Hastelloy Instrumentation Fittings

Hastelloy tube fittings are high-performance connection components machined from nickel-based superalloys, widely known across the industry by grade designations such as C276, C22, B2, and B3. The alloy composition ranges from 57 to 65% nickel with controlled additions of molybdenum (15–17%), chromium (14.5–16.5%), iron, cobalt, and tungsten, varying by grade. This composition delivers a tensile strength of 690–760 MPa and a yield strength of 283–310 MPa. What makes these fittings stand apart is the ability to withstand oxidising acids, reducing environments, pitting, crevice corrosion, and stress corrosion cracking simultaneously. Chemical plants, offshore platforms, pharmaceutical process lines, and marine piping systems specify Hastelloy tube fittings wherever standard stainless steel fails.

Hastelloy Tube Fittings Prices

The Hastelloy tube fittings price varies with alloy grade, fitting geometry, order size, and prevailing nickel market conditions.

Approximate Price Range

The price of Hastelloy tube fittings ranges between Rs 4,375 and Rs 7,500 per piece. Standard small-bore fittings in regular schedules sit closer to the base price. High-pressure configurations and larger OD fittings carry a premium.

Factors Affecting Price

5 key variables shape the final price of a Hastelloy tube fitting. Alloy grade is the first factor; C22 and B3 grades cost more than C276 due to their composition tolerances and higher molybdenum content. Size and wall schedule follow closely, as larger tube ODs and heavier schedules like Sch. 80 or Sch. 160 requires significantly more raw material per piece. Order volume is based on the buyer's bulk procurement through a reliable Hastelloy tube fittings supplier, which brings the per-unit cost down. Nickel prices on the London Metal Exchange (LME) set the raw material floor, and any spike there is reflected in finished fitting prices within weeks. Finally, add-ons such as Mill Test Reports (MTRs), third-party inspection, NACE MR0175 documentation, and special surface treatments are billed separately and stack onto the base price.

Hastelloy Tube Fitting Grades

Hastelloy tube fittings are available in 4 alloy grades. Each grade is selected based on the specific corrosion environment, pressure class, and temperature requirement of the application.

• Hastelloy C22 Tube Fittings
• Hastelloy B2 Tube Fittings
• Hastelloy B3 Tube Fittings
• Hastelloy C276 Tube Fittings

Types Of Hastelloy Tube Fittings

Hastelloy tube fittings are produced in 6 standard configurations to cover compression connections, flared joints, weld-end assemblies, and directional changes in piping systems.

• Compression Fittings
• Ferrule Tube Fittings
• Flared Pipe Fittings
• Stub Ends
• Elbows
• Reducers

Hastelloy Tube Fittings Specifications

The table below lists the complete technical specifications for Hastelloy tube fittings, covering material grades, applicable standards, pressure ratings, and service conditions.

Hastelloy Tube Fittings Size Chart

Hastelloy tube fittings are stocked from 1/8" to 2" in inch sizes and 3 mm to 50 mm in metric. The table maps each OD to its fitting form for quick selection.

Schedule Chart Of Hastelloy Tube Fittings

The schedule chart below maps each tube size to its outside diameter and the 4 available wall thickness schedules. Use this to match the pressure class to the correct fitting schedule.

Key Features Of Hastelloy Tube Fittings

Hastelloy tube fittings carry nine performance characteristics that set them apart from standard stainless steel or carbon steel fittings in aggressive service conditions.

• Corrosion Resistance
• High Strength
• Oxidation Resistance
• Durability
• Temperature Tolerance
• Versatility
• Ease of Installation
• Non-Magnetic Properties
• Weldability

Applications Of Hastelloy Tube Fittings

Hastelloy tube fittings are specified across 10 industries where fluid integrity, corrosion control, and sustained mechanical performance cannot be compromised.

• Chemical Processing
• Oil and Gas Pharmaceutical Industry
• Marine Applications
• Power Generation
• Aerospace
• Food and Beverage Processing
• Mining and Metallurgy
• Petrochemical Industry
• Water Treatment

How To Choose The Right Hastelloy Tube Fittings Supplier And Manufacturer?

Selecting the right Hastelloy tube fittings supplier directly affects delivery timelines, documentation quality, and total procurement cost. Evaluate each supplier across 4 areas before placing an order.

Selecting The Right Supplier And Manufacturer

Avoid a general fastener distributor and search for nickel alloy specialists. A qualified Hastelloy tube fittings supplier maintains ready stock, provides certified mill test reports (MTRs), and operates under ISO 9001 quality management standards. 

Technical Considerations

Check with the supplier that they have the correct grade, such as C276, C22, B2, or B3, as well as the required size range, pressure class (1000, 3000, 6000, or 10,000 psi), and connection type. All fittings must meet the ASTM B564 / ASME SB564 standard. Before ordering any offshore or instrumentation lines, make sure to request NACE MR0175 or ISO 15156 compliance documentation.

Evaluating Supplier Credibility

Quality control is verified by certifications like IBR, PED and Lloyd's Register. Make enquiries for these documents first. Do not use a supplier that is unable to provide any documentation to support critical piping applications. Ensure that there is dimensional and hardness test data for each lot.

Procurement Strategy

If you are ordering in bulk or for a project, make sure you choose suppliers who have a standard pricing policy, can adapt to your order volume requirements, and have clear delivery time agreements. Ask for hydrostatic test reports, dimensional inspection documents and packing details before dispatch. If time is critical, make sure to verify lead times and stock availability in writing.