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    sales@tubotechalloys.com
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    Pathan Durgadevi Udyan, Ground Floor, 25 Plot No 74/80, Patra Chawl, Maruti , Mandir Marg, Second Street, Girgaon, Mumbai, Maharashtra 400004

Hastelloy Fasteners

Introduction

Do you want ‘High-Performance’ Hastelloy Fasteners that can withstand hostile environments for your piping and tubing business? If ‘Yes’ then, you must contact us at Tubotech, a top piping and manufacturing company in India today. Since, we specifically engineer our fastening components to deliver for your business ‘High’ corrosion resistance. 

More importantly, we have manufactured high-quality Hastelloy Fasteners for your business using a high-quality ‘Alloy’ containing ‘Nickel’. A major ‘Reason’ you can use them in a piping system for withstanding any type of ‘Condition’. For example, high temperature and pressure. 

We at Tubotech, a leading piping and manufacturing company in India focus on supplying a wide range of Hastelloy fasteners grades depending on quality. They include Hastelloy C22, C276, B2, and X.  Our major goal is to offer you fastener solutions precisely tailored as per your business requirement. Above all, we seek to deliver Hastelloy Fasteners that offer your piping system that can withstand an extreme environment and prove its ‘Durability’ in the long-term.

Specifications of Hastelloy Fasteners :

There are several specifications of Hastelloy Fasteners that you need to understand before you look to purchase. They are given below:

Property Details
Material Grades Hastelloy C276, C22, B2, X, G30
UNS Designations C276 (UNS N10276), C22 (UNS N06022), B2 (UNS N10665), X (UNS N06002)
Standards ASTM B574, B575, B622, B619, B366; ASME SB575, SB574
Sizes Available M3 to M56 (Metric) / 3/16″ to 2″ (Inch)
Types Hex Bolts, Studs, Nuts, Socket Screws, Washers, Threaded Rods
Thread Types Metric (Coarse & Fine), UNC, UNF
Tensile Strength 690–825 MPa (varies by grade)
Yield Strength 280–355 MPa
Hardness Up to 240 HB (depending on condition)
Density ~8.9 g/cm³ (varies by grade)
Melting Range ~1325°C to 1370°C (2417°F to 2500°F)
Corrosion Resistance Excellent – especially against chlorides, acids, and oxidizing agents
Temperature Range Cryogenic to ~1100°C (~2000°F) depending on grade
Magnetic Properties Non-magnetic
Finish Options Plain, Passivated, Electropolished, Coated (e.g. PTFE)
Certifications EN 10204 3.1 / 3.2, NACE MR0175, ISO 9001:2015, PED compliant

Chemical Composition of Hastelloy Fasteners :

Do you know ‘Why’ Hastelloy Fasteners prove to be strong and durable components for a piping system? If yes then you need to read the table given below containing chemical contents of the Hastelloy Fasteners.

Element C276 (UNS N10276) C22 (UNS N06022) B2 (UNS N10665) X (UNS N06002) Function
Nickel (Ni) 57.0 min Balance Balance 47.0 – 61.0 Base element for corrosion resistance
Molybdenum (Mo) 15.0 – 17.0 12.5 – 14.5 26.0 – 30.0 14.0 – 17.0 Enhances pitting and crevice corrosion resistance
Chromium (Cr) 14.5 – 16.5 20.0 – 22.5 0.2 max 20.5 – 23.0 Provides oxidation and acid resistance
Iron (Fe) 4.0 – 7.0 2.0 – 6.0 2.0 max 17.0 – 20.0 Improves mechanical strength
Cobalt (Co) 2.5 max 2.5 max 1.0 max 1.0 max Impurity control
Tungsten (W) 3.0 – 4.5 2.5 – 3.5 Increases strength and corrosion resistance
Carbon (C) 0.010 max 0.015 max 0.02 max 0.05 – 0.15 Low carbon prevents carbide precipitation
Silicon (Si) 0.08 max 0.08 max 0.10 max 1.0 max Deoxidizer
Manganese (Mn) 1.0 max 0.50 max 1.0 max 1.0 max Improves hot workability
Vanadium (V) 0.20 – 0.40 Grain refinement
Phosphorus (P) 0.04 max 0.02 max 0.04 max 0.04 max Controlled impurity
Sulfur (S) 0.03 max 0.02 max 0.03 max 0.03 max Controlled impurity

Mechanical Properties of Hastelloy Fasteners :

There are few mechanical properties of Hastelloy Fasteners which makes them a strong and efficient component for ANY piping system. They are given in the table below:

Element C276 (UNS N10276) C22 (UNS N06022) B2 (UNS N10665) X (UNS N06002) Function
Nickel (Ni) 57.0 min Balance Balance 47.0 – 61.0 Base element for corrosion resistance
Molybdenum (Mo) 15.0 – 17.0 12.5 – 14.5 26.0 – 30.0 14.0 – 17.0 Enhances pitting and crevice corrosion resistance
Chromium (Cr) 14.5 – 16.5 20.0 – 22.5 0.2 max 20.5 – 23.0 Provides oxidation and acid resistance
Iron (Fe) 4.0 – 7.0 2.0 – 6.0 2.0 max 17.0 – 20.0 Improves mechanical strength
Cobalt (Co) 2.5 max 2.5 max 1.0 max 1.0 max Impurity control
Tungsten (W) 3.0 – 4.5 2.5 – 3.5 Increases strength and corrosion resistance
Carbon (C) 0.010 max 0.015 max 0.02 max 0.05 – 0.15 Low carbon prevents carbide precipitation
Silicon (Si) 0.08 max 0.08 max 0.10 max 1.0 max Deoxidizer
Manganese (Mn) 1.0 max 0.50 max 1.0 max 1.0 max Improves hot workability
Vanadium (V) 0.20 – 0.40 Grain refinement
Phosphorus (P) 0.04 max 0.02 max 0.04 max 0.04 max Controlled impurity
Sulfur (S) 0.03 max 0.02 max 0.03 max 0.03 max Controlled impurity

Pathan Durgadevi Udyan, Ground Floor, 25 Plot No 74/80, Patra Chawl, Maruti , Mandir Marg, Second Street, Girgaon, Mumbai, Maharashtra 400004

These fittings are crucial in ensuring smooth, dependable, and ordinary fluid and gas waft at some stage in various high-stakes programs.

Types of Hastelloy Fasteners :

Typically, Hastelloy Fasteners are available in various types and subtypes. They are given below in the form of a list:

1. Bolts:

  • Heavy Hex Bolts
  • Hex Head Bolts
  • Carriage Bolts
  • Socket Head Cap Screws
  • Shoulder Bolts
  • Flange Bolts
  • J-Bolts
  • U-Bolts
  • Eye Bolts

2. Screws:

  • Self-Tapping Screws
  • Machine Screws
  • Pan Head Screws
  • Socket Set Screws
  • Countersunk Screws
  • Flat Head Screws
  • Wood Screws

3. Nuts:

  • Heavy Hex Nuts
  • Hex Nuts
  • Nylock Nuts
  • Lock Nuts
  • Dome (Cap) Nuts
  • Wing Nuts
  • Flange Nuts
  • Coupling Nuts

4. Washers:

  • Spring Washers
  • Plain Flat Washers
  • Belleville Washers
  • Lock Washers
  • Tooth Lock Washers
  • Tab Washers

5. Studs & Rods:

  • Double-Ended Studs
  • Fully Threaded Studs
  • Continuous Threaded Rods (Threaded Bars)
  • Tap End Studs

6. Custom / Special fasteners:

  • fasteners per drawing or specification
  • CNC-Machined Components
  • Coated or passivated Hastelloy fasteners (e.g., PTFE-coated)

Sizes of Hastelloy Fasteners :

It is depending on the ‘Types’ of Hastelloy Fasteners that there are different ‘Sizes’ available. They are given in table form below:

1. Bolts, Screws, Studs:

Metric Sizes (Dia) M3 to M56
Imperial Sizes (Dia) 3/16″ to 2″
Length Range 6 mm to 300 mm (¼” to 12″)
Threads Metric (Coarse & Fine), UNC, UNF, UN8–UN24

2. Nuts:

Metric Sizes (Dia) M3 to M56
Imperial Sizes (Dia) 3/16″ to 2″
Height Options Standard, Thin (Jam Nuts), Heavy Hex

3. Washers:

Outer Diameter (OD) 6 mm to 100 mm (¼” to 4″)
Thickness Range 0.5 mm to 5 mm (Custom available)

4. Threaded Rods (Studs):

Diameter M6 to M48 / ¼” to 1-1/2″
Length Up to 3 meters (10 ft), longer on request

Weight Charts of Hastelloy Fasteners :

Usually, the weight of Hastelloy Fasteners will depend on a couple of major factors, which includes density of about 8.9 g/cm³, dimensions, and types. They are given in table below:

a. Hex Bolts (Full Thread):

Bolt Size Length (mm) Approx. Weight (grams)
M6 20 mm 7.5 g
M8 30 mm 17 g
M10 40 mm 33 g
M12 50 mm 56 g
M16 60 mm 113 g
M20 80 mm 205 g
M24 100 mm 340 g

b. Hex Nuts:

Nut Size Approx. Weight (grams)
M6 2.5 g
M8 5.2 g
M10 10 g
M12 17.5 g
M16 34 g
M20 56 g
M24 82 g

c. Flat Washers:

Washer Size Approx. Weight (grams)
M6 1.5 g
M8 2.8 g
M10 4.7 g
M12 6.5 g
M16 10.8 g
M20 17.6 g

Application of Hastelloy Fasteners :

It is because of ‘Durability’ that Hastelloy Fasteners are used in a wide range of industries. They are given below:

  • Marine & Offshore Engineering
  • Power Generation
  • Pharmaceutical & Food Processing
  • Pulp & Paper Industry
  • Aerospace & Defense

Why choose Tubotech for Hastelloy Fasteners ?

We at Tubotech, a leading piping and manufacturing company in India offer you performance-driven fastening solutions. However, there are other reasons why you must choose Hastelloy fasteners from us. They are given below:

  • Use of premium raw materials
  • Provision of customisation
  • Quality assurance certification
  • Usage of Precision Engineering
  • Expertise Technical Support

Contact Us To Get a Quote

Choose Tubotech for your subsequent project concerning Hastelloy Fasteners and benefit from reliability and quality. Whether your requirement is small batch or bulk export, our technical institution is here to help you.