The differences between iron nails vs stainless steel nails and their application scenarios

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Dimension
Iron Nails
Stainless Steel Nails
Material & Corrosion Resistance
Low/middle-carbon steel, no rust-resistant components; rusts in humid/outdoor environments within 1-3 months, easily staining wood and walls
Contains chromium (≥10.5%) and nickel (8%-10% in 304, 10%-14% in 316); 316 adds molybdenum. 304 resists general humidity; 316 resists salt spray/acids/alkalis
Strength & Service Life
Medium hardness (HB100-150); prone to deformation under long-term stress; outdoor service life of 1-2 years
Higher hardness (HB150-200); resistant to tension and shear. 304 has a service life of 5-10 years; 316 reaches 10-15 years
Cost
Low: Approximately 1/3 to 1/2 the cost of 304 stainless steel nails
High: 316 is 20%-40% more expensive than 304
Core Advantage
High cost-effectiveness, suitable for short-term, low-cost scenarios
Strong durability, adapted to long-term, high-demand scenarios

II. Scenario-Based Application Guide (Precise Demand Matching)

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The differences between iron nails vs stainless steel nails and their application scenarios

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Dimension	Iron Nails	Stainless Steel Nails
Material & Corrosion Resistance	Low/middle-carbon steel, no rust-resistant components; rusts in humid/outdoor environments within 1-3 months, easily staining wood and walls	Contains chromium (≥10.5%) and nickel (8%-10% in 304, 10%-14% in 316); 316 adds molybdenum. 304 resists general humidity; 316 resists salt spray/acids/alkalis
Strength & Service Life	Medium hardness (HB100-150); prone to deformation under long-term stress; outdoor service life of 1-2 years	Higher hardness (HB150-200); resistant to tension and shear. 304 has a service life of 5-10 years; 316 reaches 10-15 years
Cost	Low: Approximately 1/3 to 1/2 the cost of 304 stainless steel nails	High: 316 is 20%-40% more expensive than 304
Core Advantage	High cost-effectiveness, suitable for short-term, low-cost scenarios	Strong durability, adapted to long-term, high-demand scenarios