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A194 grade 4

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A194 grade 4
ASTM A194/A194M


Alloy Steel

Element Min Max
C (Carbon) 0.4% 0.5%
Mn (Manganese) 0.7% 0.9%
Mo (Molybdenum) 0.2% 0.3%
P (Phosphorus) 0.035%
S (Sulphur) 0.04%
Si (Silicon) 0.15% 0.35%
Mechanical Property Min Max
Hardness (Brinell) 248 327
Hardness (Rockwell C) 24 35

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