Stainless Steel 304, like 302, has good mechanical properties and
corrosion resistance.




 

Applications include:

  • Springs
  • Wire Gauze
  • Wire Cloth

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Approximate Chemical Composition
Cr 17-19%
Ni 8-11%
Fe BAL
DENSITY 8.0 g/cm3 0.289 lb/in3
MELTING POINT 1454 oC 2650 oF
COEFFICIENT OF EXPANSION 18.2 µm/m °C
( 20 - 100°C)		 10.1 x 10-6 in/in °F
( 70 - 212°F)
MODULUS OF RIGIDITY 70.3 kN/m2 10196 ksi
MODULUS OF ELASTICITY 187.5 kN/m2 27195 ksi
 
CONDITION OF SUPPLY HEAT TREATMENT (AFTER FORMING)
Annealed/Spring Temper Stress relieve at 250°C (480°F) for 1 hour and air cool.
 
CONDITION APPROX TENSILE STRENGTH APPROX SERVICE TEMPERATURE
Annealed
600-800 N/mm2 87-116 ksi
-200 to +300 oC -330 to +570 oF
Spring Temper
1300-2200 N/mm2 189-319 ksi
-200 to +300 oC -330 to +570 oF
 
STANDARDS
BS 970 BS 1554 BS 2056 ASTM A313
 
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