Why Offshore Buyers Choose Ganpat Industrial For Hastelloy C276 Washers?
Full NiCrMo-W Chemistry
14.5–16.5% Cr • 15–17% Mo – heat-certified every batch
One Enquiry, Full Range
Plain • Spring • Split • Tab • Star • Ogee – single PO
Offshore & Refinery Certified
ISO 9001 • PED • Petrofac Approved heats on request
Zero Inspection Surprises
Hardness • torsion • dimensional – checked before it ships
Quote In 24 Hours
Ready stock on standard sizes – ships same week
Hastelloy C276 Washers Abstract
- 1Type: Plain, Spring, Split, Tab, Star, Ogee, Square, Punched, Customized
- 2Size Range: M4 to M36 • OD 9 mm to 66 mm
- 3Common Grades: UNS N10276, W.Nr 2.4819, Hastelloy® C-276, Nickelvac® HC-276, Nicrofer® 5716 hMoW
- 4Standards: ASTM B574, ASME SB574, ASME B18.22.1, DIN 125, ISO 7089
- 5Origin: Indian origin • European origin • Japanese origin
- 6Finish: Bright Annealed, Pickled, Bright Mat, Polished
Or call our Mumbai office: +91 22 6743 7134 • Fast dispatch on ready stock sizes
Ganpat Industrial manufactures Hastelloy C276 Washers with complete corrosion-resistant chemistry. Each ISO 7089 Nicrofer® 5716 Washer undergoes hardness testing. Torsion testing further verifies their strength before dispatch. Documented stock supports offshore pipeline, refining, and chemical processing applications. Supplies reach buyers across India, UAE, and Middle Eastern markets.
Mumbai · Hastelloy C276 Washers Manufacturer In India
Strong. Durable. Corrosion-Resistant.
Ganpat Industrial forges Alloy C-276 Plain Washers for demanding applications. Serving offshore, refining, FGD, and chemical industries across key markets.
- ✓Material Traceability
- ✓Quality Tested Products
- ✓Global Export Support
- ✓Petrofac Approved
Pitting-Resistant Nickelvac® HC-276 Washer Manufacturer in India With Hardness & Torsion Test Reports
Hastelloy C276 Washers Specification
Get Hastelloy C276 Washers Supplier In India, offering reliable specifications on every enquiry.
Alloy C-276 Plain Washers Material
- UNS N10276
- W.Nr 2.4819
- Nickelvac® HC-276
- Nicrofer® 5716 hMoW
ASTM B574 Hastelloy Split Washer Size Range
- ID: M4 – M36
- OD: 9 – 66 mm
- Thickness: 0.7 – 6 mm
- Custom sizes on drawing
Nicrofer® 5716 Square Washer Testing
- Hardness Test (HB)
- Torsion & Flattening Test
- Dimensional Check
- Third-Party Inspection
Nickel Alloy UNS N10276 Spring Washer Finish
- Bright Annealed
- Pickled
- Bright Mat
- Polished
DIN 2.4819 Hastelloy ASME SB574 Ogee Washers Documentation
- Mill Test Certificate 3.1
- NABL Lab Report
- Packing List
- Certificate Of Origin
Hastelloy C276 Bright Mat Washers Origin
- Indian Origin
- European Origin
- Japanese Origin
- Heat-Number Traceable
Size Chart of DIN 125 Hastelloy Alloy C276® Flat Washers
| Nominal Bolt Size | Inner Dia d1 (mm) | Outer Dia d2 (mm) | Thickness (mm) |
|---|---|---|---|
| M4 | 4.3 | 9.0 | 0.7 – 0.9 |
| M5 | 5.3 | 10.0 | 0.9 – 1.1 |
| M6 | 6.4 | 12.0 | 1.4 – 1.8 |
| M8 | 8.4 | 16.0 | 1.4 – 1.8 |
| M10 | 10.5 | 20.0 | 1.8 – 2.2 |
| M12 | 13.0 | 24.0 | 2.3 – 2.7 |
| M16 | 17.0 | 30.0 | 2.7 – 3.3 |
| M20 | 21.0 | 37.0 | 2.7 – 3.3 |
Hastelloy C276 Punched Washers Manufacturing Process
Raw Material & MTC Check
Incoming UNS N10276 coil or strip verified against Mill Test Certificate 3.1
Slitting & Blanking
Strip slit to width, blanked into rough washer discs on power press tooling
Precision Piercing
ID hole punched to tolerance with die clearance held for the work-hardened alloy
Deburring & Edge Finish
Edges rounded for smooth bolt seating and burr-free torque loading
Solution Annealing
1066–1121°C soak with rapid water quench restores full corrosion resistance
Inspection & Packing
Hardness, PMI & dimensional check, then export-ready packing
316 Stainless Steel Washers vs Hastelloy C276 Washers Comparison
316 Stainless Steel Washers
- Lower molybdenum content
- Good general corrosion resistance
- Limited resistance to severe pitting
- Less suitable for aggressive chemicals
Hastelloy C276 Washers
- Higher molybdenum and tungsten content
- Excellent resistance to pitting and crevice attack
- Strong resistance to stress corrosion cracking
- Designed for harsh chemical environments
Buying Hastelloy Gr.C276 Star Washer For An Offshore Or Refinery Project?Tell us the size, grade & volume – factory pricing with MTC 3.1 comes back within a day.
ASTM B574 UNS N10276 Washers Testing Methods
Find Hastelloy C276 Washers Supplier in India offering verified testing methods.
Brinell Hardness Test
Verified against the 210 HB solution-annealed ceiling in ASTM B574
Torsion & Flattening Test
Confirms spring, split & lock washer torsion characteristics before dispatch
PMI Testing
Positive Material Identification confirms Ni-Cr-Mo-W chemistry on every heat
Dimensional & Visual
ID, OD, thickness & surface checked per lot against DIN 125 / ISO 7089
Intergranular Corrosion Test
ASTM G28 Method A confirms weld-heat-affected-zone corrosion resistance
Tensile & Yield Test
Confirms 690 MPa min tensile / 283 MPa min yield per ASTM E8
Distinct Types of Hastelloy C276 Washers
Hastelloy C276 Plain Washer
DIN 125A
ASTM B574 Hastelloy Split Washer
DIN 127A
Nicrofer® 5716 Square Washer
DIN 436
Hastelloy Alloy C-276 Dock Washer
USS Fender
DIN 2.4819 Hastelloy ASME SB574 Ogee Washers
Ogee Type
Hastelloy C276 Punched Washer
Custom Drawing
Hastelloy C276 Tab Washers
Custom Drawing
Alloy C-276 Tooth Lock Washer
DIN 6797
Chemical Composition of Nickelvac® HC-276 Washer
NickelNi
Balance
MolybdenumMo
15.00–17.00%
ChromiumCr
14.50–16.50%
IronFe
4.00–7.00%
TungstenW
3.00–4.50%
CobaltCo
≤ 2.50%
ManganeseMn
≤ 1.00%
VanadiumV
≤ 0.35%
SiliconSi
≤ 0.08%
CarbonC
≤ 0.010%
PhosphorusP
≤ 0.040%
SulphurS
≤ 0.030%
Nickel Alloy UNS N10276 Spring Washer Mechanical Properties
Tensile Strength
690 MPa Min
ASTM B574
Yield Strength
283 MPa Min
0.2% Proof Stress
Hardness
≤ 210 HB
Solution Annealed
Elongation
40% Min
In 50 mm Gauge
Material Equivalent of ISO 7089 Nicrofer® 5716 Washer
American Standard
- UNS N10276
- ASTM B574 / ASME SB574
- ASME B18.22.1 • AMS 5750
European Standard
- W.Nr 2.4819
- DIN 17744 / DIN 125
- ISO 6208 / ISO 7089
Japanese Standard
- JIS G 4901 NW0276
- JIS B 1256
- NACE MR0175 / ISO 15156
Monthly Delivery of Nickel Alloy UNS N10276 Spring Washer to Below Countries
| Export to | Countries | Continent | Ports | Shipping time |
|---|---|---|---|---|
 |
Saudi Arabia | Asia | Jubail | 7 |
 |
Italy | Europe | Genoa | 30 |
Need Torsion-Tested Hastelloy C276 Tab Washers On Drawing?Attach your BOQ – we revert with pricing, MTC 3.1 and a dispatch date within the week.
Machining Guide of DIN 2.4819 Hastelloy ASME SB574 Ogee Washers
Run Low, Constant Cutting Speeds
C276 work-hardens fast – keep speed steady and avoid dwelling in the cut
Rule 1
Use Sharp, Rigid Tooling
Positive rake carbide or cobalt-HSS tooling reduces heat build-up at the cutting edge
Rule 2
Flood Coolant Continuously
Sustained flood cooling carries heat away and protects the passive layer during punching
Rule 3
Hold Tight Tool Clearance On ID Punching
Correct die clearance on the ID hole avoids burring and work-hardened edges on split/star washers
Rule 4
Order Custom Sizes On Drawing
Ogee, tab and customized washers per ASME B18.22.1 are cut to your DXF or PDF drawing
Rule 5
Hastelloy C276 Washers HSN Code
HSN Code
7508.90.90
Other Articles Of Nickel & Nickel Alloy
GST Rate
18%
Applicable On Domestic Sale
Basic Customs Duty
0%
Indicative – verify current tariff on import
Export Benefit
RoDTEP Eligible
Duty drawback available on export orders
Surface Finish of Nickelvac® HC-276 Industrial Washers
Bright Annealed
- Reflective, oxide-free surface
- Annealed under protective atmosphere
- No secondary pickling needed
Pickled Finish
- Acid-pickled to remove scale
- Matte grey surface
- Standard mill condition
Bright Mat Finish
- Fine, uniform mat texture
- Balances grip and corrosion resistance
- Common on split & spring washers
Weight Chart of ASTM B574 Nickelvac® HC-276 Washers
| Nominal Size | Thickness (mm) | Approx. Weight (kg / 100 pcs) |
|---|---|---|
| M4 | 0.8 | 0.40 |
| M5 | 1.0 | 0.62 |
| M6 | 1.6 | 1.45 |
| M8 | 1.6 | 2.55 |
| M10 | 2.0 | 4.65 |
| M12 | 2.5 | 7.55 |
| M16 | 3.0 | 13.45 |
| M20 | 3.0 | 21.20 |
| M24 | 4.0 | 39.50 |
| M30 | 4.0 | 60.00 |
Export Packaging of Hastelloy Alloy C-276 Dock Washers
Poly Bag & Carton
Standard retail-ready packing for trial orders
Wooden Pallet Box
For container-load dock & offshore project shipments
VCI Moisture Barrier Pack
Prevents surface staining on long sea-transit
Custom Labelling
Heat number and grade marked per buyer requirement
Need Hastelloy C276 Washers, Rings Or Discs On Your Drawing?Ready stock plus custom sizes – factory price with MTC 3.1.
Get ASTM B574 Hastelloy Split Washer offer Excellent Durability For Offshore Pipelines and Refining Industry
Applications of ASME B18.22.1 Hastelloy C-276 Customized Washer
Get Hastelloy C276 Washers Manufacturer in India providing diverse applications.
Offshore Oil & Gas Pipelines
Petroleum Refining Trains
Chemical & Petrochemical Reactors
Flue Gas Desulfurization Systems
Seawater & Desalination Plants
Pulp & Paper Bleach Plants
Pharmaceutical Reactors & Piping
Marine Docks & Structural Fastening
Alloy C-276 Tooth Lock Washer Delivered Weekly to the Following Countries
| Export to | Countries | Continent | Ports | Shipping time |
|---|---|---|---|---|
 |
UAE | Asia | Mina Rashid | 5 days |
 |
Thailand | Asia | Laem Chabang | 7 |
 |
Germany | Europe | Bremerhaven | 20 |
Frequently Asked Questions
What is the price of Hastelloy C276 Washers?
Price depends on size, type, thickness, and quantity.
Are DIN 125 Hastelloy Alloy C276® Flat Washers magnetic?
C276 is essentially non-magnetic in solution-annealed condition.
What size range is available in ASTM B574 UNS N10276 Washers?
Standard sizes are available, with custom sizes upon request.
Our Dealers and Distributors in Below Continents
| Continents | Country |
|---|---|
| Africa | Nigeria, Egypt, Ethiopia,South Africa, Kenya, Ghana |
| South America | Colombia, Chile, Peru, Brazil, Argentina |
| Australia | New Zealand,Fiji, Samoa,Papua New Guinea |
| Asia | India, Indonesia, Saudi Arabia, Iran,Japan, South Korea |
| North America | United States, Mexico, Cuba, Canada, |
| Europe | UK, Italy,Germany, France, Spain, Poland, Ukraine |
6 Reasons to choose Ganpat Industrial Corporation
- Distributor of Heat Exchanger parts and Alloys for High Temperature applications.
- Stockholder and importer of Ferrous and non ferrous metals.
- Wide stock of prime quality austenitic and Ferritic Stainless Steel for Extreme pressure environment.
- Marine grade steel at lowest price in Mumbai.
- Compare Price per KG in India and China.
- Offer Resale price to local suppliers, traders and wholesalers in UAE, Saudi Arabia, Egypt, and USA