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EN 1.4313 Stainless Steel vs. ACI-ASTM CF8M Steel

Both EN 1.4313 stainless steel and ACI-ASTM CF8M steel are iron alloys. They have 84% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4313 stainless steel and the bottom bar is ACI-ASTM CF8M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 12 to 17
50
Fatigue Strength, MPa 340 to 510
280
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 750 to 1000
540
Tensile Strength: Yield (Proof), MPa 580 to 910
290

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 780
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 10
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 10
19
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.4
3.8
Embodied Energy, MJ/kg 34
53
Embodied Water, L/kg 110
160

Common Calculations

PREN (Pitting Resistance) 15
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 150
230
Resilience: Unit (Modulus of Resilience), kJ/m3 870 to 2100
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 36
19
Strength to Weight: Bending, points 23 to 28
19
Thermal Diffusivity, mm2/s 6.7
4.3
Thermal Shock Resistance, points 27 to 36
12

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 12 to 14
18 to 21
Iron (Fe), % 78.5 to 84.2
60.3 to 71
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 0.3 to 0.7
2.0 to 3.0
Nickel (Ni), % 3.5 to 4.5
9.0 to 12
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.040