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EN 1.4512 Stainless Steel vs. ACI-ASTM CF8M Steel

Both EN 1.4512 stainless steel and ACI-ASTM CF8M steel are iron alloys. They have 78% of their average alloy composition in common. There are 31 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 EN 1.4512 stainless steel and the bottom bar is ACI-ASTM CF8M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 28
50
Fatigue Strength, MPa 180
280
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 470
540
Tensile Strength: Yield (Proof), MPa 240
290

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 720
1000
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
16
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
19
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
3.8
Embodied Energy, MJ/kg 27
53
Embodied Water, L/kg 95
160

Common Calculations

PREN (Pitting Resistance) 12
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
230
Resilience: Unit (Modulus of Resilience), kJ/m3 150
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 17
19
Thermal Diffusivity, mm2/s 6.7
4.3
Thermal Shock Resistance, points 17
12

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 10.5 to 12.5
18 to 21
Iron (Fe), % 84.8 to 89.5
60.3 to 71
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
9.0 to 12
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.040
Titanium (Ti), % 0 to 0.65
0