In August 2025,TungaloyAnnounced the expansion of the T6200 and AH6200 series and the introduction of new CVD materialsT6225, which is designed to provide excellent tool life and process reliability when machining stainless steel under a wide range of cutting conditions.

Challenges and trends

Extending tool life and ensuring consistent cutting performance are ongoing demands in stainless steel machining, especially in general machining and the automotive industry. In the manufacture of critical components such as shafts, joints, pistons, and valves, there is a strong demand for tools with excellent wear resistance. Existing materials sometimes lag behind competitors in terms of performance. Due to these challenges and market conditions, the demand for higher performance cutting grades is increasing.

Product Overview:

The T6200 and AH6200 series are the latest turning grades developed specifically for stainless steel machining. T6215 is high-speed andContinuous cuttingT6225 is a CVD material optimized for M25 applications, effectively filling the gap between T6215 and AH6225. AH6225 is the preferred material for stainless steel machining, while AH6235 is best suited for intermittent and heavy cutting, providing excellent wear resistance and breakage resistance. This advanced series is suitable for all types of machining operations.

Advantages and features

Feature 1: Excellent balance between wear resistance and chipping toughness

· T6225 features a newly developed high-adhesion Al₂O₃ coating that significantly inhibits chipping edge and coating peeling.

The high-hardness outer layer enhances resistance to rear face wear and provides stable machining performance.

The coating thickness is 1.3 times that of conventional products, significantly extending tool life and reducing the frequency of replacements.

Feature 2: Suitable for a wide range of applications

· T6225 is a CVD material optimized for the M25 range, filling the gap between T6215 and AH6225.

It covers a wide range of stainless steel machining from M20 to M30 and is highly versatile.

· The four-material system of the T6200 series (T6215, T6225) and AH6200 series (AH6225, AH6235) allows for optimal tool selection based on machining conditions and objectives.

Feature 3: High versatility and stable processing

With an excellent balance of wear resistance and chipping resistance, T6225 works reliably even under intermittent cutting and unstable machining conditions.

Its high coating adhesion maintains performance over long periods of continuous processing.

Its adaptability to various workpiece materials and cutting conditions helps streamline tool management and reduce costs.

Cutting performance

atAustenitic stainless steelDuring processing, T6225 exhibits excellent wear resistance and plastic deformation resistance.

Success stories

Improved tool life

The T6225 provides process safety without edge chipping or breakage after completing the required 250 parts.

Improved tool life

Improved tool life

With its exceptional wear resistance, the T6225 achieves double the tool life.