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SAE-AISI 51B60 Steel vs. S31727 Stainless Steel

Both SAE-AISI 51B60 steel and S31727 stainless steel are iron alloys. They have 59% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 51B60 steel and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 21
40
Fatigue Strength, MPa 280 to 340
240
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 390 to 420
430
Tensile Strength: Ultimate (UTS), MPa 660
630
Tensile Strength: Yield (Proof), MPa 400 to 550
270

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
1010
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
4.7
Embodied Energy, MJ/kg 19
64
Embodied Water, L/kg 49
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73 to 120
200
Resilience: Unit (Modulus of Resilience), kJ/m3 420 to 800
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23
22
Strength to Weight: Bending, points 22
20
Thermal Shock Resistance, points 19
14

Alloy Composition

Boron (B), % 0.00050 to 0.0030
0
Carbon (C), % 0.56 to 0.64
0 to 0.030
Chromium (Cr), % 0.7 to 0.9
17.5 to 19
Copper (Cu), % 0
2.8 to 4.0
Iron (Fe), % 97 to 97.8
53.7 to 61.3
Manganese (Mn), % 0.75 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
3.8 to 4.5
Nickel (Ni), % 0
14.5 to 16.5
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030