Why Buyers Source Cupro Nickel 90/10 Washers From Ganpat Industrial?
90/10 Cu-Ni, Mill-Direct
We source UNS C70600 heats with full chemistry traceability
One PO, Every Type
Flat • Spring • Wave • Disc • High Collar ship in one order
Seawater-Grade Certified
ISO 9001 • PED • NACE MR0175 heats on request
Bio-Fouling Tested
PMI • salt spray • dimensional checks every dispatch
Quote In 24 Hours
Standard sizes ship out within the same week
Cupro Nickel 90/10 Washer Overview
- 1Type: Flat, Spring, Wave, Helical, Disc, Thick Flat, High Collar
- 2Size Range: M6 to M36 • OD 12 mm to 66 mm • per ISO 7089
- 3Common Grades: UNS C70600, ASTM B151, Werkstoff 2.0872, Cu-Ni 90/10 SAE
- 4Finish: Natural Mill Finish, Bright, Polished, Anti-Fouling Coated
- 5Standards: ASTM B151, ASME SB151, DIN 125, DIN 127, ISO 7089, ISO 7093
- 6Origin: Indian origin • European origin • Grade B8 Class 2 USS
Or call our Mumbai office: +91 22 6743 7134 • Fast dispatch on ready stock sizes
Cupro Nickel 90/10 Washers combine strong copper and nickel. Added iron and manganese build durable protective layers. They easily outlast standard carbon steel and brass. Ganpat Industrial manufactures UNS C70600 washers in Mumbai. They use mill certified strips for every order. They produce flat spring wave and disc profiles. Ship repair yards and desalination plants choose them. Offshore platforms use them to stop biofouling damage. Power plant condenser teams prevent severe seawater pitting. Ganpat Industrial brings 25 years of industry experience. They supply stock and custom orders very quickly. They export across India UAE and Middle East.
Mumbai · Cupro Nickel 90/10 Washers Manufacturer India
Cu-Ni 90/10 Washers That Outlast Steel And Brass In Seawater Duty
Ganpat Industrial forges and supplies ASTM B151 UNS C70600 Washers. We serve seawater and offshore buyers across India UAE and the Middle East.
- ✓ISO 9001:2015
- ✓ISO 14001:2015
- ✓OHSAS 18001:2007
- ✓PED Certified
- ✓Petrofac Approved
Cupro Nickel 90/10 Flat & Spring Washers Manufacturer & Exporter In India As Per ASTM B151
Cupro Nickel 90/10 Washer Specification
UNS C70600 Thick Flat Washer Material
- UNS C70600
- Werkstoff 2.0872
- ASTM B151
- ASME SB151
ASME SB151 Cu Ni 90/10 Disc Spring Washer Testing
- PMI Testing
- Salt Spray Test
- Dimensional Check
- Third-Party Inspection
Cupro Nickel 90/10 Grade B8 Class 2 USS High Collar Flat Washer Origin
- Indian Origin
- European Origin
- Grade B8 Class 2 USS
- Traceable To Heat Number
Cu Ni 90/10 Split Spring Washer Size Range
- ID: M6 – M36
- OD: 12 – 66 mm
- Thickness: 1.0 – 5.0 mm
- Custom sizes on drawing
Cu-Ni 90/10 SAE Wave Spring Washer Documentation
- Mill Test Certificate 3.1
- NABL Lab Report
- Packing List
- Certificate Of Origin
2.0872 Helical Spring Washer Surface Finish
- Natural Mill Finish
- Bright Rolled
- Polished
- Anti-Fouling Coated
Copper Nickel 90/10 Thick Flat Washer Production Route
- Precision Blanking
- CNC Punching
- Cold Forming (Spring/Wave)
- Deburring & Tumbling
ASTM B151 Copper Nickel 90/10 Disc Spring Washer Governing Standard
- ASTM B151
- ASME SB151
- DIN 125 / DIN 127
- ISO 7089 / 7090 / 7093
Cupro Nickel 90/10 High Collar Flat Washer Packaging
- Waterproof Poly Lined Bags
- Wooden Boxes / Pallets
- Size & Batch Wise Labelling
- Export Worthy Seaworthy Packing
UNS C70600 Thick Flat Washer Size Chart
We, a Cupro Nickel 90/10 Washers Supplier in India, list ID OD and thickness for each size. All sizes follow the ISO 7089 normal series.
| CUPRO NICKEL 90/10 WASHER — ISO 7089 NORMAL SERIES (MM) | |||
|---|---|---|---|
| Nominal Bolt Size | Inner Dia. (ID) | Outer Dia. (OD) | Thickness |
| M3 | 3.2 | 7.0 | 0.5 |
| M4 | 4.3 | 9.0 | 0.8 |
| M5 | 5.3 | 10.0 | 1.0 |
| M6 | 6.4 | 12.0 | 1.6 |
| M8 | 8.4 | 16.0 | 1.6 |
| M10 | 10.5 | 20.0 | 2.0 |
| M12 | 13.0 | 24.0 | 2.5 |
| M14 | 15.0 | 28.0 | 2.5 |
| M16 | 17.0 | 30.0 | 3.0 |
| M20 | 21.0 | 37.0 | 3.0 |
| M24 | 25.0 | 44.0 | 4.0 |
| M30 | 31.0 | 56.0 | 4.0 |
| M36 | 37.0 | 66.0 | 5.0 |
Dimensions per ISO 7089 normal series • custom ID/OD/thickness produced against buyer drawing on request
Need A Custom Cu-Ni 90/10 Ring Or Disc?Share your drawing and get a factory price within 24 hours.
Types Of Copper Nickel 90/10 Washers
Cupro Nickel 90/10 Split Spring Washer
DIN 127
Cu Ni 90/10 Wave Spring Washer
DIN 137B
Copper Nickel 90/10 Disc Spring Washer
DIN 2093
ASTM B151 Thick Flat Washer
ISO 7093
ASME SB151 Square Washer
Square Plate
Cu-Ni 90/10 SAE Fender Washer
Wide OD
2.0872 High Collar Flat Washer Weight Chart
| APPROX. WEIGHT PER 100 PCS — FLAT WASHER, ISO 7089 SERIES | ||
|---|---|---|
| Bolt Size | Weight Per 100 Pcs (Kg) | Density Used (g/cm³) |
| M6 | 0.116 | 8.94 |
| M8 | 0.208 | 8.94 |
| M10 | 0.407 | 8.94 |
| M12 | 0.714 | 8.94 |
| M14 | 0.981 | 8.94 |
| M16 | 1.286 | 8.94 |
| M20 | 1.954 | 8.94 |
| M24 | 3.680 | 8.94 |
| M30 | 6.106 | 8.94 |
| M36 | 10.480 | 8.94 |
Calculated at UNS C70600 density 8.94 g/cm³ on ISO 7089 dimensions • actual weight varies ±5% with tooling and thickness class
What Actually Moves The Price
◆Order Quantity
◆Type (Flat / Spring / Wave)
◆Finish & Testing
Request A Live Cupro Nickel 90/10 Washer Quote NowGet factory pricing and ready stock on standard sizes. Repeat buyers face no minimum order penalty.
Application Of ASTM B151 Copper Nickel 90/10 Wave Spring Washer
We are a well-known washer manufacturer in India. Our washers resist seawater and biofouling daily.
Washers seal pump joints against saltwater intrusion.
Rated for constant saltwater spray and vibration.
Withstand brine exposure without pitting or corrosion.
Hold condenser joints tight under thermal cycling.
Built for harsh, corrosive offshore rig conditions.
Seal cooling lines against heat and moisture.
Meet strict naval-grade corrosion resistance standards.
Resist chemical attack in brine handling lines.
Buying In Bulk For A Marine Project?Send your BOQ and get factory pricing with MTC 3.1 for fast dispatch.
ASME SB151 Cu Ni 90/10 Disc Spring Washer Pressure Rating
Our washers match the flange class and seawater duty. This Cupro Nickel 90/10 Washers Supplier in India chart shows our rated operating range.
Flange Duty Compatibility
ANSI 150–300
PN10 – PN40
Max Continuous Temperature
300°C
572°F
Max Seawater Flow Velocity
3.5–4.5 m/s
Erosion Limit
Corrosion Allowance
Nil Required
Self-Passivating
Cu-Ni 90/10 SAE Split Spring Washer Schedule Chart
This schedule sorts rings by OD and thickness. This Cupro Nickel 90/10 Washers Manufacturer in India helps match the ring to joint load.
| Bolt Size | Light Duty (Small Series) | Standard Duty (Normal Series) | Heavy Duty (Large Series) | |||
|---|---|---|---|---|---|---|
| OD (mm) | Thk (mm) | OD (mm) | Thk (mm) | OD (mm) | Thk (mm) | |
| M6 | 11.0 | 1.0 | 12.0 | 1.6 | 18.0 | 1.6 |
| M8 | 15.0 | 1.0 | 16.0 | 1.6 | 24.0 | 2.0 |
| M10 | 18.0 | 1.6 | 20.0 | 2.0 | 30.0 | 2.5 |
| M12 | 20.0 | 2.0 | 24.0 | 2.5 | 37.0 | 3.0 |
| M16 | 28.0 | 2.5 | 30.0 | 3.0 | 50.0 | 3.0 |
| M20 | 34.0 | 3.0 | 37.0 | 3.0 | 60.0 | 4.0 |
| M24 | 44.0 | 4.0 | 44.0 | 4.0 | 72.0 | 5.0 |
Small = ISO 7091 • Normal = ISO 7089 • Large = ISO 7093 • custom thickness on drawing
Cupro Nickel 90/10 Helical Spring Washer Chemical Composition
Per ASTM B151 / UNS C70600
Copper
Balance (min 86.5%)
Nickel + Cobalt
9.00–11.00%
Iron
1.00–1.80%
Manganese
≤ 1.00%
Zinc
≤ 1.00%
Lead
≤ 0.05%
Phosphorus
≤ 0.02%
Sulphur
≤ 0.02%
Carbon
≤ 0.05%
Cu-Ni 90/10 Thick Flat Washer Mechanical Properties
Annealed Condition
Tensile Strength (MPa)
310–480
Load Bearing
Yield Strength (MPa)
105–240
Design Limit
Elongation (50mm)
25–35%
Ductility
Hardness
65–100 HRB
Wear Resistance
Density (g/cm³)
8.94
0.323 lb/in³
Melting Range
1170–1240°C
2140–2260°F
Monel 400 Pipe Fittings Delivered Weekly to the Following Countries
| Export To | Countries | Continent | Ports | Shipping Time |
|---|---|---|---|---|
 |
Germany | Europe | Wilhelmshaven | 20 days |
 |
Vietnam | Asia | Van Phong Port | 10 days |
 |
Malaysia | Asia | Port Klang | 10 days |
Monthly Delivery of Monel 400 Pipe Fittings to Below Countries
| Export To | Countries | Continent | Ports | Shipping Time |
|---|---|---|---|---|
 |
Saudi Arabia | Asia | King Fahd | 7 days |
 |
Thailand | Asia | Laem Chabang | 7 days |
Cupro Nickel 90/10 Grade B8 Class 2 USS High Collar Flat Washer Equivalent Grades
ASTM / ASME
- B151 / SB151
- UNS C70600
- B466 / B467
- Grade B8 Class 2 USS
EN / DIN
- CuNi10Fe1Mn
- Werkstoff 2.0872
- CW352H
BS
- BS 2871 CN102
- CuNi10Fe1Mn
- BS EN 12451
JIS
- C7060
- JIS H3300
- JIS H3320
IS
- IS 10943
- Cu-Ni 90/10
- IS 1570 (Part 5)
GB
- GB/T 8890
- BFe10-1-1
- GB/T 5231
Dealing With A Chloride Or Seawater Duty Joint Issue?Describe your environment and we will recommend the right grade, finish, and testing.
Copper Nickel 90/10 Wave Spring Washer HSN Code & Price Guide
HSN Heading
7418
Copper alloy fasteners & washers
Flat / Plain Washer
7415 39 00
Non-threaded: other copper washers
Spring / Wave Washer
7415 21 00
Non-threaded: spring & wave washers
GST Rate
18%
Standard rate on copper-nickel washers
Cu-Ni 90/10 Washer Test Certificates
Mill Test Certificate 3.1
Every dispatch includes a traceable EN 10204 3.1 certificate. We check it against ASTM B151 chemistry and mechanical limits.
Cupro Nickel 90/10 Washer Material Testing
We are a reliable washer supplier in India. We test every batch before dispatch.
PMI Testing
We run Positive Material Identification on every lot. This confirms the correct nickel content.
Salt Spray Test
We verify pitting and biofouling resistance per ASTM B117
Dimensional Check
We verify OD ID and thickness against drawing tolerance
Hardness Test
This confirms annealed condition meets ASTM B151 limits
Visual & Surface Check
We screen for burrs pitting and finish defects
Third-Party Inspection
TPI is available for large export orders
Cu-Ni 90/10 Washer Documentation Offered
NABL Lab Report
These are independent chemistry and mechanical test results
On Request
Packing List
This lists piece count weight and carton breakup
Every Order
Certificate Of Origin
Used for customs clearance and import duty
Export Orders
Commercial Invoice
This invoice matches your PO. It shows HSN and GST breakup.
Every Order
Cupro Nickel 90/10 Washer Export Packaging
Poly Bag & Carton
This is standard packing for small orders
Wooden Pallet Box
Used for bulk order quantities
Export Vacuum Pack
This is moisture sealed for long sea transit
Custom Labelling
We mark the PO number per buyer request
Frequently Asked Questions
Is a Cupro Nickel 90/10 Helical Spring Washer magnetic?
No. This alloy is non-magnetic in every standard temper.
Why choose Cu-Ni 90/10 Wave Spring Washer over stainless steel for seawater joints?
90/10 Cu-Ni resists pitting crevice attack and biofouling better. It beats 300 series stainless without cathodic protection.
What is the minimum order quantity for CuNi 90/10 Split Spring Washer?
We supply from small trial lots to full containers. Share your size and quantity for factory pricing.
We Collaborate With Traders in the Following Cities
Direct Dispatch From Mumbai To Your Nearest Hub
| City | Country |
|---|---|
| Texas | USA |
| California | USA |
| Al Jubail | Saudi Arabia |
| Dubai | UAE |
| Dammam | Saudi Arabia |
| Abu Dhabi | UAE |
| Riyadh | Saudi Arabia |
| Houston | USA |
| Al Khobar | Saudi Arabia |
| Indiana | USA |
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