SA-449 Type 3

Alias

SA-449 Type 3

Chemistry

Alloy Steel

Element	Min	Max (Sizes through 1½ in.)
C (Carbon)	0.33%	0.4%
Mn (Manganese)	0.9	1.2%
P (Phosphorus)		0.35%
S (Sulphur)		0.04%
Si (Silicon)	0.15%	0.35%
Cu (Copper)	0.25%	0.45%
Ni (Nickel)	0.25%	0.45%
Cr (Chromium)	0.45%	0.65%

Mechanical Property	Min	Max (¼ to 1 incl.)
Tensile Strength	120000 psi
Yield Strength 0.2% offset	92000
Elongation	14% 4D
Reduction of Area	35%
Hardness (Brinell)	253	319
Hardness (Rockwell C)	25	34

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