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ACI-ASTM CF8M Steel vs. EN 1.4162 Stainless Steel

Both ACI-ASTM CF8M steel and EN 1.4162 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF8M steel and the bottom bar is EN 1.4162 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 50
32
Fatigue Strength, MPa 280
410
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 540
780
Tensile Strength: Yield (Proof), MPa 290
520

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 1000
1000
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.8
2.6
Embodied Energy, MJ/kg 53
38
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 28
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
220
Resilience: Unit (Modulus of Resilience), kJ/m3 210
690
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
28
Strength to Weight: Bending, points 19
25
Thermal Diffusivity, mm2/s 4.3
4.0
Thermal Shock Resistance, points 12
21

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.040
Chromium (Cr), % 18 to 21
21 to 22
Copper (Cu), % 0
0.1 to 0.8
Iron (Fe), % 60.3 to 71
67.2 to 73.3
Manganese (Mn), % 0 to 1.5
4.0 to 6.0
Molybdenum (Mo), % 2.0 to 3.0
0.1 to 0.8
Nickel (Ni), % 9.0 to 12
1.4 to 1.9
Nitrogen (N), % 0
0.2 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015