United States · ACI

CF3

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Chemical composition

wt% · log scale
0.010.1110100C0.03Cr17 – 21Mn1.5Ni8 – 12P0.04S0.04Si2
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≥262 MPaTensile strength Rm≥558 MPaElongation A≥53 %castings, As castYield strength Rp0.2≥255 MPaTensile strength Rm≥531 MPaImpact energy Kv/Ku≥102 JElongation A≥55 %HardnessHBcastings +AT+QW

Physical properties

vs. temperature
Mean thermal expansion 10⁻⁶/K
16.2 – 18.4°C
Thermal conductivity W/(m·K)
15.8 – 20.9°C

Chemical composition

ElementminmaxSimilarRemarks
C0.03
Cr1721
Mn1.5
Ni812
P0.04
S0.04
Si2

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
castings, As cast≥262≥558≥53 Lo=50.8mm; for T-L grain direction Amin=4%
castings +AT+QW≥255≥531≥55 Lo=50.8mm; for T-L grain direction Amin=4%≥102 Charpy impact (keyhole notch)HB ≥140

Physical properties

20.0

Elastic modulusMean thermal expansionThermal conductivitySpecific heatResistivityDensityPoisson's ratio
193.00502.420.767.75

Similar grades

GradeRegionSystem
CF 3GlobalEnterprise standard
CF-3MGlobalEnterprise standard
SA-451 Grade CPF3AUnited StatesASME
SA-451 Grade CPF3United StatesASME