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Nexus Delhi

Diffuson Coatech is proud to be associated with Nexus. Nexus is a collaboration between the American Embassy, New Delhi and ACIR to showcase the best of American and Indian Entrepreneurship, Innovation and Technology Commercialization.

What is MetaBoid? MetaBoid results in a very hard case on the surface of the component. Specifically, this is useful in the case hardening of gears and similar components which are subject to a great deal of wear in hostile environments. This diffusion coating heat treatment process is especially useful if there is a requirement for a hard, wear-resistant surface, overlying a much softer and tougher core. A good example of its application is a gear wheel. The surface of the teeth needs to be extremely hard so that they can withstand constant metal-to-metal contact, without undue wear. The underlying material needs to be tough so that the teeth can tolerate occasional impact loads, without the risk of fracture. 

MetaBoid can be used to give a hard case onto the cheapest steels which are often not capable of being case hardened because of their chemical composition. MetaBoid results in lesser distortion than traditional carburizing or carbo-nitriding techniques.

What is MetaBoid?

MetaBoid is a thermo-chemical process based on our proprietary plasma-enhanced chemical vapor deposition technology. Within the framework of this process, the surface layer of components is enriched with ions capable of forming compounds with the carbide forming elements in the base material in order to improve the mechanical properties of the component surface layer. For this process, there are various furnace technologies, such as pot furnaces and chamber furnaces with sophisticated automation.

No quenching is needed to attain the hardness therefore the MetaBoid process produces relatively lower distortion levels compared to other case hardening processes. 


Wear and tear in Oil & Gas industry

Wear resistance in harsh environments, increased performance, sophisticated surface technologies

The oil and gas industry. Machines operating under challenging conditions day after day; parts subject to strong chemical and galvanic corrosion; extreme wear and tear and massive abrasion. We understand the harsh environments the fossil fuel industry operates in, and our heat and surface treatments are designed to protect your equipment in the field, leading to long-lasting, efficient processing. Many factors contribute to decreased equipment life in the oil and gas industry. These include drilling, moving oil and gas towards factories, relentless interaction with rough seawater, and continued contact with harsh weather conditions. Where regular maintenance is not an option, these factors need tough coatings to prolong equipment life. Some coating advantages include temperature resistance, abrasion resistance, chemical resistance, corrosion protection, and extreme hardness. 

Temperature Resistance—Ultraviolet (UV) rays, high/low environmental temperatures, heat emission from machine production, and many more extreme conditions can put wear and tear on metal parts. That is why it is important for parts to be coated in such a way that they can withstand severe circumstances and prolong equipment life span.

Abrasion Resistance—Since the oil and gas industry is in a harsh condition environment, it is important that parts are coated to allow the equipment to overcome daily wear and tear. Decreasing mechanical wear is important in making all the processes run smoothly. Protective metal coatings provide a barrier that increases abrasion resistance caused by drilling and other extracting methods.

Chemical Resistance—Oil and natural gas can carry imperfect components that are fundamentally harsh. To avoid erosion from chemicals such as carbon dioxide (CO2) and hydrogen sulfide (H2S), the parts need to be coated with a formula that promotes chemical resistance to fight the effects that chemicals have on the equipment. In most cases, insufficient chemical resistance can show itself by tempering the equipment, resulting in loss of functionality.

Corrosion Protection—In offshore oil and gas settings, rust is a significant factor in corrosion. As the oil and gas industry advances, there is a possibility for new corrosion challenges to emerge. The quality of the equipment is only as good as the level of protection and maintenance that is provided. Corrosion protection is used to minimize metal corrosion and prolong equipment life.

Extreme Hardness—The constant pounding produced by drilling and pumping causes poorly equipped metal parts to have a short life span. Metal parts that are coated to increase hardness help equipment withstand the intense pressure it endures, lengthening the equipment’s life span.  


No. 25 SIDCO Industrial Estate Kakkalur,
Ramapuram, Thaneer Kulam Village,
Tiruvallir District,
Tamil Nadu-602025


Diffuson Coatech LLP
New No. 27, Tylors Road, 
Kilpauk, Chennai,
Tamil Nadu - 600010

Quality policy

Diffuson Coatech LLP is set to meet every requirement of the customer through continuous improvement of its quality management systems. Diffuson Coatech LLP (DC) is committed to the quality of customer’s products by adopting groundbreaking innovative management systems. Diffuson Coatech through its visionary leadership is set to standardize the quality advancement in surface engineering to add value to our customers’ products today, tomorrow and through continuous increment in quality and performance.

Sincere and strenuous efforts are always
underway to raise up to the expectation of the
customer both in terms of technology
development and affordable pricing of various
processes offered and services rendered.

S.P. Chandra Sekar 
Chief Operating Officer 


To empower products of our customers with a wide
range of high-value engineering solution in the field of
surface engineering to drive business success and stay 


To be the authority in providing high-quality solutions
in surface engineering with the integration of
innovative technology and scientific research to
meet the expectations of National and Global 

S.P. Chandra Sekar 
Chief Operating Officer 


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