The best grades of EDM Graphite Electrodes
At EXPO, we make sure your graphite needs are satisfied, and you experience our premium quality EDM Graphite Electrodes. We have partnered with TOYO TANSO(Japan), a premier manufacturer of iso-molded graphite. That way, you experience an international and superior finish when using our graphite product. And what better than our grades ISEM-8, ISO-63, and TTK-5, to answer all your EDM requirements!

Grab your premium quality EDM graphite electrodes now!
ISEM - 8
Apt for semi-finished & finished EDM
Forging & Injection Molds, Punch & Dies, Sintered/Powdered Metal Molds,Blow Molds
Bulk Density | 1.78 |
mg/m³ | |
Hardness | 63 |
HRC | |
Electrical Resistivity | 13.4 |
μΩm | |
Flexural Strength | 52 |
MPa | |
Compressive Strength | 105 |
MPa | |
Tensile Strength | 34 |
MPa | |
Young's Modulus | 10.1 |
GPa | |
C.T.E¹ | 5.6 |
10⁻⁶/K | |
Thermal Conductivity | 90 |
W/(m•K) | |
Standard Size | 305 x 620 x 1050 |
(mm) |
ISO - 63
High hardness & strength. Apt for finished & more detailed EDM
Forging & Injection Molds, Punch & Dies, Sintered/Powdered Metal Molds,Blow Molds
Bulk Density | 1.78 |
mg/m³ | |
Hardness | 76 |
HRC | |
Electrical Resistivity | 15.0 |
μΩm | |
Flexural Strength | 65 |
MPa | |
Compressive Strength | 135 |
MPa | |
Tensile Strength | 46 |
MPa | |
Young's Modulus | 12.0 |
GPa | |
C.T.E¹ | 5.6 |
10⁻⁶/K | |
Thermal Conductivity | 70 |
W/(m•K) | |
Standard Size | 230 x 540 x 1000 |
(mm) |
TTK - 5
Apt for high precision EDM and Fine Ribs
Plastic Injection Molds, Wire Cutting, Aerospace, Medical, Fine Details/Threaded Electrodes
Bulk Density | 1.78 |
mg/m³ | |
Hardness | 80 |
HRC | |
Electrical Resistivity | 15.5 |
μΩm | |
Flexural Strength | 80 |
MPa | |
Compressive Strength | 150 |
MPa | |
Tensile Strength | 53 |
MPa | |
Young's Modulus | 11.6 |
GPa | |
C.T.E¹ | 5.7 |
10⁻⁶/K | |
Thermal Conductivity | 80 |
W/(m•K) | |
Standard Size | 210 x 510 x 950 |
(mm) |
- C.T.E* : Coefficient of Thermal Expansion.
- The figures above are tentative values and not guaranteed.
- The measurement temperature range for C.T.E is 350-450° C.
Wide Range of Material variety
EDM Graphite Electrodes are designed with a wide range of material varieties for optimum electrode material properties to the EDM application. The highly detailed EDM electrode has critical features, extreme tolerance, and stringent EDM requirements that make it a more advanced graphite electrode to meet your application demands.
Electrode Detail
Other electrodes like copper cannot operate at a high current density, but graphite performs best at high current density even with complex geometry. This feature allows various intricate machined details to be designed on the same electrode and reduces the number of electrodes required to get the job done.
Surface Finish
With the advancement in EDM technology today, graphite surface finishes are the same as copper. Fine-grain graphite electrodes achieve similar surface finish but with reduced time and significantly decreased electrode wear.
EDM performance
Graphite electrodes achieve less than 1% wear concerning the depth of cut, during its function with aggressive machine parameters. Hence, at high amperages and longer-on times, graphite is preserved, and fewer electrodes and dressing are required.
Resistance to wear and tear
The EDM graphite electrodes have a high machining accuracy, an outline dimension of tolerance size after workplace machining. This tolerance is related to the resistance of the electrode material, and graphite has a higher strength than copper to wear and tear.
- Graphite has good electrical properties and it has the stability to withstand at high temperatures.
- Graphite electrodes have good mechanical strength and vibration resistance. It is a good conductor of electricity.
- GGraphite electrodes are 67% faster and better than the copper electrode and hence it remains preserved at high amperages, unlike copper that erodes at high amperages.
- Reduced Machining time gives significant cost savings for your industry.
- It does not require frequent dressing like copper electrodes.
The global graphite market was valued at $14.3 billion in 2019, and is expected to reach $21.6 billion by 2027, registering a CAGR of 5.3% from 2020 to 2027.

India’s One of the most prominent manufacturers and suppliers of Graphite electrodes now just a click away!
Order now and get it delivered to your doorstep!Why order Graphite Electrode from EXPO?
With the motto of Redefining possibilities, we strive to give you the best quality EDM graphite electrode and get you maximum worth of your money. Here are a few reasons why you should choose EXPO Graphite Electrode to boost your business:
Smoother and faster delivery
We deliver products you order in a smooth, fast, and hassle-free process. The number of days it takes to deliver the products is based on your location.
Exclusive partnered with TOYO TANSO (Japan)
We have partnered with TOYO TANSO (Japan), to give you a premium experience and taste of an international texture to your graphite products.
World-renowned clients
Clients like Diesech India,Motherson,Sumi Systems, Kangaro, and many more, have appreciated our products, and now it's your turn to build your business with these products.
Flexibility and adaptability according to customer needs
We have dedicated CAD/CAM team that customizes and designs the electrode in such a way that it suits your needs exactly and is adaptable with your machines.
Thorough and Extensive Quality Control (CMM on Carl Zeiss)
We have a dedicated quality control team so that you get the best of the graphite products. The products are checked on the parameters of working life, machining features. After they qualify these parameters, we release these products so that you have the best products for your process.
Some of Our EDM Products
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Our Clients
World-renowned companies like Devu tools, Dietech India, MothersonSumi Systems, Kangaro, Seco Warwick, and many others have entrusted us in supplying their Graphite needs. And now it’s your turn to take the benefits of our quality services!
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