DESCRIPTION
Type 410 Stainless Steel is a martensitic stainless steel that provides good corrosion resistance plus high strength and hardness. It is magnetic in both the annealed and hardened conditions. A wide range of properties can be developed with different heat treatments.
PRODUCT FORMS
Sheet, Strip
SPECIFICATIONS
ASTM A240
TYPICAL APPLICATIONS
Flat springs, knives, kitchen utensils and hand tools
PROCESSING
Annealing: Heat slowly to 1500-1650°F, cool to 1100°F in furnace, air cool. Process Annealing: Heat to 1350-1450°F, air cool. Hardening: Heat to 1700-1850°F, air cool or oil quench. Follow by stress-relief or temper. Stress Relieving: Heat at 300-800°F for 1 to 2 hours, air cool.
WELDING
The martensitic alloys have limited weldability due to their hardenability.
CORROSION
Type 410 provides good corrosion resistance to air, water and some chemicals. It shows satisfactory resistance to nitric acid, concentrated sulfuric acid, dilute acetic acid and naphtha. Resistance to food acids is good.
FORMING
Type 410 has reasonably good cold working properties and can be moderately drawn and formed in the annealed condition.
| Type | Yield Strength 0.2% offset (KSI) | Tensile Strength (KSI) | % Elongation (2” Gauge Length) |
| 410 Ann | 30 min. | 65 min. | 20 min. |
| Element | Type 410 |
| Carbon | 0.08 – 0.15 |
| Manganese | 1.00 max. |
| Sulfur | 0.030 max. |
| Phosphorus | 0.040 max. |
| Silicon | 1.00 max. |
| Chromium | 11.5 – 13.5 |
| Nickel | 0.75 max. |
PHYSICAL PROPERTIES
Density @ RT: 0.28 lb./in^2; Modulus of Elasticity in Tension: 29.0 psi x 10^6; Specific Heat: 0.11 BTU/°F/lb. from 32 to 212°F; Thermal Conductivity: 14.4 at 212°F and 16.6 at 932°F; Mean Coefficient of Thermal Expansion: 5.5 from 32 to 212°F and 6.5 from 32 to 1,200°F; Electrical Resistivity: 22.5 micro ohms-cm at 70°F.
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