Cold Finished 50B60 Boron Steel
Alloy Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength630MPa
Yield Strength530MPa
Brinell Hardness190HB
Maximum Service Temperature410°C
Chemical Composition
C
0.56 to 0.64%
CR
0.4 to 0.6%
MN
0.75 to 1.0%
SI
0.15 to 0.35%
P
0 to 0.035%
S
0 to 0.040%
B
0.00050 to 0.0030%
FE
97.3 to 98.1%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
12 %
Fatigue Strength
330 MPa
Poisson's Ratio
0.29
Shear Modulus
72 GPa
Shear Strength
380 MPa
Tensile Strength: Ultimate (UTS)
630 MPa
Tensile Strength: Yield (Proof)
530 MPa
Hardness
Brinell Hardness
190
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
410 °C
Melting Completion (Liquidus)
1450 °C
Melting Onset (Solidus)
1410 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
45 W/m-K
Thermal Diffusivity
12 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
20 points
Electrical
Electrical Conductivity: Equal Volume
7.2 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.3 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
71 MJ/m 3
Resilience: Unit (Modulus of Resilience)
750 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
23 points
Strength to Weight: Bending
21 points
Environmental
Base Metal Price
2.0 % relative
Embodied Carbon
1.4 kg CO 2 /kg material
Embodied Energy
19 MJ/kg
Embodied Energy
19 MJ/kg 8.2 x 10 3 BTU/lb
Embodied Water
48 L/kg
Embodied Water
48 L/kg 5.8 gal/lb
Standards
ASTM A29 ASTM A29: Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for
ASTM A322 ASTM A322: Standard Specification for Steel Bars, Alloy, Standard Grades
ASTM A322 ASTM A322: Standard Specification for Steel Bars, Alloy, Standard Grades Boron in Steel, S. K. Banerji and J. E. Morral (editors), 1980 ASTM A29: Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for Properties and Selection: Irons, Steels and High Performance Alloys, ASM Handbook vol. 1, ASM International, 1993