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SAE-AISI 1552 Steel vs. SAE-AISI 6118 Steel

Both SAE-AISI 1552 steel and SAE-AISI 6118 steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1552 steel and the bottom bar is SAE-AISI 6118 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
23
Fatigue Strength, MPa 290 to 400
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 460 to 510
300
Tensile Strength: Ultimate (UTS), MPa 760 to 840
470
Tensile Strength: Yield (Proof), MPa 460 to 650
290

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
45
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.7
Embodied Energy, MJ/kg 19
23
Embodied Water, L/kg 47
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 98
93
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1130
220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 30
17
Strength to Weight: Bending, points 24 to 25
17
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 26 to 29
14

Alloy Composition

Carbon (C), % 0.47 to 0.55
0.16 to 0.21
Chromium (Cr), % 0
0.5 to 0.7
Iron (Fe), % 97.9 to 98.3
97.8 to 98.6
Manganese (Mn), % 1.2 to 1.5
0.5 to 0.7
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.040
Vanadium (V), % 0
0.1 to 0.15