Special Alloys
Monel 400 Alloy
Depend on PML Monel 400 alloy for outstanding corrosion resistance and durability in marine, aerospace, and harsh chemical environments.
Engineered for strength, toughness, and reliable performance.
Backed by excellent weldability and cold-working capability, perfect for demanding offshore, oil & gas, and aerospace uses, with proven integrity under extreme conditions.
Ingot Manufacturing Process
High-quality Monel 400 alloy ingots produced from virgin elements using Vacuum Induction Melting (VIM).
RFQ from Customer
Alloy chemistry and ingot specifications are finalized as per application requirements.
Alloy Design/Planning
As per customer requirements, mould design carried out and planned for charge preparation, charge sequences in VIM furnace. Careful selection of raw materials are the prime factor to achieve specified chemistry of an alloy.
Alloy Melting by VIM
Virgin elements are charged into the VIM furnace either in air or under vacuum, with precise adjustments made for trace element additions during melting.
Process & Quality Control
The melt is poured under vacuum into precision-engineered molds using an automatic tilting mechanism for defect-free solidification.
Primary Finishing
Post-casting processes include surface treatment, cropping, and preparation of ingots for downstream processing.
Testing & Packaging
Every batch is tested for chemical composition by Spark- OES / wet analysis / Gas analysis, and physical compliance as per customer specification before secure packaging.
Technical Specifications
Chemical Composition (Typical):
| Elements | Chemical composition Range (Wt%) | |
|---|---|---|
| Min | Max | |
| Copper | 28.00 | 34.00 |
| Iron | 0.00 | 2.00 |
| Manganese | 0.00 | 2.00 |
| Silicon | 0.00 | 0.50 |
| Carbon | 0.00 | 0.30 |
| Sulphur | 0.00 | 0.024 |
| Nickel | Remainder | |
| Oxygen | 0.00 | 0.02 |
| Nitrogen | 0.00 | 0.02 |
Properties
| Alloy | Mechanical properties* | PML alloy: as cast* | After Heat treatment* |
|---|---|---|---|
| PML Monel 400 alloy | Vicker Hardness (VHN) | 150 - 200 | - |
| Tensile Strength Ultimate (UTS),MPa | 517 - 620 | - | |
| Tensile Strength Yield (YS), MPa | 210 | - | |
| Elongation (%) | 25 - 30 | - | |
| *Typical | Reduction of Area | - | - |
The Unconquerable Alloy for Marine and Chemical Extremes
This high-strength nickel-copper alloy is engineered to thrive in the harshest marine and chemical processing environments, offering the ultimate defense against stress-corrosion cracking and pitting.
Technical Specifications
Process Capability
Consistent production of high-quality ingots, optimized for mold and tool steel applications.
| Input : Batch size | Output | Alloying Elements | Chemistry tolerance | Impurities Max |
|---|---|---|---|---|
| 30 kgs to 600 Kgs | Ingot of required shape as per customers requirement | Cu, Fe, Mn | +/- 0.5 % for Higher level % (Above 2 digit) and +/- 0.3 % for lower level % (Single digit) | Oxygen < 25ppm Hydrogen < 3ppm Nitrogen < 50ppm All other impurities < 50 ppm |
Benefits:
With over six decades of expertise, PML delivers high-performance component technologies and precision solutions trusted across critical industries.
1
Flexible batch sizes
2
Consistent, reproducible high quality
3
Minimal gas impurity levels
4
Evaporation of volatile non-ferrous impurities (Sn, Zn, Pb, Sb)
5
Reduced non-metallic inclusions
6
Ready-to-use ingots for powder metallurgy, strip production, rolling, forging, etc.
Application
Used extensively in:
1
Marine environments and seawater components
2
Subsea equipment and oil & gas systems
3
Aerospace parts and fasteners
4
Heat exchangers, condensers, pumps, and valves
5
Medical and electronic device components
6
Environments with hydrogen sulfide and sour gas exposure
Trust, Reliability & Quality
With over six decades of expertise, PML delivers high-performance component technologies and precision solutions trusted across critical industries.
ISO 45001
Occupational Health and Safety (OH&S) management systems
ISO 14001
Environmental Management Systems (EMS)
ISO 9001
Quality Management Systems (QMS)
IATF 16949
International Standard for Automotive Management Systems
AS 9100
Aerospace Quality Management System (QMS)
Frequently Asked Questions
It’s a nickel-copper alloy known for its superior corrosion resistance, especially in marine and chemical environments.
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