| Series | Structure | Corrosion Resistance | Example | Application | |--------|-----------|----------------------|---------|-------------| | 300 (Austenitic) | FCC, non-magnetic | Excellent | 304, 316 | Food equipment, chemical plants | | 400 (Ferritic/Martensitic) | BCC, magnetic | Good | 410, 430 | Cutlery, automotive trim | | 200 series | Austenitic, Mn-substituted | Moderate | 201 | Utensils, architectural |
| Property | Definition | Typical Range (Structural Steel) | |----------|------------|----------------------------------| | Yield Strength (σ_y) | Stress at plastic deformation onset | 250–1000+ MPa | | Tensile Strength (σ_uts) | Maximum engineering stress | 400–1200+ MPa | | Elongation (%) | Ductility measure | 10–30% | | Hardness (HB) | Resistance to indentation | 120–600 HB | | Toughness (CVN) | Energy absorbed in impact | 20–200 J (at room temp) | | Fatigue Limit | Endurance under cyclic load | 0.3–0.5 × σ_uts | | Series | Structure | Corrosion Resistance |
Note: Properties vary widely with composition and heat treatment. | Property | Definition | Typical Range (Structural
Standards: AISI/ASTM tool steel designations. Standards: AISI/ASTM tool steel designations