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AISI 420 Stainless Steel vs. SAE-AISI 51B60 Steel

Both AISI 420 stainless steel and SAE-AISI 51B60 steel are iron alloys. They have 87% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 420 stainless steel and the bottom bar is SAE-AISI 51B60 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.0 to 15
12 to 21
Fatigue Strength, MPa 220 to 670
280 to 340
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 420 to 1010
390 to 420
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
660
Tensile Strength: Yield (Proof), MPa 380 to 1310
400 to 550

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 620
420
Melting Completion (Liquidus), °C 1510
1450
Melting Onset (Solidus), °C 1450
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
43
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
2.1
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 28
19
Embodied Water, L/kg 100
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
73 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 4410
420 to 800
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 62
23
Strength to Weight: Bending, points 22 to 41
22
Thermal Diffusivity, mm2/s 7.3
12
Thermal Shock Resistance, points 25 to 62
19

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0.15 to 0.4
0.56 to 0.64
Chromium (Cr), % 12 to 14
0.7 to 0.9
Iron (Fe), % 82.3 to 87.9
97 to 97.8
Manganese (Mn), % 0 to 1.0
0.75 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.75
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040

Comparable Variants