SAE-AISI 1144 (G11440) Carbon Steel
Carbon & Non-Alloy Steels
hot worked
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength750MPa
Yield Strength420MPa
Brinell Hardness220HB
Maximum Service Temperature400°C
Chemical Composition
C
0.4 to 0.48%
MN
1.4 to 1.7%
P
0 to 0.040%
S
0.24 to 0.33%
FE
97.5 to 98%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
17 %
Fatigue Strength
280 MPa
Poisson's Ratio
0.29
Reduction in Area
40 %
Shear Modulus
72 GPa
Shear Strength
460 MPa
Tensile Strength: Ultimate (UTS)
750 MPa
Tensile Strength: Yield (Proof)
420 MPa
Hardness
Brinell Hardness
220
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
400 °C
Melting Completion (Liquidus)
1450 °C
Melting Onset (Solidus)
1410 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
51 W/m-K
Thermal Diffusivity
14 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
22 points
Electrical
Electrical Conductivity: Equal Volume
7.2 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.2 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m 3
Resilience: Unit (Modulus of Resilience)
480 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
27 points
Strength to Weight: Bending
23 points
Environmental
Base Metal Price
1.9 % relative
Embodied Carbon
1.4 kg CO 2 /kg material
Embodied Energy
19 MJ/kg
Embodied Energy
19 MJ/kg 8.0 x 10 3 BTU/lb
Embodied Water
47 L/kg
Embodied Water
47 L/kg 5.7 gal/lb
Registered Designations & Aliases
G11440SAE-AISI 1144 (G11440) Carbon Steel
Standards
ASTM A29 ASTM A29: Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for