Why Industrial Buyers Pick Ganpat For Monel Washers?
Ni-Cu Alloy 400
UNS N04400 heats with mill certificates
One PO, Full Range
Flat • Lock • Spring • Sealing • Slot
ISO & PED Certified
ISO 9001 • ISO 14001 • PED
Tested Before Dispatch
PMI • salt spray • size check
Quote Fast
WhatsApp your size, get a price
Monel Washers Highlights
- 1Type: Flat, Lock, Spring, Split, Star, Conical, Square, Sealing, Slot, Spherical, Punched
- 2Size Range: M3 to M64 • OD 7 mm to 115 mm
- 3Grade: Monel 400 • UNS N04400 • W.Nr. 2.4360 / 2.4361
- 4Standards: ASTM F467 • ASME B18.21.1 • ISO 7089 • DIN 125A
- 5Finish: Bright or Dull, Pickled, Polished
- 6Documents: MTC 3.1 • Heat-number traceable
Ganpat Industrial manufactures Monel Washers for superior corrosion resistance. These washers withstand seawater, saltwater, acids, and harsh industrial environments. Their reliable performance suits marine, chemical, offshore, and coastal applications. Every washer undergoes quality testing before dispatch to customers worldwide. Documented stock supports buyers across India, UAE, and Middle Eastern markets.
Mumbai · Monel Washers Exporter
Monel Washers That Hold Up Where Steel Corrodes
Ganpat Industrial forges and supplies ASTM F467 Monel Flat Washers for marine, offshore, chemical, and coastal applications across India, the UAE, and the Middle East.
- ✓ASTM F467 Compliant
- ✓Heat Number Traceability
- ✓PED Certified
- ✓Dimensional Inspection
Get ASTM F467 Monel Flat Washers Manufacturer in India As Per ASME/ANSI B18.21.1 Standard
Monel Washers Specification
As a Monel Washers Supplier in India, we ship with full material paperwork on every lot.
Monel Washers Material
- UNS N04400
- W.Nr. 2.4360 / 2.4361
- BS NA13
- Monel 400 Ni-Cu Alloy
Monel Flat Washer Size Range
- ID: M3 – M64
- OD: 7 – 115 mm
- Thickness: 0.5 – 10 mm
- Custom sizes on drawing
ASTM F467 Monel Flat Washer Standards
- ISO 7089 / DIN 125A
- ASME B18.21.1 (inch series)
- Pairs with ASTM F467 nuts
- Pairs with ASTM F468 bolts
Monel Punched Washer Testing
- PMI Testing
- Salt Spray Test
- Dimensional Check
- Third-Party Inspection
Monel Alloy Round Washer Finish
- Bright Finish
- Dull Finish
- Polished Finish
Monel Lock Washer Documentation
- Mill Test Certificate 3.1
- Packing List
- Certificate Of Origin
- Heat-Number Traceable
Buy Salt Spray Tested Monel Alloy Spherical Washer in M3 to M64 Size With Bright/Dull Finish For Marine & Chemical Applications
Size Chart of ASTM F467 Monel Flat Washer
| Thread Size | D1 Inside Dia (mm) | D2 Outside Dia (mm) | S Thickness (mm) |
|---|---|---|---|
| M3 | 3.2 | 7 | 0.5 |
| M3.5 | 3.7 | 8 | 0.5 |
| M4 | 4.3 | 9 | 0.8 |
| M5 | 5.3 | 10 | 1 |
| M6 | 6.4 | 12 | 1.6 |
| M8 | 8.4 | 16 | 1.6 |
| M10 | 10.5 | 20 | 2 |
| M12 | 13 | 24 | 2.5 |
| M14 | 15 | 28 | 2.5 |
| M16 | 17 | 30 | 3 |
| M18 | 19 | 34 | 3 |
| M20 | 21 | 37 | 3 |
Surface Finish Options For Monel Alloy Spherical Washer
Bright Finish
- Smooth, reflective surface
- Clean look on visible joints
- Easy to wipe down
Dull Finish
- Matte, non-reflective look
- Suits hidden joints and skids
- Lower glare on site
Polished Finish
- Fine, smooth surface
- Enhanced visual appearance
- Suitable for exposed applications
Monthly Delivery of Monel Lock Washer To Below Countries
| Export to | Continent | Port | Shipping Time |
|---|---|---|---|
|
Malaysia |
Asia | Port of Singapore | 15-50 Days |
|
Brazil |
South America | Port of Itaqui | 25-39 Days |
|
Singapore |
Asia | Port Klang | 7-14 Days |
Distinct Types of Monel Washers

Monel Punched Washer
Custom Drawing

Monel Alloy Round Washer
Custom Drawing

Monel Spring Washer
DIN 436

ASTM F467 Monel Flat Washer
ISO 7089

Monel Star Washer
DIN 6797

Monel Alloy Slot Washer
Custom Drawing

Monel Conical Washer
DIN 6796

Monel Lock Washer
ASME B18.21.1
Need Monel Washers Cut To Your Drawing?Share size & quantity – get a factory quote with MTC 3.1.
Value Added Services of ASTM F467 Monel Machine Washer
Custom Sizes On Drawing
OD, ID and thickness cut to your requirement
Made To Order
Salt Spray Testing
Chloride exposure check before dispatch
Testing
PMI & Third-Party Inspection
Alloy confirmed on every heat, buyer inspector welcome
Inspection
Mill Test Certificate 3.1
Heat-wise chemical and mechanical report
Documents
Export Packing
Poly bag, carton or pallet box as per order
Packing
Heat-Number Marking
Traceable label per buyer requirement
Marking
Chemical Composition of Monel Alloy Round Washer
| Grade | Ni + Co | Cu | Fe | Mn |
|---|---|---|---|---|
| Monel 400 | ≥ 63.0 | 28.0–34.0 | ≤ 2.5 | ≤ 2.0 |
| Monel R-405 | ≥ 63.0 | 28.0–34.0 | ≤ 2.5 | ≤ 2.0 |
| Monel K-500 | ≥ 63.0 | 27.0–33.0 | ≤ 2.0 | ≤ 1.5 |
Monel Alloy Sealing Washer Mechanical Properties
Tensile Strength
485 MPa Min
Annealed • ASTM B127
Yield Strength
195 MPa Min
0.2% Proof Stress
Elongation
35% Min
Annealed Strip
Density
8.80 g/cm³
0.318 lb/in³
Monel Conical Washer Material Equivalent
| Grade | UNS Number | EN Designation | DIN / Werkstoff Nr. |
|---|---|---|---|
| Monel 400 | N04400 | NiCu30Fe | 2.4360 / 2.4361 |
| Monel R-405 | N04405 | NiCu30Fe | 2.4361 |
| Monel K-500 | N05500 | NiCu30Al | 2.4375 |
Welding Methods of Monel Punched Washer
TIG • MIG • SAW
MONEL Filler Metal 60 – AWS A5.14 ERNiCu-7
Stick (SMAW)
MONEL Electrode 190 – AWS A5.11 ENiCu-7
Alternate Consumables
INCONEL Filler 62 or Electrode 112 by Special Metals
Head Drives of Monel Washers
Hex Head Bolt
Flat washer under head, lock or split washer under nut
Bolt + Nut
Socket Cap Screw
Round or flat washer keeps hex-key head off the surface
Hex Key
Slotted Head
Flat washer spreads load on soft mating parts
Slot Drive
Phillips / Pozidriv
Star or spring washer holds cross-drive screws against vibration
Cross Drive
Torx Head
Conical washer for high clamp-load joints
Star Drive
Monel Star Washer Manufacturing Process
Sheet & MTC Check
Monel 400 strip checked against mill certificate
Blanking
Discs cut to washer OD
Piercing
ID punched to tolerance
Deburring
Edges smoothed for clean bolt seating
Finishing
Bright or dull finish applied
Inspection & Packing
PMI, size check, then packing
Weight Chart Monel Flat Spring Washer
| Thread Size | Weight kg per 1000 pcs | Approx. Pcs per kg |
|---|---|---|
| M3 | 0.134 | 7,466 |
| M3.5 | 0.174 | 5,752 |
| M4 | 0.346 | 2,893 |
| M5 | 0.497 | 2,012 |
| M6 | 1.14 | 878 |
| M8 | 2.05 | 488 |
| M10 | 4.01 | 250 |
| M12 | 7.03 | 142 |
| M14 | 9.66 | 104 |
| M16 | 12.7 | 79 |
| M18 | 16.5 | 61 |
| M20 | 19.2 | 52 |
| M22* | 20.6 | 49 |
| M24 | 36.2 | 28 |
Buying Monel Alloy Slot Washer In Bulk For Marine Project?Send your BOQ – factory price, MTC 3.1, dispatch same week.
Markings of Monel Square Washer
Heat Number
Ties every lot back to its mill certificate
Grade Mark
Monel 400 / UNS N04400 on tag or label
Size & Lot
Thread size and batch on each carton
Buyer Marking
Custom label on request
Monel Wire Spring Washer Testing Methods
Check Monel Washers Manufacturer in India providing quality testing methods.
PMI Testing
Confirms Monel alloy grade and chemical composition.
Dimensional & Visual Inspection
Checks ID, OD, thickness, flatness and surface finish.
Hardness Testing
Verifies hardness meets the specified material condition.
Tensile Testing
Confirms mechanical properties when specified by order.
Salt Spray Test
Evaluates corrosion resistance under salt spray exposure.
Third-Party Inspection
Independent inspection and testing available on request.
Applications of ASTM F467 Monel Split Washer
Find Monel Washers Supplier in India for marine and process-plant joints.
Marine Engineering
Seawater Systems
Chemical Processing
Hydrocarbon Processing
Heat Exchangers
Valves & Pumps
Acid & Alkali Plants
Shafts & Fittings
Monel Washers Delivered Weekly To The Following Countries
| Export to | Continent | Port | Shipping Time |
|---|---|---|---|
|
UAE |
Asia | Jebel Ali Port | 20-25 Days |
|
USA |
North America | Port of Los Angeles | 33-47 Days |
|
Germany |
Europe | Port of Hamburg | 12 Days |
Frequently Asked Questions
What is the Monel Alloy Spherical Washer price?
Price depends on size, finish, testing and quantity. Contact us for a quote.
What ASTM F467 Monel Split Washer size range do you supply?
M3 to M64 as per ISO 7089, plus custom sizes.
Are Monel Flat Washer magnetic?
No, They are generally close to non-magnetic.
Which certificate comes with the order for Monel Alloy Sealing Washer?
Mill Test Certificate 3.1, with third-party inspection on request.
Warehouse Locations of Partner Suppliers
| Saudi Arabia | Nigeria | UAE | Oman | South Africa |
|---|---|---|---|---|
| USA | Angola | Algeria | Kenya | Tanzania |
| Ethiopia | Gabon | Zambia | Ghana | Morocco |
| New South Wales | Tunisia | Mozambique | Egypt | – |


