CRV50 or EN9 - Which is the Preferred Choice of Steel for Punches & Chisels?

When it comes to manufacturing quality punches & chisels, the choice of material is paramount. While various steel grades are available and used globally, CRV50 steel stands out as a superior option particularly for where precision is required and heavy-duty tasks, whereas, EN9 stands out for heavy-duty applications where resistance to impact is required.

Exceptional Durability

Chrome Vanadium Steel, boasts exceptional durability and wear resistance. It is specially designed to endure heavy usage, making it the perfect material for punches and chisels. This resilience means that tools made from CRV50 steel can withstand repeated impact and remain in excellent condition. Some chisels like wood chisels require precision and fine detailing. The high-quality and consistent composition of CRV50 steel ensures that the chisels maintain a sharp edge.

EN 9 steel boasts a lower hardness level, generally falling within the 32 to 36 HRC range. While EN 9 may not be as hard as CRV50 steel, they prioritize toughness and resistance to shock and impact. Industries that need durability, such as construction and automotive, often turn to EN 9 steel.

Hardness Levels

EN 9 may have good mechanical properties, but CRV50 steel's high hardness level sets it apart. It ensures that these tools maintain their sharp edge over time. It often falls within the range of 58-62 HRC which allows for superior edge retention and resistance to wear. CRV50 steel is favored when a sharp and durable edge is crucial and is well-suited for applications like woodworking, jewelry making, and electronics manufacturing.

EN9 steel, with its lower hardness, may be preferred where toughness and resistance to shock and impact is prioritized. Construction workers and metal fabricators rely on EN 9 steel punches and chisels for its toughness. They can endure demanding, high-force tasks without chipping or breaking, making them a reliable choice for rugged applications.

Corrosion Resistance

Such tools often come into contact with moisture, especially during woodworking, which can lead to corrosion if the material is not adequately resistant. CRV50 steel is known for its corrosion resistance, making it an excellent choice for woodworking chisels. This resistance ensures the longevity of the tools, even in damp or humid conditions.

EN 9 steel is also known for its relatively good corrosion resistance. This characteristic, combined with its durability and toughness, makes EN 9 steel chisels and punches suitable for outdoor and heavy-duty tasks, including applications where exposure to moisture or chemicals is common.

Resistance to Wear and Tear

When using punches and chisels, the constant friction and impact can lead to wear and tear. CRV50 steel's exceptional resistance to wear and abrasion means that tools made from this material have a longer lifespan in comparison to EN9. They can maintain their cutting edge, reducing the need for frequent replacements and saving your customers time and money in the long run.

Industry Specific Applications: CRV50 vs EN9

Industries Using Chisels and Punches Made from CRV50 Steel:

1. Woodworking: CRV50 is favored for woodworking due to their exceptional edge retention and precision.
2. Metalworking and Machining Industry: CRV50 punches and chisels are popular for metalworking tasks such as marking and embossing.
3. Jewelry Manufacturing: Craftsmen in the jewelry industry use CRV50 punches and chisels for intricate metalwork, engraving, and fine detailing.
4. Electronics Manufacturing: The precision CRV50 chisels make them valuable for tasks like circuit board modification and component installation.
5. Automotive Industry: CRV50 chisels are used for precision work on car components and body panels, including dent removal and shaping.

Industries Using Chisels and Punches Made from EN9 Steel:

1. Construction Industry: EN9 punches and chisels are crucial in construction such as breaking concrete, cutting bricks, and heavy-duty demolition work.
2. Metal Fabrication and Forging: EN9 chisels and punches are employed in metal fabrication to cut, shape, and manipulate metals.
3. Automotive Repair: Mechanics often use EN9 punches and chisels for heavy-duty tasks, including removing rusted or stubborn components.
4. Shipbuilding and Marine Industry: EN9 is valuable in shipbuilding for cutting, shaping, and assembling metal components in marine construction.
5. Agriculture and Farming: EN9 chisels are utilized in farming for tasks like fence post installation, hole digging, and general repair on agriequipment.
6. Mining Industry: Chisels and punches made from EN9 steel are used for breaking and shaping rocks and ores in mining operations.

The choice between CRV50 steel and EN 9 steel for chisels and punches ultimately boils down to the specific needs of the user. CRV50 steel shines in precision work, offering exceptional hardness and edge retention, making it the material of choice for fine craftsmanship. In contrast, EN 9 steel, with its toughness and impact resistance, is a reliable companion for demanding industrial tasks that prioritize durability over sharpness. Consider the nature of the users work, the tools' exposure to moisture or corrosion, and the level of precision required to select the material that best serves your customers objectives. Both CRV50 and EN 9 steel have their own unique strengths, allowing you to pick the perfect tool for the job at hand.

At Gardex, we have a full range of CRV50 punches and wood chisels. Our range also consists of flat and pointed chisels made from both EN9 and CRV50.