Monel 405 Plates: High-Performance Alloy for Diverse Applications
Monel 405 Plates, a nickel-copper alloy, are recognized for their exceptional resistance to corrosion, strength, and durability. These plates are an enhanced version of Monel 400, with improved machinability, making them a preferred choice for industries requiring materials that can withstand harsh environments. As an established exporter and supplier of 405 Monel Plates, ASC LLP provides high-quality products to meet the diverse needs of our global clientele.
What Are Monel 405 Plates?
Monel 405 Plates are made from a nickel-copper alloy known as Monel, which was developed to combine the advantages of both nickel and copper. Monel 405 is a variant of Monel 400 with added sulfur, which enhances its machinability. This alloy exhibits excellent corrosion resistance, high strength, and toughness, making it suitable for a wide range of applications, especially in marine and chemical environments.
Monel 405 is particularly noted for its ability to resist the corrosive effects of seawater, acids, and alkalis. This makes it an ideal material for use in industries such as oil and gas, marine engineering, chemical processing, and aerospace.

Properties of 405 Monel Plates
405 Monel Plates possess a unique combination of mechanical and chemical properties that make them suitable for demanding applications. The key properties include:
- Corrosion Resistance: Monel 405 are highly resistant to a variety of corrosive environments, including seawater, hydrofluoric acid, sulfuric acid, and alkalis. This resistance extends to both oxidizing and reducing environments, ensuring long-term durability in harsh conditions.
- High Strength and Toughness: The alloy’s high nickel content provides excellent strength and toughness, even at sub-zero temperatures. This makes 405 Monel Plates suitable for use in cryogenic applications and other extreme environments.
- Good Machinability: The addition of sulfur in Monel 405 enhances its machinability compared to Monel 400. This property is particularly valuable in applications where precision machining is required.
- Thermal Stability: Monel 405 maintains its strength and structural integrity at elevated temperatures, making it suitable for use in high-temperature environments.
- Non-Magnetic: 405 Plates are non-magnetic, making them ideal for applications where magnetic interference needs to be minimized.
Advantages of Using 405 Monel Plates
Choosing 405 Monel Plates for your applications offers several advantages:
- Extended Service Life: The superior corrosion resistance of 405 Monel ensures that they maintain their structural integrity and appearance over long periods, even in aggressive environments. This translates to reduced maintenance costs and longer service life for equipment.
- Versatile Applications: The combination of high strength, toughness, and corrosion resistance makes 405 Monel Plates suitable for a wide range of industries, including oil and gas, marine, chemical processing, and aerospace.
- Ease of Fabrication: Monel 405 can be easily fabricated, welded, and machined, allowing for the creation of complex components and assemblies with precision.
- High-Temperature Performance: The alloy’s ability to retain its mechanical properties at high temperatures makes it ideal for applications involving heat, such as in the petrochemical and power generation industries.
- Non-Magnetic Properties: The non-magnetic nature of Monel 405 is beneficial in applications where magnetic interference can affect performance, such as in certain electronic and marine applications.


Schedule and Size Chart
Thickness (mm) | Width (mm) | Length (mm) |
3.0 – 6.0 | 1000 – 2000 | 2000 – 6000 |
6.0 – 12.0 | 1000 – 2000 | 2000 – 6000 |
12.0 – 25.0 | 1000 – 2000 | 2000 – 6000 |
25.0 – 50.0 | 1000 – 2000 | 2000 – 6000 |
50.0 – 100.0 | 1000 – 2000 | 2000 – 6000 |
Mechanical Properties Chart
Property | Value |
Tensile Strength | 550 – 620 MPa (79,800 – 89,900 psi) |
Yield Strength (0.2% Offset) | 240 – 345 MPa (34,800 – 50,100 psi) |
Elongation | 35% – 50% |
Hardness | Rockwell B 80 – 90 |
Modulus of Elasticity | 179 GPa (26,000 ksi) |
Specifications Chart
Specification | Standard |
ASTM | ASTM B127 |
ASME | ASME SB-127 |
UNS | N04405 |
DIN | 2.4360 |
BS | NA 13 |
SAE | AMS 4674 |
Tensile Strength Chart
Test Temperature | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (% in 50mm) |
Room Temperature | 550 – 620 | 240 – 345 | 35 – 50 |
Elevated Temperature | Varies depending on exact conditions, generally lower values due to material softening. |
Heat Treatment Requirement Chart
Heat Treatment | Temperature Range (°C) | Cooling Method | Purpose |
Annealing | 760 – 920°C | Air cooling | To soften the material and relieve stresses. |
Stress Relieving | 480 – 620°C | Air cooling | To reduce internal stresses without significant softening. |
Chemical Composition Chart
Element | Composition (%) |
Nickel (Ni) | 63.0 – 70.0 |
Copper (Cu) | 28.0 – 34.0 |
Iron (Fe) | 2.5 max |
Manganese (Mn) | 2.0 max |
Carbon (C) | 0.3 max |
Sulfur (S) | 0.025 – 0.06 |
Silicon (Si) | 0.5 max |
Physical Properties Chart
Property | Value |
Density | 8.80 g/cm³ (0.318 lb/in³) |
Melting Point | 1350 – 1390°C (2460 – 2530°F) |
Specific Heat Capacity | 427 J/kg°C |
Thermal Conductivity | 21.8 W/m°C at 20°C |
Electrical Resistivity | 0.047 Ohm mm²/m |
Magnetic Permeability | 1.004 |
Application Chart
Industry | Application |
Marine Engineering | Components like propeller shafts, pump shafts, and fasteners exposed to seawater. |
Chemical Processing | Equipment like heat exchangers, reactors, and piping systems resistant to corrosive chemicals. |
Oil & Gas Industry | Components such as valves, fittings, and pipelines in sour gas and crude oil environments. |
Aerospace Industry | Aircraft and spacecraft components requiring strength and corrosion resistance. |
Power Generation | Turbine blades, generator components, and other parts in nuclear and fossil fuel power plants. |
405 Monel Plates Exporters and Suppliers
As a leading exporter and supplier of 405 Monel Plates, ASC LLP is committed to providing our customers with the highest quality products that meet international standards. Our extensive inventory and global supply network enable us to deliver Monel 405 Plates to customers in a timely and efficient manner.
We work closely with our clients to understand their specific needs and provide tailored solutions that meet their requirements. Our commitment to quality, reliability, and customer satisfaction has made us a trusted partner in the industry.
405 Monel Plates Manufacturer, Traders and Stockists
ASC LLP also serves as a prominent trader and stockist of 405 Monel Plates. Our well-established supply chain and inventory management systems ensure that we can meet the demands of our customers, whether they require small quantities for prototyping or large volumes for production.
Our knowledgeable team is always available to assist with material selection, technical support, and logistics, ensuring that our customers receive the right products at the right time.
Why ASC LLP Is The Best Choice For Buying Monel 405 Plates?
When it comes to sourcing high-quality 405 Plates, ASC LLP is the name you can trust. Our commitment to excellence is reflected in every aspect of our business:
- Quality Assurance: We adhere to stringent quality control processes to ensure that every plate we supply meets the highest standards of quality and performance.
- Global Reach: With a strong presence in international markets, we have the capability to supply Monel 405 to customers around the world.
- Expertise: Our team of experts has extensive knowledge and experience in the materials industry, enabling us to provide valuable insights and support to our customers.
- Customer Focus: We prioritize customer satisfaction and work diligently to exceed our clients’ expectations in terms of product quality, delivery, and service.
- Competitive Pricing: We offer competitive pricing on our entire range of Monel 405 Plates, ensuring that our customers receive the best value for their investment.
405 Monel Plates are an exceptional choice for industries that require materials with superior corrosion resistance, high strength, and excellent machinability. As a leading exporter, supplier, trader, and stockist of Monel 405 Plates, ASC LLP is proud to offer high-quality products that meet the diverse needs of our global customers.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality Monel 405 Plates. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.