Monel 400 Washers Manufacturers & Suppliers in India
Unifit Fasteners manufactures high quality Monel 400 washers that will work in industrial and marine applications. Our washers are made of a strong nickel-copper alloy that is highly resistant to corrosion, moisture, and chemically aggressive media. Every washer is designed with precision to achieve even distribution of load, protect assembly surfaces and improve the overall performance of the fastening systems.
Our Monel 400 washer products come in a large variety of types, such as flat, spring and locking washers, to fit various installation requirements. Flat washers are suitable in the augmentation of bearing surface and averting wear, whereas spring washers are utilised in keeping a tension in vibrationally or impact-prone situations. The locking washers that we have provide safe anti-rotational reinforcement so that the fasteners remain taut even when there is a constant mechanical force.
surface and averting wear, whereas spring washers are utilised in keeping a tension in vibrationally or impact-prone situations. The locking washers that we have provide safe anti-rotational reinforcement so that the fasteners remain taut even when there is a constant mechanical force.
Monel 400 Flat Washers, ASTM F467 Monel Alloy Flat Washer, Monel Alloy 400 Machined Washer, Monel 400 Square Washer, Monel 400 Punched Washer, Monel Alloy 400 Washers, Monel 400 Round Washer, Supplier & Exporter of Monel 400 Washers
Our Monel 400 Washers provide high levels of mechanical strength, stability in high temperatures and consistent work in saltwater and chemical fringe. The following properties render them applicable in marine hardware, pumps, valves, heat exchangers, and other industrial assemblies. Under regular quality and accuracy production, Unifit Fasteners is guaranteed to offer reliable solutions to demanding applications.
Request QuoteTable of Contents
- What Are Monel 400 Washers?
- Types of Monel 400 Washers
- Other Types of Monel 400 Washer
- Monel Alloy 400 Washer Specification
- Monel Alloy 400 Washers Chemical Composition
- Monel Alloy 400 Washer Mechanical Properties
- Monel 400 Washer Equivalent Grade
- Monel 400 Washers Sizes & Dimensions
- Monel 400 Grade Washers Weight Chart
- Monel 400 Washer Tolerance Chart
- Industrial Applications of Monel 400 Washers
- Instant Quote on Monel 400 Washers
- Leading Manufacturer & Supplier of Monel 400 Washers
- Frequently Asked Questions About Monel 400 Washers
What Are Monel 400 Washers?
Monel 400 washers are high-performance fasteners that are fabricated using a strong nickel-copper alloy, which is characterised by an excellent corrosion barrier. They are designed to work in harsh industrial environments and are strong and stable even in extreme temperatures or in environments that contain large amounts of moisture or are subjected to other chemicals that are considered aggressive. Their light and strong design also avoids the stress corrosion cracking and makes them dependable in the long term. Due to these properties, Monel 400 washers are popular in the applications that experience failure of ordinary materials, and hence, they would be a stable selection when high-temperature, chemical, and marine systems are required.
Monel 400 Spring Washers, Monel 400 Plain Washer, Monel Alloy 400 Tab Washer, Monel 400 Tooth Washer, Nickel Alloy 400 Washer, DIN 2.4360 Taper Washers, Monel 400 Star Washers, JIS NW 4400 Washers Supplier in India.
Types of Monel 400 Washers
Monel 400 Round Washer
Monel 400 Square Washer
Monel Alloy 400 Lock Washer
Monel 400 Spherical Washer
Monel Alloy 400 Tab Washers
Monel 400 Fender Washer
Monel Alloy 400 Ogee Washer
Monel 400 Dome Tooth Washer
Monel 400 Countersunk Washer
Other Types of Monel 400 Washer
| Monel Alloy 400 Split Washer | Monel Alloy 400 Hex Slot Washer | Monel Alloy 400 Lock Washer |
| Monel Alloy 400 Split Washer | Monel Alloy WNR. 2.4360 Dome Tooth Washer | Monel Alloy UNS N04400 Countersunk Washer |
| Monel Alloy 400 Tab Washers | Monel Alloy 400 Round Washers | Monel Alloy 400 Square Washers |
| Monel Alloy 400 Machine Washer | Monel Alloy UNS N04400 Wedge Lock Washers | Monel Alloy 400 Bolt Washers |
| Monel Alloy 400 Bearing Lock Washers | Monel Alloy UNS N04400 Spherical Washe | Monel Alloy 400 Split Washer |
| Monel Alloy 400 Star washers | Monel Alloy 400 Sealing Washer | Monel Alloy 400 Flat Washer |
| Monel Alloy 400 Tab Washers | Monel Alloy UNS N04400 Dome Tooth Washer | Monel Alloy 400 Slot Washer |
| Monel Alloy UNS N04400 Washers | Monel Alloy 400 Star Washers | Monel Alloy 400 Countersunk Washers |
| Monel Alloy 400 Plain Washers | Monel Alloy 400 Dock Washer | Monel Alloy 400 Punched Washer |
| Monel Alloy 400 Flat Washer | Monel Alloy 400 Split Lock Washer | Monel Alloy UNS N04400 Fender Washers |
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Monel Alloy 400 Washer Specification
| Material | Monel 400 |
|---|---|
| Specification | ASTM F467 |
| Standards | IS / BS / ASTM |
| Size | M02 to M33 |
| Length | 3 mm to 200 mm |
Monel Alloy 400 Washers Chemical Composition
| Element | Content (%) |
|---|---|
| Nickel, Ni | 63.00 min |
| Silicon, Si | 0.5 max |
| Carbon, C | 0.3 max |
| Sulphur, S | 0.024 |
| Copper, Cu | 28-34 |
| Iron, Fe | 2.5 max |
| Manganese, Mn | 2 max |
Monel Alloy 400 Washer Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength (annealed) | 517-620 MPa | 75-90 ksi |
| Yield strength | 172-345 MPa | 25-50 ksi |
| Modulus of elasticity | 179 GPa | 26000 ksi |
| Poisson’s ratio | 0.32 | 0.32 |
Monel 400 Washer Equivalent Grade
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| Monel 400 | 2.4360 | N04400 | NW 4400 | NA 13 | МНЖМц 28-2,5-1,5 | NU-30M | NiCu30Fe |
Monel 400 Washers Sizes & Dimensions
Whether you're working in high-pressure pipelines or corrosive marine assemblies, our sizing ensures secure load distribution, vibration resistance, and long-term reliability. Below is a detailed size chart showing the inner diameter (A), outer diameter (B), thickness (C) and approximate weight per 100 pieces:
| Inside Diameter (A) | Outside Diameter (B) | Thickness (C) | Weight (lbs) per 100 pcs |
|---|---|---|---|
| 1/2" | 9/16" | 1 3/8" | 0.109" |
| 5/8" | 11/16" | 1 3/4" | 0.134" |
| 3/4" | 13/16" | 2" | 0.148" |
| 7/8" | 15/16" | 2 1/4" | 0.165" |
| 1" | 11/16" | 2 1/2" | 0.165" |
| 1 1/8" | 1 1/4" | 2 3/4" | 0.165" |
| 1 1/4" | 1 3/8" | 3" | 0.165" |
| 1 3/8" | 1 1/2" | 3 1/4" | 0.180" |
| 1 1/2" | 1 5/8" | 3 1/2" | 0.180" |
| 1 5/8" | 1 3/4" | 3 3/4" | 0.180" |
| 1 3/4" | 1 7/8" | 4" | 0.180" |
| 1 7/8" | 2" | 4 1/4" | 0.180" |
| 2" | 2 1/8" | 4 1/2" | 0.180" |
| 2 1/4" | 2 3/8" | 4 3/4" | 0.220" |
| 2 1/2" | 2 5/8" | 5" | 0.238" |
| 2 3/4" | 2 7/8" | 5 1/4" | 0.259" |
| 3" | 3 1/8" | 5 1/2" | 0.284" |
Note: Custom sizes, special thicknesses and non-standard OD/ID configurations can be manufactured on request to meet specific application needs.
Monel 400 Grade Washers Weight Chart (Per 100 Pieces)
At Unifit Fasteners, we follow standard IS and DIN specifications to ensure dimensional uniformity and mechanical integrity across all washer types like plain, heavy, machined, spring and special profile washers for structural applications.The table below provides estimated weight (in kilograms) per 100 pieces across different washer standards and sizes:
| SIZE | PLAIN PUNCHED WASHER IS:2016 |
HEAVY WASHER IS:6610 |
MACHINED WASHER IS:2016 |
SQUARE TAPER WASHERS | SPRING WASHER FLAT SECTION IS:3063-72 | SPRING WASHER SQUARE SECTION IS:6735-72 DIN: 7980 |
Size (Inches) | PLAIN PUNCHED WASHER BS:3410 TABLE 7 |
|||
|---|---|---|---|---|---|---|---|---|---|---|---|
| MACHINED | HIGH STRENGTH FRICTION GRIP | ||||||||||
| FOR CHANNELS IS:5372-75 | FOR I-BEAM IS:5374-75 | TYPE-B (CHANNELS) IS:6649-85 | TYPE-C (I-BEAMS) IS:6649-85 | ||||||||
| M-3 | 0.01 | 0.01 | |||||||||
| M-4 | 0.02 | 0.02 | |||||||||
| M-5 | 0.04 | 0.04 | 0.03 | 0.03 | |||||||
| M-6 | 0.11 | 0.11 | 0.08 | 0.04 | 1/4" | 0.21 | |||||
| M-8 | 0.20 | 0.21 | 1.10 | 1.20 | 0.16 | 0.11 | 5/16" | 0.35 | |||
| M-10 | 0.39 | 1.60 | 0.40 | 1.00 | 1.10 | 0.25 | 0.20 | 3/8" | 0.48 | ||
| M-12 | 0.58 | 1.90 | 0.62 | 2.00 | 2.20 | 2.00 | 1.80 | 0.38 | 0.23 | 1/2" | 1.07 |
| M-14 | 0.82 | 0.60 | 0.38 | ||||||||
| M-16 | 1.06 | 2.90 | 1.13 | 3.40 | 3.75 | 9.00 | 8.50 | 0.89 | 0.59 | 5/8" | 1.85 |
| M-18 | 1.27 | 0.97 | 0.66 | ||||||||
| M-20 | 1.64 | 4.40 | 1.72 | 5.80 | 6.70 | 8.50 | 8.00 | 1.52 | 1.23 | 3/4" | 2.91 |
| M-22 | 1.75 | 7.50 | 7.00 | 1.65 | 1.36 | 7/8" | 4.27 | ||||
| M-24 | 3.11 | 6.30 | 3.30 | 13.50 | 16.00 | 6.50 | 6.00 | 2.62 | 1.81 | 1" | 6.13 |
| M-27 | 3.94 | 8.00 | 4.23 | 12.50 | 15.00 | 12.00 | 11.50 | 2.87 | 2.06 | 1.1/8" | 7.69 |
| M-30 | 5.05 | 10.10 | 5.36 | 16.50 | 18.70 | 17.50 | 16.00 | 4.43 | 3.20 | 1.1/4" | 9.90 |
| M-33 | 7.10 | 12.00 | 7.54 | 21.00 | 23.50 | 23.00 | 22.50 | 6.30 | 3.50 | ||
| M-36 | 8.73 | 14.60 | 9.20 | 25.50 | 29.20 | 26.50 | 26.00 | 6.73 | 5.25 | 1.1/2" | 17.24 |
| M-39 | 12.60 | 16.70 | 13.30 | 28.30 | 34.50 | 7.17 | 5.61 | ||||
| M-42 | 17.50 | 20.10 | 18.30 | 11.10 | 8.00 | ||||||
| M-45 | 21.20 | 22.20 | 22.00 | 11.70 | 8.53 | ||||||
| M-48 | 28.40 | 26.00 | 29.40 | 12.30 | 9.00 | 2" | 27.78 | ||||
| M-52 | 31.90 | 33.00 | 18.20 | ||||||||
| M-56 | 47.90 | 19.30 | |||||||||
| M-60 | 51.60 | 20.30 | |||||||||
| M-64 | 55.40 | 21.80 | |||||||||
| M-68 | 57.40 | ||||||||||
| M-72 | 63.40 | 24.00 | |||||||||
Monel 400 Washer Tolerance Chart
The chart below outlines standard dimensional tolerances for inside diameter, outside diameter, and thickness ensuring a reliable fit and consistent performance across demanding industrial environments.
| Washer Size (Nominal) | Inside Diameter Tolerance (± mm) | Outside Diameter Tolerance (± mm) | Thickness Tolerance (± mm) |
|---|---|---|---|
| M6 | ±0.2 | ±0.3 | ±0.15 |
| M8 | ±0.2 | ±0.3 | ±0.15 |
| M10 | ±0.3 | ±0.4 | ±0.2 |
| M12 | ±0.3 | ±0.4 | ±0.2 |
| M16 | ±0.4 | ±0.5 | ±0.25 |
| M20 | ±0.5 | ±0.6 | ±0.3 |
Industrial Applications of Monel 400 Washers
Monel 400 washers are trusted in industries where corrosion, heat and mechanical stress are constant challenges. Their excellent resistance to seawater, acids and alkaline solutions makes them ideal for load distribution and sealing in harsh environments.
Key Application Areas:
- Marine & Offshore
- Chemical Processing
- Oil & Gas
- Aerospace
- Power Generation
- Food & Beverage
- Pharmaceutical
- Water Treatment & Desalination
- Heat Exchangers & Boilers
- Pulp & Paper Industry
Instant Quote on Monel 400 Washers – Delivered Globally!
Looking for high-performance Monel 400 Washers for your next industrial project? At Unifit Fasteners, we offer precision-crafted washers made from corrosion-resistant UNS N04400 alloy trusted across marine, chemical and offshore sectors.
Whether you need standard sizes or custom specifications, we ensure fast turnaround, global shipping, and full compliance with ASTM and DIN standards. Submit your requirements below and our team will provide a competitive, no-obligation quote tailored to your needs.
Fast Response. Trusted Quality. Global ReachLeading Monel 400 Washers Manufacturer, Supplier & Global Exporter
At Unifit Fastener, we specialize in the production and supply of Monel 400 washers designed for durability, dimensional accuracy, and resistance to aggressive corrosive environments. As a trusted Monel 400 washers manufacturer in India, our offerings cater to a wide spectrum of industries including offshore platforms, petrochemical units and power plants.
With a deep understanding of alloy engineering and international fastener standards, we deliver both standard and custom washer solutions be it flat, spring or machined types tailored to exact specifications. Unifit stands among the top Monel 400 washers suppliers and exporters, providing reliable supply chains and compliant documentation to clients across Europe, the Middle East, Southeast Asia, and North America.
Whether your requirement is project-based or ongoing procurement, Unifit ensures timely delivery, superior build quality and competitive pricing for every order.
Request QuoteFrequently Asked Questions About Monel 400 Washers
What are Monel 400 washers used for?
Monel 400 washers are primarily used in marine, chemical processing, power generation and offshore environments due to their high corrosion resistance and mechanical durability.
How does Monel 400 compare to stainless steel for washers?
Unlike stainless steel, Monel 400 offers superior resistance to saltwater, acids and alkalis. It performs better in highly corrosive environments and has higher strength retention over a wider temperature range.
Do you supply washers for critical offshore or nuclear applications?
Absolutely. Our Monel 400 washers are used in critical sectors such as offshore rigs and nuclear facilities due to their reliability, strength and compliance with stringent industry norms.
What is the lead time for international orders of Monel 400 washers?
Typical lead times range from 3–10 working days depending on size, quantity and customization. We offer global shipping with export documentation support.