Understanding Tool Materials: A Guide to Steel Types

Exploring Steel Types for Tools

In the previous article, we talked about the tools are mainly made from steel, the hardness and flexibility will affect the operation, so the key point is the carbon content. “Low carbon steel” <0.25% “Medium carbon steel“ 0.6%< “High carbon steel” Low carbon steel is often used on less strength mechanic parts.

The most common materials used for tools are high carbon steel and CRV. CRV is an alloy contains element CR and V, it is ideal material to use on sockets, screwdrivers and wrenches. CR-Mo is an alloy contains element CR, Mo, Fe and C. Mostly used on impact sockets for better torque force. S2 is better material to use on hex key. SVCM is excellent alloy to manufacture screwdrivers for durable and strength.

• Low carbon steel: Contains less than 0.25% carbon and is often used for less mechanically demanding parts.
• High carbon steel and CRV: Commonly used materials for tools. CRV (Chromium-Vanadium) is an alloy containing chromium and vanadium, ideal for sockets, screwdrivers, and wrenches.
• CR-Mo: An alloy containing chromium, molybdenum, iron, and carbon. Used for impact sockets due to its ability to withstand torque forces.
• S2: Preferred material for hex keys.
• SVCM: Excellent alloy for manufacturing durable and strong screwdrivers.

The above knowledge sharing is from HTI internal training, Tom, our VP, has involved in hand tools industries for over 20 years. His abundant experience inherits and educates hand tools knowledge to our whole team. To soak up information, everyone gets to know our industry better and helps to serve our customers with profession.