ASTM B574 · ASTM F468 · UNS N06022

Hastelloy C22 resists pitting even in wet chlorine and oxidizing acids, better than C276 in some conditions. Oshwin Overseas has earned a name as a reliable Hastelloy C22 Bolts manufacturer in India. It supplies flue gas desulfurization and chemical plants across UAE, Germany, USA and Vietnam. Alloy C22 hex bolts, threaded rod, stud bolts and washers are made to ASTM B574, UNS N06022. Each order is checked for size and material before it leaves the Mumbai plant.

Dual-Acid Resistance

Rated for wet chlorine, nitric acid and reducing-acid service alike.

#10-24 to 3/8-16 UNC

Fine-thread precision sizes stay ex-stock for same-week dispatch.

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Hastelloy C22 Bolts
100 ksi min
Tensile Strength
(ASTM B574)
Grade
UNS N06022
Standard
ASTM B574 / ASTM F468
Size Range
#10-24 to 3/8-16 UNC
Hardness
100 HRB max
MTC
EN 10204 3.1
Lead Time
2-5 Days
Why Oshwin Overseas?
Fine-thread #10-24 screws through 3/8-16 hex bolts, all CNC turned in-house
No minimum order on Alloy C22 precision batches
Every consignment travels with an EN 10204 3.1 certificate, standard
Odd head style or thread form? Send your drawing and we'll quote it
Recent buyers span USA, Canada and Qatar for this grade alone
Need a Quick Quote?

Machined to ASTM B574, packed with an EN 10204 3.1 MTC and dispatched from our Mumbai stockyard.

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Hastelloy C22 Hex Bolts Manufacturer in India, Precision Machined From Fine to Standard Threads

Hastelloy C22 Threaded Rod Supplied Complete with Matching Nuts & Flat Washers as per Your Order

Hastelloy C22 Bolts Specification

Small-diameter Hastelloy C22 fasteners are precision CNC machined from solid bar. Cold-heading dies rarely pay off below 3/8 inch, so machining holds tighter tolerance. Larger stud bolts and odd head styles move to hot forging before final machining.

Machined From Bar

#10-24 UNC to 3/8-16 UNC, precision CNC turned

Hot Forged

M10-M36 metric, forged blanks for larger custom orders

Certification

EN 10204 3.1 Material Test Certificate

Compliance

NACE MR0175, PMI Testing on request

Service Range

Cryogenic service up to 1250°F (677°C)

Hex Bolt Dimensions

ASME B18.2.1 - head, width-across-flats & thread length

Hex Nut Dimensions

ASME B18.2.2 - thickness & width-across-flats

Thread Tolerance

UNC, UNF & ISO metric, Class 2A/2B fit

Most-Ordered Alloy C22 Sizes
#10-24 x 1-1/8″1/4″-20 x 1″1/4″-20 x 1-1/2″ 3/8″-18 x 1-1/4″M8 x 40mmM12 x 45mm
Full Size Range, Ex-Stock (ASTM B574 / ASTM F468)
Hex Bolt / Stud Bolt
#10-241/4″-203/8″-16 3/8″-18M8M12
Hex Nut & Lock Nut
#10-241/4″-203/8″-16/18
Flat Pan Head Screw
#10-241/4″-20

Non-standard threads and lengths get cut to your drawing. Metric and larger imperial sizes up to M36 are made on request.

Get a Quote Today - send your drawing or size list. We'll reply with an ex-Mumbai price the same working day.

Hastelloy C22 Bolts Manufacturer in India - Mumbai, Since 1999

Heat-traceable from raw bar to the finished, boxed fastener.

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Alloy C22 Fasteners - Every Type We Supply

We are currently shooting fresh product photos for this alloy range. Each type below stays in stock and ready to quote. Socket head cap screws and odd head styles are cut to drawing. Our regular scope covers Hastelloy C22 Stud Bolts and Hastelloy C22 screws. We also stock Hastelloy C22 hex nuts and Hastelloy C22 washers as standard.

Hastelloy C22 Hex Bolt
Alloy C22 Stud Bolt
UNS N06022 Threaded Rod
DIN 2.4602 Hex Nut
Nickel Alloy C22 Flat Washer
Hastelloy Alloy C22 Socket Head Cap Screw
Alloy C22 Flat Pan Head Screw
UNS N06022 Lock Nut
Hastelloy C22 Countersunk Bolt
Alloy C22 Fully Threaded Stud
DIN 2.4602 Spring Washer
Nickel C22 Set Screw
Hastelloy C22 nuts and washers matched to the same heat number One MTC covers a full bolt-nut-washer set All types to ASTM B574 / ASTM F468, UNS N06022 Fine threads down to #10-24 UNC, ex-stock Hastelloy C22 heavy hex bolts available for flange-bolting orders

ASTM B574 UNS N06022 Chemical Composition

Nickel (Ni)
Balance
Chromium (Cr)
20.0-22.5%
Molybdenum (Mo)
12.5-14.5%
Tungsten (W)
2.5-3.5%
Iron (Fe)
2.0-6.0%
Cobalt (Co)
2.50% max

Per ASTM B574, solution-annealed condition. Manganese, silicon, carbon, phosphorus, sulfur and vanadium stay tightly capped for weldability. Each heat's exact chemistry is listed on its own mill test certificate.

Nickel Alloy C22 Bolts Mechanical Properties & Tensile Strength

100 ksi
Tensile Strength, min (690 MPa)
45 ksi
Yield Strength, min (310 MPa)
45 %
Elongation, min
100 HRB
Hardness, max

Values shown are ASTM B574 minimums for the annealed condition. Larger sections may see slightly different limits by agreement.

8.69 g/cm³
Density
1360-1400°C
Melting Range
206 GPa
Young's Modulus
10.1 W/m·K
Thermal Conductivity

Hastelloy C22 vs Hastelloy C276 Bolts Which to Specify

Higher chromium (20-22.5%) gives Alloy C22 an edge in oxidizing acids like nitric acid and wet chlorine
Alloy C276 carries more molybdenum (15-17%), so it holds up better in pure reducing acids like hydrochloric
Both alloys resist pitting and crevice attack in chloride-rich water equally well
Pick C22 when your process chemistry swings between oxidizing and reducing; pick C276 for steady reducing service

UNS N06022 Bolts Equivalent Grades

UNS - USA
N06022
Werkstoff/DIN - Germany
2.4602 (NiCr21Mo14W)
Raw Material Std
ASTM B574 (Rod) / ASTM F468 (Bolts, Screws, Studs) / ASTM F2281 (Wire)
Trade Names
Hastelloy® C-22®, VDM Nicrofer® 5621 hMoW

DIN 2.4602 Alloy C22 Corrosion Resistance in Oxidizing & Reducing Media

Resists wet chlorine, nitric acid and other strong oxidizers better than most nickel alloys
Handles reducing acids too, thanks to a balanced molybdenum-tungsten ratio
Outstanding resistance to pitting and crevice corrosion in chloride-bearing streams
Stays ductile and weldable without heavy carbide precipitation in the heat-affected zone
Keep service below 1250°F (677°C) to avoid detrimental phase formation

Alloy C22 Threaded Rod Exporter in India - Priority Cargo to USA, Canada & Qatar

Send your port of discharge and we'll confirm paperwork plus a firm quote within a day.

Request Export Quote

Hastelloy Alloy C22 Hex Bolts Torque & Anti-Galling Guidance

Torque follows T = K × F × d. F is your target clamp load; K is a friction coefficient set by lubrication. The same formula applies to Alloy C22 as it does to steel bolting.

Galling Risk

C22 threads gall without lubrication - always use anti-seize

Anti-Seize

A nickel-rated compound keeps the friction coefficient K predictable

Torque Formula

T = K × F × d - K changes with your chosen lubricant

Buyer-Specified Torque

Send your clamp-load target and thread size for a confirmed figure

Clamp load and galling risk vary by size, coating and lubrication method. Share your torque spec with your inquiry rather than relying on a published number.
Dry threads (K=0.20) need about 33% more torque than lubricated ones (K=0.15), for the same clamp load
This ratio holds whether you're tightening a #10-24 screw or a 3/8-inch stud
The absolute torque figure still depends on your clamp-load target - confirm it with your design engineer

Alloy C22 Fine-Thread Bolts & Screws for Precision Assemblies

Most Hastelloy C22 enquiries we receive ask for small, fine-thread sizes. Recent orders ranged from #10-24 UNC screws to 3/8-16 UNC hex bolts. We keep these sizes machined and ready, rather than waiting on a cold-heading run.

Fine-Thread Sizes We Stock
#10-24 UNC Flat Pan Head Screw1/4″-20 UNC Hex Bolt 3/8″-16 UNC Hex Bolt3/8″-18 UNF Hex BoltM8 & M12 Metric Hex Bolt
No minimum order quantity on fine-thread precision batches Every screw and small bolt ships with a matching hex nut and washer The same CNC-turning line covers #10-24 up to 3/8-16 without re-tooling

Common Alloy C22 Bolt & Stud Enquiries We Handle

Q

Hastelloy C22 Nut & Bolt Sets, 12x45mm - a small precision batch requested by a Canadian buyer.

Q

M8 Alloy C22 Hex Bolts - a repeat Gulf process-plant order from Qatar.

Q

M12x40 UNS N06022 Hex Bolt, Full Threaded - supplied with matching nut & washer. A USA buyer ordered 100 pieces.

Q

Mixed Imperial Batch for Portland, Oregon - 1/4″-20 and 3/8″-18 hex bolts alongside #10-24 flat pan head screws.

Q

Small-Quantity Precision Orders - buyers often ask if batches under 50 pieces of Alloy C22 screws are accepted. Yes, no minimum applies.

Q

Matched Nut & Washer Sets - engineers request bolt, nut and washer from a single heat lot for full traceability.

Q

NACE MR0175 Certified Batches - sour-service buyers need dual ASTM B574 and NACE documentation on one certificate.

Q

Socket Head Cap Screw Conversions - a stainless drawing re-specified in Hastelloy Alloy C22 for a demanding duty.

Applications of Hastelloy C22 Bolts

Chemical Process & Acid-Mixing Reactor Bolting
Flue Gas & Pollution-Control Scrubbers
Pharmaceutical & Cellophane Manufacturing Equipment
Nitric Acid & Pickling System Fasteners
Geothermal Well & Nuclear Fuel Reprocessing Bolting

Hastelloy C22 Bolts Supplier in India with NACE MR0175 Compliance

Sour-service ready stock, checked and packed the same week you inquire.

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UNS N06022 Fasteners Standards Compliance

Third-party inspection and full material traceability are accepted on every order, in line with the standards below.

Bar & RodASTM B574, ASME SB574
Finished FastenersASTM F468
WireASTM F2281
DIN / WerkstoffDIN 2.4602
Bolt DimensionsASME B18.2.1
Nut DimensionsASME B18.2.2
Machine ScrewASME B18.6.3
Socket ScrewASME B18.3
Sour-ServiceNACE MR0175 / ISO 15156

Alloy C22 Bolts Manufacturing Expertise Cold-Headed & Machined Range

Small-diameter Hastelloy C22 fasteners are turned on CNC lathes, not cold-headed. Cold-heading dies only pay for themselves above roughly 3/8 inch diameter. Below that, machining from bar holds tighter thread tolerance for less tooling cost.


CNC Turning

Thread Cutting

Drilling & Tapping

Chamfering

Solution Annealing

PTFE / Silver Plating

Our Export Network

Qatar and the wider Gulf send steady Alloy C22 inquiries for process-plant bolting. USA and Canada lead demand for small precision batches, alongside interest from Southeast Asia and Europe.

Middle East
QatarQatar UAEUAE Saudi ArabiaSaudi Arabia KuwaitKuwait OmanOman
Paperwork pre-cleared for Gulf chemical and process-plant customs entry.
Americas
USAUSA CanadaCanada
Africa
South AfricaSouth Africa EgyptEgypt NigeriaNigeria
Europe & UK
United KingdomUnited Kingdom NetherlandsNetherlands GermanyGermany TurkeyTurkey BelgiumBelgium
Southeast & South Asia
SingaporeSingapore MalaysiaMalaysia ThailandThailand IndonesiaIndonesia PhilippinesPhilippines VietnamVietnam South KoreaSouth Korea AustraliaAustralia

Recent Hastelloy C22 Bolt Enquiries

Nut & Bolt Set
IndiaMumbai CanadaCanada

Product: Hastelloy C22 Nut & Bolt Set, UNS N06022

Size: 12x45mm

Hex Bolt
IndiaMumbai QatarQatar

Product: Alloy C22 Hex Bolts

Size: M8

Full Threaded Set
IndiaMumbai USAUSA

Product: UNS N06022 Hex Bolt, Full Threaded, with Nut & Washer

Size: M12x40mm, 100 pieces

Mixed Imperial Batch
IndiaMumbai USAPortland, OR

Product: Alloy C22 Hex Bolts & Flat Pan Head Screws, 1/4″-20, 3/8″-18 & #10-24

Size: Mixed batch, 100 Ea

Typical Pattern
IndiaMumbai UAEGulf

Product: DIN 2.4602 Stud Bolts with Heavy Hex Nuts

Size: Chemical-plant flange bolting, typical order pattern

Delivery Estimate From Ready Stock

Mumbai Warehouse

Packing starts the same day your order is confirmed

Sea Freight

Lowest per-kilo cost, 15-30 days port to port

Air Freight

3-6 days - the fallback when a plant shutdown can't wait

Get a Firm Date

Share your port and we'll lock in a delivery date

USAUSA18-26 days
CanadaCanada20-28 days
QatarQatar10-16 days
UAEUAE10-16 days

Port-to-port sea freight, above. In a hurry? Air cuts it to 3-6 days.

Alloy C22 Bolt Buyer FAQs

ASTM B574 or ASTM F468 - which applies to Hastelloy C22 bolts?+

ASTM F468 is the American specification for the finished bolt screw or stud. ASTM B574 covers the raw bar it gets machined from. Order F468 when you need the finished fastener and B574 when you need bar stock.

What sizes does Oshwin stock in Hastelloy C22 bolts?+

Ex-stock from #10-24 UNC up to 3/8-16 UNC, plus M6 to M12 metric. Larger diameters up to M36 are machined to your drawing.

Can you supply small quantities, like 100 pieces?+

Yes - our machining line handles precision batches with no minimum order. Recent orders from the USA and Canada were under 200 pieces total.

What torque should I use on Hastelloy C22 bolts?+

C22 threads gall easily without lubrication, so always use anti-seize. Share your bolt size and coating choice, and we'll confirm torque.

Why choose Hastelloy C22 over Hastelloy C276?+

C22 fasteners handle oxidizing acids like nitric acid and wet chlorine better. C276 is the stronger choice for reducing acids like hydrochloric acid. Not sure which fits your process? Send us your chemical exposure and we'll recommend the right fastener grade.

Do you supply Hastelloy C22 fasteners to NACE MR0175?+

Yes, hex bolts, stud bolts and nuts to NACE MR0175 for sour service. We provide EN 10204 3.1 certification and PMI testing on request.

Do bolts, nuts and washers ship as matched sets?+

Yes - every set is traced back to a single heat number. One material test certificate covers the full bolt-nut-washer set.

Where can I buy Hastelloy C22 bolts?+

Oshwin Overseas stocks Hastelloy C22 bolts ex-Mumbai for same-week quoting. We ship worldwide, with EN 10204 3.1 certification on every consignment.

Hastelloy C22 Bolts, Stud Bolts, Nuts & Threaded Rods - ASTM B574 UNS N06022
ISO 9001:2015 certified Hastelloy C22 Bolts Manufacturer and Supplier in Mumbai, India