Steel for common tools Carbon steel: CS Mainly refers to the carbon content of less than 2.11% and not containing alloying elements added to the steel. Sometimes called carbon steel or carbon steel. The higher the carbon content, the higher the strength, plasticity (toughness) is low. The commonly used 45# steel is a kind of high quality carbon steel (low phosphorus, sulfur), widely used tool materials. Chrome vanadium steel: Cr-V Chrome vanadium is added chromium (Cr), vanadium (V) alloy tool steel alloy elements, the comprehensive ability of its strength and toughness is better than that of carbon steel, ideal materials as quality tools. For example, wrench, screwdriver sleeve, etc. Cr Mo Steel: Cr-Mo Cr (Cr), molybdenum (Mo) and iron (Fe), carbon (C) alloy, impact resistance and excellent performance, excellent strength and toughness, better comprehensive performance of chrome vanadium steel. Suitable for making top screwdriver and a small six angle wrench. S2 tool steel Carbon (C), silicon (Si), manganese (Mn), chromium (Cr), molybdenum (Mo), vanadium (V) alloy. Excellent shock resistant tool steel, the strength and toughness of steel with excellent, high-end tools, performance is better than that of Cr Mo steel. Such as screwdriver, six - angle wrench In carbon steel high carbon steel - Cr-V- Cr-Mo- S2- - S2 S2 with the titanium oxide film and diamond coating, the high-grade group head using diamond coating can increase the friction, without strong will not slip the screws. All the tools are made of high carbon steel
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