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ACI-ASTM CF20 Steel vs. EN 1.4310 Stainless Steel

Both ACI-ASTM CF20 steel and EN 1.4310 stainless steel are iron alloys. They have a very high 96% 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 ACI-ASTM CF20 steel and the bottom bar is EN 1.4310 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 50
14 to 45
Fatigue Strength, MPa 240
240 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 530
730 to 900
Tensile Strength: Yield (Proof), MPa 250
260 to 570

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 970
910
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 16
14
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
2.9
Embodied Energy, MJ/kg 44
42
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 20
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
110 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 160
170 to 830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
26 to 32
Strength to Weight: Bending, points 19
23 to 27
Thermal Diffusivity, mm2/s 4.3
4.0
Thermal Shock Resistance, points 11
15 to 18

Alloy Composition

Carbon (C), % 0 to 0.2
0.050 to 0.15
Chromium (Cr), % 18 to 21
16 to 19
Iron (Fe), % 64.2 to 74
66.4 to 78
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.8
Nickel (Ni), % 8.0 to 11
6.0 to 9.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.0
0 to 2.0
Sulfur (S), % 0 to 0.040
0 to 0.015