The advantages of different materials for expansion bolts
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The advantages of different materials for expansion bolts

Carbon steel: Low cost, high strength (for example, 8.8 grade carbon steel has a tensile strength of 800 MPa), suitable for fixed equipment and supports in dry indoor environments, with outstanding cost performance.

Stainless steel (304/316): 304 is resistant to atmospheric corrosion and suitable for humid workshops and outdoor pipelines; 316 contains molybdenum and is resistant to seawater and chemical medium corrosion, making it the preferred choice for equipment in coastal areas and laboratories.

Hot-dip galvanized steel: The zinc layer on the surface acts as a sacrificial anode, with a resistance to neutral salt spray of over 500 hours. Suitable for outdoor billboards, street lamps, etc. in long-term exposed scenarios, with a cost lower than stainless steel.