Hastelloy C22 Fasteners

Hastelloy C22 Equivalent Grades

AISI 4130 Bolts

Boltport is a manufacturer and supplier of high quality Hastelloy C22 Fasteners with great precision and intergrity. We produce hastelloy C22 bolts, screws, stud bolts, threaded rods, nuts, washers, dowel pins and custom bolting components. Hastelloy C22 fasteners are critical piping components in many industrial sectors. Due to critical nature of hastelloy C22 application, Boltport uses only fresh bar stock from European, American, Japanese & Korean mills. These fasteners are manufactured with complete material and dimensional compliance to latest industry specifications. Alloy C22 fasteners are available in metric and imperial sizes with ISO, UN, UNC, UNF, UNEF, BSW & BSF threads.

Hastelloy C22 is commonly used in forms of hex bolts, heavy hex bolts, full threaded stud bolts, double end studs, socket head cap screws, set screws, hex, heavy hex nuts, square nuts, plain and spring lock washers, etc. Hastelloy C22 is used for bolting pipeline components, process equipments and instruments in projects associated with chemical and petrochemical processing, power generation, pharmaceuticals, oil & gas extraction and metal/mineral processing fields.

About Hastelloy® C22

Hastelloy C22, also known as alloy C22, is a versatile austenitic nickel-chromium-molybdenum-tungsten alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking. The high chromium content provides good resistance to oxidizing media while the molybdenum and tungsten content give good resistance to reducing media. Hastelloy C22 alloy also has excellent resistance to oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chlorine ions. Other corrosives Hastelloy C-22 has resistance to are oxidizing acid chlorides, wet chlorine, formic and acetic acids, ferric and cupric chlorides, seawater, brine and many mixed or contaminated chemical solutions, both organic and inorganic. This nickel alloy also offers optimum resistance to environments where reducing and oxidizing conditions are encountered in process streams. This is beneficial in multi- purpose plants where such "upsetting" conditions occur frequently.

This nickel alloy resists the formation of grain-boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in the as-welded condition. Alloy C-22 should not be used in service temperatures above 1250° F due to the formation of detrimental phases which form above this temperature.

Boltport manufactures every grade fasteners under strict specification following company's stringent quality policy leaving no room for error. We produce all types of fasteners in hastelloy c22 ranging from typicall hex bolts, heavy hex bolts, socket head cap screws, grub screws, nuts, washers and even customized bolting parts, as per drawing.

Hastelloy C22 Fasteners

  • Hastelloy C22 Bolts
  • Hastelloy C22 Screws
  • Hastelloy C22 Stud Bolts
    Stud Bolts
  • Hastelloy C22 Threaded Rods
    Threaded Rods
  • Hastelloy C22 Nuts
  • Hastelloy C22 Washers
  • Hastelloy C22 Accessories
  • Hastelloy C22 Components

Hastelloy C22 Properties

Hastelloy C22 Chemical Composition

Nickel Iron Chromium Cobalt Molybdenum Tungsten Carbon Silicon Manganese Phosphorus Sulphur
Balance 17.0-20.0% 20.5-23.0% 0.50-2.50% 8.00-10.0% 0.20-1.00% 0.05-0.15% 1.00% max 1.00% max 0.04% max 0.03% max

Hastelloy C22 Mechanical Properties

Tensile Strength Yield Strength Elongation at break Hardness, Brinell
660 MPa 240 MPa 35% ...

Specification for Hastelloy C22 Fasteners

Specification Grade Products
ASTM B462 Hastelloy C22/UNS N06022 Bolts, Screws, Stud Bolts, Nuts, Forged Components
ASTM B564 Hastelloy C22/UNS N06022 Bolts, Screws, Stud Bolts, Nuts, Forged Components
ASTM B574 Hastelloy C22/UNS N06022 Bolts, Screws, Stud Bolts, Nuts, Bar Components
ASTM B575 Hastelloy C22/UNS N06022 Washers, Sheet Metal Components

Applications for Hastelloy C22 Fasteners

Automotives Railways Structurals
Shipbuilding & Repairs Marine & Offshore Power Industry
Chemical Processing