Why Furnace Buyers Choose Ganpat Industrial For Incoloy 330 Washers?
34–37% Nickel Heats
Where 310 grade sags, alloy 330 holds shape past 1090°C
One Enquiry, Full Range
Flat • Lock • Spring • Sealing — all in one PO
Carburization Tested Heats
Silicon-controlled melts, verified batch by batch
Zero Inspection Surprises
PMI • hardness • dimensional — before it ships
Quote In 24 Hours
Ready stock on standard sizes — ships same week
Incoloy 330 Washers Facts & Figures
- 1Type: Flat, Star, Lock, Sealing, Conical, Square, Machine, Spring, Punched
- 2Size Range: M2 to M36 • OD 5 mm to 66 mm
- 3Common Designations: UNS N08330, WNr. 1.4886, AISI 330
- 4Quality: Precision Machined, Mill Test Certificates, Dimensional Inspection
- 5Service: Continuous duty up to 1090°C • Intermittent to 1150°C
- 6Finish: Bright Annealed, Pickled, Shot Blasted, Natural Mill Finish
Or call our Mumbai office: +91 22 6743 7134 • Fast dispatch on ready stock sizes
Incoloy 330 Washers are built for demanding high-temperature service where standard stainless steel falls short. Made from UNS N08330, these washers are built to handle carburizing atmospheres making them a reliable choice for furnaces, kilns, and heat-processing equipment. Ganpat Industrial manufactures and tests every batch in-house, supplying quality washers across India, and the Middle East.
Mumbai · Incoloy 330 Washers Manufacturer India
Incoloy 330 Washers Built to Perform in Extreme Temperatures
Ganpat Industrial forges UNS N08330 Split Washers for high-temperature applications requiring excellent oxidation and carburization resistance across India, UAE, and Middle East.
- ✓Custom Sizes Available
- ✓Mill Test Certificates (EN 10204 3.1)
- ✓Worldwide Export Supply
- ✓Fast Delivery
- ✓100% Quality Inspected
SS 330 Incoloy Lock Washer Manufacturer in India With Global Export Supply
Incoloy 330 Washers Specification
UNS N08330 Split Washer Material
- UNS N08330
- W. Nr. 1.4886
- RA330 / AISI 330
- ASTM B408 Grade N08330
Incoloy Alloy 330 Star Washer Size Range
- ID: M2 – M36
- OD: 5 – 66 mm
- Thickness: 0.3 – 6 mm
- Custom sizes on drawing
330 Incoloy Round Washer Testing
- PMI Testing
- Hardness Check (HRB)
- Dimensional Check
- Third-Party Inspection
Alloy Ra 330 Lock Washer Finish
- Bright Annealed
- Pickled & Passivated
- Shot Blasted
- Natural Mill Finish
WERKSTOFF NR. 1.4886 Spring Washer Documentation
- Mill Test Certificate 3.1
- NABL Lab Report
- Packing List
- Certificate Of Origin
ASTM B408 330 Punched Washer Origin
- Indian Origin
- European Origin
- US Origin
- Heat-Number Traceable
Buy Alloy Ra 330 Slot Washer With Custom Dimensions And Fast Delivery
Dimensions of Alloy Ra 330 Slot Washer
Get Incoloy 330 Washers Supplier in India providing accurate dimensions at competitive rates.
| Bolt Size | USS | SAE | ||||
|---|---|---|---|---|---|---|
| OD (in.) | ID (in.) | Thickness | OD (in.) | ID (in.) | Thickness | |
| 3/4 | 2.000 | 0.812 | .122/.177 | 1.469 | 0.812 | .108/.160 |
| 1/8 (#6) | – | – | – | 0.375 | 0.156 | .036/.065 |
| 5/32 (#8) | – | – | – | 0.438 | 0.188 | .036/.065 |
| 1 1/8 | 2.750 | 1.250 | .136/.192 | 2.250 | 1.250 | .108/.160 |
| 7/32 (#12) | – | – | – | 0.562 | 0.250 | .051/.080 |
| 1/4 (#14) | 0.734 | 0.312 | .051/.080 | 0.625 | 0.281 | .051/.080 |
| 3/8 | 1.000 | 0.438 | .064/.104 | 0.812 | 0.406 | .051/.080 |
| 1 1/2 | 3.500 | 1.625 | .153/.213 | 3.000 | 1.625 | .153/.213 |
| 7/16 | 1.250 | 0.500 | .064/.104 | 0.922 | 0.469 | .051/.080 |
| 1 3/8 | 3.250 | 1.500 | .153/.213 | 2.750 | 1.500 | .136/.213 |
| 5/8 | 1.750 | 0.688 | .108/.160 | 1.312 | 0.656 | .074/.121 |
| 1/2 | 1.375 | 0.562 | .086/.132 | 1.062 | 0.531 | .074/.121 |
| 7/8 | 2.250 | 0.938 | .136/.192 | 1.750 | 0.938 | .108/.160 |
| 5/16 | 0.875 | 0.375 | .064/.104 | 0.688 | 0.344 | .051/.080 |
| 1 | 2.500 | 1.062 | .136/.192 | 2.000 | 1.062 | .108/.160 |
| 3/16 (#10) | 0.560 | 0.250 | .036/.065 | 0.500 | 0.220 | .036/.065 |
| 1 1/4 | 3.000 | 1.375 | .136/.192 | 2.500 | 1.375 | .136/.192 |
| 9/16 | 1.469 | 0.625 | .086/.132 | 1.156 | 0.594 | .074/.121 |
Key Features of WERKSTOFF NR. 1.4886 Square Washer
Creep Resistance
Performs reliably under sustained heat
High-Temperature Stability
Maintains strength at elevated temperatures
Dimensional Precision
Manufactured to precise tolerances
Thermal Cycling Durability
Resists repeated heating and cooling
Need Furnace-Grade Incoloy 330 Sealing & Spring Washers On Short Notice?Share size & quantity — get factory price with MTC 3.1 in 24 hours.
330 Incoloy Spring Washer Delivered Weekly to the Following Countries
| Export to | Countries | Continent | Shipping time | Ports |
|---|---|---|---|---|
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Italy | Europe | 30 Days | Genoa |
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Spain | Europe | 30 Days | Algeciras |
Various Types of 330 Incoloy Washers

Incoloy UNS N08330 Flat Washer
DIN 125A

ASTM B408 330 Star Washer
DIN 6798

330 Incoloy Conical Washer
DIN 6796

Werkstoff NR. 1.4886 Lock Washer
DIN 127B

Incoloy Alloy 330 Sealing Washer
Bonded Seal

Alloy Ra 330 Split Washer
DIN 127A

330 Incoloy Square Washer
DIN 436

UNS N08330 Machine Washer
Custom Drawing
Incoloy UNS N08330 Flat Washer Weight Chart
| Bolt Size | Inner Dia d1 (mm) | Outer Dia d2 (mm) | Thickness s (mm) | Weight Per Pc (grams) |
|---|---|---|---|---|
| M2 | 2.2 | 5.0 | 0.3 | 0.04 |
| M2.5 | 2.7 | 6.0 | 0.5 | 0.09 |
| M3 | 3.2 | 7.0 | 0.5 | 0.12 |
| M4 | 4.3 | 9.0 | 0.8 | 0.32 |
| M18 | 19.0 | 34.0 | 3.0 | 15.04 |
| M5 | 5.3 | 10.0 | 1.0 | 0.45 |
| M14 | 15.0 | 28.0 | 2.5 | 8.81 |
| M6 | 6.4 | 12.0 | 1.6 | 1.04 |
| M24 | 25.0 | 44.0 | 4.0 | 33.07 |
| M8 | 8.4 | 16.0 | 1.6 | 1.87 |
| M12 | 13.0 | 24.0 | 2.5 | 6.42 |
| M10 | 10.5 | 20.0 | 2.0 | 3.65 |
| M20 | 21.0 | 37.0 | 3.0 | 17.56 |
| M22 | 23.0 | 39.0 | 3.0 | 18.77 |
| M16 | 17.0 | 30.0 | 3.0 | 11.56 |
| M27 | 28.0 | 50.0 | 4.0 | 43.29 |
| M30 | 31.0 | 56.0 | 4.0 | 54.87 |
Applications of ASTM B408 330 Star Washer
Find Reliable Incoloy 330 Washers Supplier In India for high-temperature applications.
Industrial Heating Furnaces
Heat-Treatment Baskets & Trays
Muffles, Retorts & Radiant Tubes
Boiler & Power Plant Fixtures
Gas Turbine Components
Petrochemical Process Skids
Ore & Mineral Processing Plants
Conveyor & Fixture Assembly
ASTM B408 330 Punched Washer PriceQuoted per piece or per kg, factory-direct, no trader markup.
Chemical Composition of UNS N08330 Conical Washer
NickelNi
34.00–37.00%
ChromiumCr
17.00–20.00%
SiliconSi
0.75–1.50%
ManganeseMn
≤ 2.00%
CarbonC
≤ 0.08%
IronFe
Balance
Mechanical Properties of Alloy Ra 330 Split Washer
Tensile Strength
552–586 MPa
Mill-Annealed Typical
Yield Strength
207–296 MPa
0.2% Offset
Hardness
70–85 HRB
Rockwell B Scale
Elongation
40–45% Min
In 2 Inch Gauge
Incoloy Alloy 330 Spherical Washer Equivalent
American Standard
- UNS N08330
- ASTM B408 / ASTM B536
- AMS 5592 / AMS 5716
European Standard
- W. Nr. 1.4886
- EN 10095
- DIN 125 / DIN 127 Forms
JIS Standards
- JIS G4312 (SUH)
- JIS B1256 (Conical Spring Washer)
- NCF 330 (Japanese Trade Grade)
How Are ASTM B408 330 Round Washer Manufactured?
Raw Material & MTC Check
Incoming UNS N08330 coil verified against Mill Test Certificate 3.1
Coil Slitting & Blanking
Strip slit to width, blanked into rough washer discs
Precision Piercing
ID hole punched to tolerance on CNC power press tooling
Deburring & Edge Finish
Edges rounded for smooth bolt seating and clean stacking
Anneal & Pickle
Solution annealed and pickled to restore oxidation resistance
Inspection & Packing
PMI & dimensional check, then export-ready packing
Alloy Ra 330 Machine Washer Delivered Weekly to The Following Countries
| Export to | Countries | Continent | Shipping time | Ports |
|---|---|---|---|---|
|
Indonesia | Asia | 9 Days | Belawan |
|
Germany | Europe | 20 Days | Duisburg |
|
Philippines | Asia | 14 Days | Bugo |
WERKSTOFF NR. 1.4886 Sealing Washer Testing Methods
Check Incoloy 330 Washers Manufacturer in India providing verified testing methods with quality assurance.
PMI Testing
Positive Material Identification on every heat
Dimensional Inspection
OD, ID, thickness & surface checked per lot
Hardness Testing
Rockwell B hardness verified against ASTM B408
Frequently Asked Questions
Is an Incoloy 330 Round Washer magnetic?
Incoloy 330 Washer is essentially non-magnetic in the annealed condition
What makes Incoloy 330 different from SS 310?
The higher nickel content in Incoloy 330 gives far better resistance to carburization and thermal cycling than SS 310
Can Incoloy 330 Washers be used above 1000°C?
Yes, alloy 330 is rated for continuous duty up to 1090°C and intermittent duty to 1150°C
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