Hastelloy Tube | Complete Guide to Grade, Specification, Price, Selection and Application

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Hastelloy Tube | Complete Guide to Grade, Specification, Price, Selection, and Application

2026-07-22

Hastelloy pipeline is a high-performance nickel based alloy pipeline with super strong corrosion resistance and high temperature resistance. This alloy system has multiple mainstream grades, including Hastelloy C276, C22, B2, B3, X, N, B4, C4. Different grades are developed and customized for differentiated chemical corrosion conditions and high-temperature usage environments.

The three core advantages of Hastelloy materials are excellent corrosion resistance to oxidizing and reducing media; Stable and excellent mechanical strength under high temperature conditions; The welding performance is reliable and does not require post weld heat treatment. Commonly used in fields such as chemical engineering, petroleum and natural gas, aerospace, and pharmaceuticals, ordinary carbon steel and conventional stainless steel often experience corrosion failure in just a few months under such working conditions.

1、 Market price and influencing factors of Hastelloy tube

The unit price of Hastelloy pipeline is affected by the brand, outer diameter size, wall thickness specification, and total purchase quantity. By understanding the factors that affect the price in advance, it is possible to accurately plan the project budget.

Approximate price range

The original quotation for standard grade Hastelloy pipes is approximately RMB220-400 yuan/kgFor market reference only. The final transaction price of the pipeline is determined by the material grade, outer diameter, wall thickness grade, and purchase quantity.

The core factors affecting the price of Hastelloy alloy tubes

Brand and alloy composition
Hastelloy C276 and C22 contain a high proportion of molybdenum and chromium elements, with higher raw material costs than ordinary nickel based alloys and relatively higher market prices.
Wall thickness pressure rating
Thickened wall thickness specifications such as Sch 80S and Sch 160S consume more alloy raw materials per unit length of pipe, directly increasing the unit procurement cost.
manufacturing process
Seamless Hastelloy pipes are difficult to produce, have limited production capacity, require higher tooling investment, and are priced higher than welded Hastelloy pipes of the same specifications.
Fluctuations in the commodity market
Nickel and molybdenum are the core precious metal raw materials, and the raw material market directly affects the cost of pipes. Before making bulk purchases, it is recommended to refer to the London Metal Exchange (LME) metal quotes in real-time.

2、 Main grades of Hastelloy pipes

There are a total of 8 commonly used Hastelloy alloy pipes on the market

Hastelloy X pipe
Hastelloy N-tube
Hastelloy B4 pipe
Hastelloy B2 pipeline
Hastelloy C276 pipe
Hastelloy C22 pipe
Hastelloy B3 pipe
Hastelloy C4 pipeline

3、 Classification of Hastelloy Tube Products

According to the production process, the pipes are mainly divided into two categories, which have independent pressure rating standards, welding acceptance requirements, and processing characteristics:

Seamless Hastelloy Tube
Welded Hastelloy Tube

4、 Ha's alloy pipeline basic specification parameters

List of Basic Parameters

common grades
Hastelloy C276 (UNS N10276), C22 (N06022), B2 (N10665), Hastelloy X
execution standard
Seamless pipe: ASTM B622, ASME SB622
Welded pipes: ASTM B619/B626, ASME SB619/SB626
size range
Nominal diameter ranging from 1/8 inch to 24 inches; Outer diameter 6.0mm~609.6mm
Wall thickness specification
Sch 5S、10S、40S、80S、160S、XXS； Wall thickness range of 0.5mm to 25mm
Supply length
Single fixed length 6-7 meters, double fixed length 12-14 meters, and also supports customized length
product form
Seamless pipes, welded pipes (ERW/EFW), prefabricated fittings

Key indicators of C276 Hastelloy alloy

Chemical composition (mass percentage)
Nickel: Surplus, Molybdenum: 15-17, Chromium: 14.5-16.5, Iron: 4-7, Tungsten: 3-4.5, Cobalt: ≤ 2.5, Manganese: ≤ 1, Carbon: ≤ 0.01
mechanical properties
Minimum tensile strength 790MPa, minimum yield strength 355MPa, minimum elongation 40%, material density 8.89g/cm ³

5、 Hastelloy Pipe Size Table (NPS - Outer Diameter - Wall Thickness)

Nominal diameter NPS (inches)	Outer diameter OD (mm)	Sch 10S wall thickness (mm)	Sch 40S wall thickness (mm)	Sch 80S wall thickness (mm)	Sch 160S wall thickness (mm)
1/8	10.3	1.24	1.73	2.41	-
1/4	13.7	1.65	2.24	3.02	3.56
1/2	21.3	2.11	2.77	3.73	4.78
3/4	26.7	2.11	2.87	3.91	5.56
1	33.4	2.77	3.38	4.55	6.35
1 1/2	48.3	3.05	3.68	4.78	7.14
2	60.3	3.05	3.91	5.54	9.53
3	88.9	3.05	5.16	7.01	11.1
4	114.3	3.05	6.02	8.56	13.5
6	168.3	4.57	7.11	10.97	18.3
8	219.1	6.35	8.18	12.7	23.0
10	273.1	6.35	9.27	15.1	28.6
12	323.9	6.35	10.3	17.5	32.8

6、 Selection Instructions for Sch Wall Thickness Series of Hastelloy Tube

The wall thickness of the pipeline increases with the increase of Sch specification number, and the pressure bearing level synchronously increases. When selecting, match the corresponding wall thickness grade based on the on-site working pressure and medium temperature.

1/8 inch (0.405 "): SCH 40, 80

1/4 inch (0.540 "): SCH 10, 40, 80

3/8 inch (0.675 "): SCH 10, 40, 80

1/2 inch (0.840 "): SCH 5, 10, 40, 80, 160, XXH

3/4 inch (1.050 "): SCH 10, 40, 80, 160, XXH

1 inch (1.315 inches): SCH 5, 10, 40, 80, 160, XXH

1-1/4 inches (1.660 inches): SCH 10, 40, 80, 160, XXH

1-1/2 inches (1.900 inches): SCH 10, 40, 80, 160, XXH

2 inches (2.375 inches): SCH 10, 40, 80, 160, XXH

2-1/2 inches (2.875 inches): SCH 10, 40, 80, 160, XXH

3 inches (3.500 inches): SCH 5, 10, 40, 80, 160, XXH

3-1/2 inches (4.000 inches): SCH 10, 40, 80, 160, XXH

4 inches (4.500 inches): SCH 10, 40, 80, 160, XXH

5 inches (5.563 inches): SCH 10, 40, 80, 160, XXH

6 inches (6.625 inches): SCH 5, 10, 40, 80, 120, 160, XXH

8 inches (8.625 inches): SCH 5, 10, 40, 80, 120, 160, XXH

10 inches (10.750 inches): SCH 10, 20, 40, 80

12 inches (12.750 inches): SCH 10, 20, 40, 80

14 inches (14.000 inches): SCH 10, 40

16 inches (16.000 inches): SCH 10, 40

18 inches (18.000 inches): SCH 40

7、 Core characteristics of Hastelloy alloy pipeline

Hastelloy tubes are commonly used for harsh working conditions that carbon steel and ordinary austenitic stainless steel cannot handle. The core performance characteristics are:

Excellent corrosion resistance
Good high-temperature stability
High strength, long-lasting service life
Resistance to stress corrosion cracking
Excellent welding performance
Easy to process and shape
Outstanding antioxidant performance

8、 The mainstream application areas of Hastelloy tubes

Traditional pipes are prone to corrosion and failure in highly corrosive media, high pressure, and high temperature conditions. Hastelloy pipes are widely used in eight industries:

Chemical processing industry
Aerospace field
Petrochemical industry
Power generation industry
Marine Engineering Applications
Pharmaceutical production and manufacturing
Pulp and paper industry
Oil and gas projects

9、 How to Choose Reliable Hastelloy Tube Manufacturers and Suppliers

The strength of suppliers directly affects the quality of pipes, project duration, and overall procurement costs. Before determining a cooperative supplier, a comprehensive evaluation should be conducted from four dimensions.

1. Verify production and processing capabilities

Confirm that the manufacturer can stably produce the required precise grades and specifications of Hastelloy alloy pipes for the project. Not all metal processing plants have the production conditions for nickel based alloys. Before initiating an inquiry, verify the actual production qualifications and capacity of the manufacturer's Hastelloy C276 (UNS N10276), C22, and B2 pipes.

2. Key points for professional technical selection

Select appropriate grades based on the medium environment, distinguish between chloride ion working conditions, acidic media, and high-pressure and high-temperature scenarios. When purchasing, it is necessary to request a Material Test Certificate (MTC) to verify the chemical composition and mechanical properties. Seamless pipes have been confirmed to comply with ASTM B622, and welded pipes shall comply with ASTM B619 standard. The delivery cycle for customized special wall thickness pipes is generally 8-12 weeks, and spot inventory should be confirmed as early as possible in the early stage of the project.

3. Assess supplier qualifications and credibility

Regular suppliers of Hastelloy alloy pipes should provide furnace batch numbers for each batch of pipes, which can be traced back to the smelting steel plant and meet the requirements of engineering archiving and third-party quality inspection. Priority should be given to sourcing similar project supply cases from suppliers in the chemical, oil and gas, and pharmaceutical industries. Cases are an important basis for evaluating the strength of nickel alloy pipe suppliers.

4. Scientific procurement plan

Create a clear inquiry document indicating the material UNS number, nominal diameter, Sch wall thickness grade, surface treatment, implementation standards, and purchase quantity. Compare at least three suppliers and comprehensively consider the quotation, delivery time, warranty certificate, and minimum order quantity. It is recommended to arrange pre delivery inspection (PDI) or third-party testing (TPI) for large-scale procurement.