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   API A1 Stainless Steel
#440C Stainless Steel Grade Specifications

Material: AISI TYPE 440 SS
Hardness: 52 - 56
Density: .275 LBS / CU. IN.
Chemical Composition:
C - 0.86 TO 1.20%   Cr - 16.0 TO 18.0%
Mn - 1.0% MAX   Si - 1.0% MAX
P - .04% MAX   S - .03% MAX
Ni - 7.5% MAX   Mo - 1.0% MAX
Remarks:  
MEDIUM WEAR, MILD CORROSION RESISTANCE
Material: AISI TYPE 440 SS
Hardness: 52 - 56
Density: .275 LBS / CU. IN.
Chemical Composition:
C - 0.86 TO 1.20%   Cr - 16.0 TO 18.0%
Mn - 1.0% MAX   Si - 1.0% MAX
P - .04% MAX   S - .03% MAX
Ni - 7.5% MAX   Mo - 1.0% MAX
Remarks:  
MEDIUM WEAR, MILD CORROSION RESISTANCE