Super Alloys
Rely on PML IN713C superalloy for exceptional heat and corrosion resistance across demanding environments.


Specifically suitable in turbine blades and vanes, jet engine and gas turbine components, exhaust systems, and aerospace applications where high-temperature strength, thermal stability, and corrosion resistance are critical. These alloys are also suitable for power generation, automotive, and chemical processing industries.
Melting of virgin elements to make ingots of IN713C alloy by Vacuum Induction melting (VIM)
Alloy chemistry and ingot specifications are finalized as per application requirements.
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.
Virgin elements are charged into the VIM furnace either in air or under vacuum, with precise adjustments made for trace element additions during melting.
The melt is poured under vacuum into precision-engineered molds using an automatic tilting mechanism for defect-free solidification. With online temperature, Spectro, and oxygen data, we meticulously control melting and refining to achieve the specified ingot composition.
Post-casting processes include surface treatment, cropping, and preparation of ingots for downstream processing.
Every batch is tested for chemical composition by Spark- OES / wet analysis / Gas analysis, and physical compliance as per customer specification before secure packaging.
Properties
Performs under pressure—resistant to saline, heat, and mechanical stress in critical environments.
Mechanical properties | PML IN 713C alloy: as cast* | PML IN 713LC alloy: as cast* |
Rockwell Hardness (HRC) | 30 - 42 HRC | 30 - 42 HRC |
Tensile Strength Ultimate (UTS) | 1075 MPa | 1100 MPa |
Tensile Strength Yield (YS) | 620 - 670MPa | 670- 750MPa |
Elongation Break | 3 - 5% | 4 - 7% |
Process Capability
Custom ingot shapes and batch sizes tailored to exact customer specifications.
Input Batch size | Output | Alloying Elements | Chemistry tolerance | Impurities Max |
30kgs to 600kgs | Ingot of required shape as per customers requirement | Ni, Mo, Cr, Al, Nb, Mo, Ti, Zr, B | +/- 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 |

Chemical analysis performed using Ametek Spectromaxx & 100% PMI testing via X-MET8000 XRF Analyzer
Technical Specifications
Engineered to meet demanding specs with consistent quality and adaptable performance.
Element | IN 713C Min-Max (Wt%) | IN 713LC Min-Max (Wt%) |
Carbon | 0.08 – 0.20 | 0.00 – 0.025 |
Silicon | 0.50 max | 0.20 max |
Manganese | 0.25 max | 0.10 max |
Phosphorus | 0.015 max | 0.008 max |
Sulphur | 0.015 max | 0.010 max |
Chromium | 12.00 – 14.00 | 11.75 – 12.50 |
Iron | 2.50 max | 0.50 max |
Molybdenum | 3.80 – 5.20 | 4.20 – 5.00 |
Copper | 0.50 max | 0.30 max |
Cobalt | 1.00 max | – |
Niobium | 1.80 – 2.00 | 1.80 – 2.20 |
Aluminium | 5.50 – 6.50 | 5.80 – 6.50 |
Titanium | 0.50 – 1.00 | 0.50 – 0.80 |
Zirconium | 0.050 – 0.150 | 0.07 – 0.150 |
Boron | 0.005 – 0.015 | 0.007 – 0.015 |
Nickel | Balance | Balance |
With over six decades of expertise, PML delivers high-performance component technologies and precision solutions trusted across critical industries.

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International Standard for Automotive Management Systems

AS 9100
Aerospace Quality Management System (QMS)
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