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SAE-AISI 51B60 Steel vs. S20161 Stainless Steel

Both SAE-AISI 51B60 steel and S20161 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 51B60 steel and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 21
46
Fatigue Strength, MPa 280 to 340
360
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 390 to 420
690
Tensile Strength: Ultimate (UTS), MPa 660
980
Tensile Strength: Yield (Proof), MPa 400 to 550
390

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 420
870
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1410
1330
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 43
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
12
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 19
39
Embodied Water, L/kg 49
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73 to 120
360
Resilience: Unit (Modulus of Resilience), kJ/m3 420 to 800
390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 23
36
Strength to Weight: Bending, points 22
29
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 19
22

Alloy Composition

Boron (B), % 0.00050 to 0.0030
0
Carbon (C), % 0.56 to 0.64
0 to 0.15
Chromium (Cr), % 0.7 to 0.9
15 to 18
Iron (Fe), % 97 to 97.8
65.6 to 73.9
Manganese (Mn), % 0.75 to 1.0
4.0 to 6.0
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
3.0 to 4.0
Sulfur (S), % 0 to 0.040
0 to 0.040