SAE-AISI 1055 (G10550) Carbon Steel
Carbon & Non-Alloy Steels
annealed and cold-drawn
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength750MPa
Yield Strength630MPa
Brinell Hardness220HB
Maximum Service Temperature400°C
Chemical Composition
C
0.5 to 0.6%
MN
0.6 to 0.9%
P
0 to 0.040%
S
0 to 0.050%
FE
98.4 to 98.9%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
11 %
Fatigue Strength
390 MPa
Poisson's Ratio
0.29
Reduction in Area
45 %
Shear Modulus
72 GPa
Shear Strength
450 MPa
Tensile Strength: Ultimate (UTS)
750 MPa
Tensile Strength: Yield (Proof)
630 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)
1460 °C
Melting Onset (Solidus)
1420 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
51 W/m-K
Thermal Diffusivity
14 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
24 points
Electrical
Electrical Conductivity: Equal Volume
11 % IACS
Electrical Conductivity: Equal Weight (Specific)
12 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
80 MJ/m 3
Resilience: Unit (Modulus of Resilience)
1070 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
26 points
Strength to Weight: Bending
23 points
Environmental
Base Metal Price
1.8 % relative
Embodied Carbon
1.4 kg CO 2 /kg material
Embodied Energy
18 MJ/kg
Embodied Energy
18 MJ/kg 7.9 x 10 3 BTU/lb
Embodied Water
46 L/kg
Embodied Water
46 L/kg 5.5 gal/lb
Registered Designations & Aliases
G10550SAE-AISI 1055 (G10550) Carbon Steel
Standards
ASTM A29 ASTM A29: Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for