance in aggressive environments such as chemical processing, flue gas desulfurization, and marine engineering.
Suitable for high-temperature environments up to 1,900°F (1,037°C).

Weldability and Fabrication

Exceptional weldability with low carbide precipitation during welding, maintaining corrosion resistance in heat-affected zones.
Easily fabricated into seamless or welded pipes, accommodating a variety of industrial needs.

High Mechanical Strength

Tensile strength of 100 ksi (690 MPa) and excellent ductility ensure durability under high stress and pressure.

Longevity and Reliability

Outlasts traditional stainless steel and other alloys in harsh chemical and marine environments, reducing maintenance costs and downtime.

Applications Of Hastelloy C276 Pipe

Chemical Processing: Handles aggressive chemicals like hydrochloric acid and chlorine in reactors, heat exchangers, and evaporators.
Flue Gas Desulfurization: Resists corrosion in scrubbers, ducts, and dampers exposed to sulfur oxides and chlorides.
Pharmaceutical and Food Processing: Ensures purity in handling corrosive cleaning agents and sterilization processes.
Marine Engineering: Withstands saltwater environments in piping systems, desalination plants, and offshore platforms.
Pulp and Paper Industry: Resists chemical attack in bleaching stages and chemical recovery systems.
Pollution Control: Ideal for wastewater treatment and emissions handling systems.

Why Choose hastelloy c276 Pipe from Gnee？

Gnee is a leading high-performance materials manufacturer and global supplier with nearly 20 years of experience in high-temperature alloys. We specialize in providing Hastelloy C276 pipes/tubes and a wide range of other nickel alloy products.

Leveraging a vertically integrated supply chain, we independently manufacture the entire process from vacuum melting to hot forging to solution treatment, reducing intermediate costs. We support custom specifications and offer complete material certification and customized delivery services.
We have established a solid market position in major international markets, including Europe, North America, the Middle East, and Southeast Asia. While maintaining quality, our Hastelloy C276 pipe products offer competitive pricing.

Gnee Alloys-nickel alloy Rich Grades For Sale

In addition to Hastelloy C276 pipe, we can also provide the following grades of nickel-based alloy pipes

Inconel Alloy Grades
Hastelloy Alloy Grades
Monel Alloy Grades
Incoloy Alloy Grades
Pure Nickel Grades

Inconel 617 (UNS N06617, EN 2.4663)
Inconel 693 (UNS N06693)
Inconel 738 (UNS N07738)

Hastelloy B (UNS N10001, EN 2.4617)
Hastelloy B-2 (UNS N10665, EN 2.4617)
Hastelloy B-3 (UNS N10675, EN 2.4600)

Hastelloy G-30 (UNS N06030, EN 2.4603)
Hastelloy G-35 (UNS N06035)
Hastelloy X (UNS N06002, EN 2.4665)

Monel 400 (UNS N04400, EN 2.4360)
Monel 401 (UNS N04401)
Monel 404 (UNS N04404)

Monel R-405 (UNS N04405)
Monel K-500 (UNS N05500, EN 2.4375)

Incoloy 825 (UNS N08825, EN 2.4858)
Incoloy 925 (UNS N09925)
Incoloy 926 (UNS N08926, EN 1.4529)

Incoloy 330 (UNS N08330, EN 1.4886)
Incoloy 25-6Mo (UNS N08926, EN 1.4529)

FAQ

Below are some frequently asked questions about Hastelloy C276. If you have any other questions, please feel free to contact us.

It performs particularly well in the following environments:

Wet chlorine, hypochlorite, and chlorine dioxide solutions;
Sulfuric, hydrochloric, and hydrofluoric acids (especially at low to medium concentrations, in the presence of impurities, and at high temperatures);
Phosphoric acid (at various concentrations and temperatures, including wet process acids with high impurities);
Organic acids such as acetic and formic acids;
Environments containing chlorides (such as seawater and brines) offer excellent resistance to pitting and crevice corrosion.

C276 has excellent weldability. Recommended welding methods:

Welding methods: Shielded Tungsten Inert Gas Welding (GTAW/TIG), Metal Inert Gas Welding (GMAW/MIG), and Stick Metal Arc Welding (SMAW).

Filler Material: Typically, ERNiCrMo-4 welding wire or ENiCrMo-4 welding rod, matched to the base metal composition, is used.

Key Points: Maintain low heat input and ensure adequate inert gas shielding (with back shielding gas if necessary) to prevent oxidation in the weld area and sensitization of the heat-affected zone.

The typical final heat treatment is solution annealing, which involves heating to around 1121°C followed by a rapid water quench. This dissolves any precipitated phases (such as μ phase) and restores the alloy to its most corrosion-resistant state. Stress relief heat treatment is strictly prohibited, as it may cause the precipitation of detrimental phases at grain boundaries, which in turn reduces corrosion resistance.

Normally nonmagnetic (non-magnetic).

Hastelloy C276 is an austenitic nickel-based alloy. Its crystal structure makes it completely nonmagnetic in the annealed (softened) state.

Exception: After cold working (e.g., bending, cutting), the surface or processed areas may become slightly magnetic, but the magnetism is very weak.

Hastelloy C22 is an upgraded version of C276.

Chemical Composition (Key Difference): C22 has a higher chromium (Cr) content (20-22.5%) and a slightly higher molybdenum (Mo) content (12.5-14.5%). C276 has a lower Cr content (14.5-16.5%) and a Mo content of 15-17%.
Corrosion Resistance: C22 significantly outperforms C276 in pitting and crevice corrosion resistance in oxidizing media (such as hot Fe⁺, Cu⁺⁺ brines, and hypochlorites) and in the welded state. C22 also has a wider operating temperature range.
Weldability: C22 offers improved weldability, exhibits less corrosion degradation in the heat-affected zone after welding, and is less prone to the precipitation of harmful phases.

Custom orders are welcome

Gnee, a trusted China-based nickel alloy manufacturer since 2008, delivers precision-engineered nickel alloy pipe solutions tailored to your industrial requirements. We offer fully customizable specifications including diameters (6mm to 2000mm), wall thickness (0.5mm to 50mm), and lengths (up to 18m), working with premium materials like Inconel®, Hastelloy®, and Monel®.

Our in-house metallurgists utilize advanced hot extrusion and cold drawing techniques to meet ASTM/ASME/DIN standards, complete with EN 10204 3.1 certification and full traceability. Partner with us for seamless customization from prototype to bulk production with 30-60 day lead times.

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Why Choose Gnee?

Rich Inventory

Nickel Alloy Inventory

Gnee maintains a rich inventory of high-performance nickel alloys, including Inconel, Incoloy, Hastelloy, Monel, and Stainless Steel Alloy grades. Our extensive stock ensures that we can meet the immediate needs of our customers, offering a wide range of sizes, forms, and specifications, from plates and bars to tubes and fittings. With quick access to critical materials, we minimize lead times and provide fast, reliable solutions

Inconel Alloy
Monel Alloy
Hastelloy Alloy
Nickel
Nimonic Alloy
Stainless Steel Alloy

Secure Packaging

Our export packaging complies with international standards for shipping and handling, ensuring the safe delivery of nickel alloys to various countries.

Common packaging methods

Pallet packaging: Plates and sheets are usually placed on pallets for added stability
Bundle packaging: Rods and tubes are often bundled together and secured with steel straps or high-strength straps
Crate packaging: Wooden crates offer good protection and stability
Foam protection packaging: Small accessories are often individually wrapped with foam
Reel packaging: Wire is usually rolled into a round reel and wrapped with anti-corrosion material

In addition, if you have special requirements for packaging methods, we provide customized services to meet your personalized needs. Whether it is additional protection measures or special packaging materials, we can adjust according to your specific requirements. Our goal is to ensure that your goods arrive at their destination safely and intact.

Special customized packaging

Size customization: Design special brackets or reinforcement materials for extra-long steel and special-shaped steel.
Environmentally friendly packaging: Use degradable or recyclable packaging materials to meet customers’ green environmental protection requirements.
Brand logo: Provide customers with packaging with company logos or special marks to facilitate brand identification and logistics management.
Special protection: Such as adding shock-proof cushions or built-in pressure-resistant brackets for packaging of precision steel or high value-added products.

export to 70+ countries

Gnee steel products have been exported to many countries and regions, including:

Asia: Such as Japan, India, South Korea, Singapore, Malaysia, Thailand
Middle East: Such as United Arab Emirates, Saudi Arabia, Qatar, Kuwait, Oman, Bahrain
Africa: Such as South Africa, Egypt, Nigeria, Kenya, Algeria, Morocco
America: Such as Canada, Mexico, Brazil, Argentina, Chile
Europe: Such as Germany, United Kingdom, France, Italy, Spain, Russia, Poland

No matter where the customer is located, Gnee can respond quickly with a complete logistics network.

Testing Services

We ensure the quality and performance of our nickel alloy products through the following testing services:

Chemical Composition Analysis
Mechanical Properties Testing
Hardness Testing
Non-Destructive Testing (NDT)
Dimensional Inspection
Visual Surface Inspection
Corrosion Resistance Evaluation
Test Report

Processing Services

We understand that every project has unique requirements. To support our customers, we offer a range of practical and efficient processing services for nickel alloy products, including:

Cutting Services: such as laser cutting, plasma cutting or water jet cutting, etc.
Sheet Metal Processing: such as stamping, bending, shearing
Welding Services: such as TIG welding, MIG welding, electron beam welding, etc.
Surface Treatment: such as polishing, electroplating, sandblasting, etc.
Heat Treatment: including annealing, quenching, tempering, etc.
Customized Processing: According to the specific needs of customers, we provide customized nickel alloy processing services, including customization in shape, size, thickness, etc.