Fastener Materials Chart

Fastener Materials

Fastener Materials

Material Description Strengths Weaknesses Applications
Low Carbon Steel Contains less than 0.3% carbon. Inexpensive and easy to form. Good for general applications where high strength is not required. Low strength compared to other alloys. Susceptible to corrosion. General hardware, construction, automotive.
Medium Carbon Steel Contains 0.3% to 0.6% carbon. Stronger and harder than low carbon steel. Higher strength and hardness compared to low carbon steel. Less ductile and more prone to brittleness. Susceptible to corrosion. Automotive parts, machinery, structural components.
Alloy Steel Contains additional alloying elements such as manganese, chromium, or nickel. High strength, hardness, and wear resistance. Higher cost compared to carbon steels. May require special heat treatment. High-stress applications, automotive, aerospace.
Stainless Steel Contains chromium (usually at least 10.5%) to resist corrosion. Excellent corrosion resistance, even at high temperatures. Higher cost than carbon steels. Not as strong as carbon or alloy steels. Marine environments, food processing, medical devices.
Brass Alloy of copper and zinc. Excellent corrosion resistance. Good electrical conductivity. Relatively low strength. Higher cost compared to steel. Decorative hardware, electrical components, plumbing.
Aluminum Lightweight metal with good corrosion resistance. Low density, good thermal conductivity. Lower strength compared to steel. Susceptible to galvanic corrosion. Aerospace, automotive, construction.
Titanium Lightweight, high-strength metal with excellent corrosion resistance. High strength-to-weight ratio, biocompatible. Expensive, difficult to machine. Aerospace, medical implants, marine.
Nickel Alloys Contains nickel with other elements such as chromium, molybdenum, or iron. High strength, corrosion resistance, and heat resistance. Higher cost, can be difficult to machine. Aerospace, chemical processing, marine.
Copper Soft, malleable metal with excellent electrical conductivity. Good corrosion resistance, thermal conductivity. Low strength, prone to tarnishing. Electrical wiring, plumbing, decorative applications.
Plastics Various synthetic materials with a wide range of properties. Lightweight, corrosion-resistant, non-conductive. Low strength compared to metals. Can degrade over time. Electronics, automotive, medical devices.