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AISI 420F Stainless Steel vs. ACI-ASTM CH10 Steel

Both AISI 420F stainless steel and ACI-ASTM CH10 steel are iron alloys. They have 75% of their average alloy composition in common. There are 32 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 AISI 420F stainless steel and the bottom bar is ACI-ASTM CH10 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18
34
Fatigue Strength, MPa 270
180
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 740
540
Tensile Strength: Yield (Proof), MPa 430
230

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 390
440
Maximum Temperature: Mechanical, °C 760
1100
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
20
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
3.7
Embodied Energy, MJ/kg 28
53
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 14
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
150
Resilience: Unit (Modulus of Resilience), kJ/m3 480
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
19
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 6.8
3.9
Thermal Shock Resistance, points 27
12

Alloy Composition

Carbon (C), % 0.3 to 0.4
0 to 0.1
Chromium (Cr), % 12 to 14
22 to 26
Iron (Fe), % 82.4 to 87.6
54.8 to 66
Manganese (Mn), % 0 to 1.3
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 0
12 to 15
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0.15 to 0.35
0 to 0.040