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AISI 420 Stainless Steel vs. ACI-ASTM CF10SMnN Steel

Both AISI 420 stainless steel and ACI-ASTM CF10SMnN steel are iron alloys. They have 77% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 420 stainless steel and the bottom bar is ACI-ASTM CF10SMnN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.0 to 15
34
Fatigue Strength, MPa 220 to 670
260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
660
Tensile Strength: Yield (Proof), MPa 380 to 1310
330

Thermal Properties

Latent Heat of Fusion, J/g 280
340
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 620
900
Melting Completion (Liquidus), °C 1510
1360
Melting Onset (Solidus), °C 1450
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
15
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 2.0
3.1
Embodied Energy, MJ/kg 28
45
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 14
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
180
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 4410
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 25 to 62
24
Strength to Weight: Bending, points 22 to 41
22
Thermal Shock Resistance, points 25 to 62
15

Alloy Composition

Carbon (C), % 0.15 to 0.4
0 to 0.1
Chromium (Cr), % 12 to 14
16 to 18
Iron (Fe), % 82.3 to 87.9
59.1 to 65.4
Manganese (Mn), % 0 to 1.0
7.0 to 9.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.75
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 1.0
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0 to 0.030