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EN 1.4547 Stainless Steel vs. ACI-ASTM CF3MN Steel

Both EN 1.4547 stainless steel and ACI-ASTM CF3MN steel are iron alloys. They have 88% 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 EN 1.4547 stainless steel and the bottom bar is ACI-ASTM CF3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
39
Fatigue Strength, MPa 290
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 750
580
Tensile Strength: Yield (Proof), MPa 340
290

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1090
1010
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 28
19
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.6
3.9
Embodied Energy, MJ/kg 75
53
Embodied Water, L/kg 190
160

Common Calculations

PREN (Pitting Resistance) 45
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
190
Resilience: Unit (Modulus of Resilience), kJ/m3 290
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
20
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 3.8
4.1
Thermal Shock Resistance, points 16
13

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 19.5 to 20.5
17 to 22
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 51 to 56.3
58.7 to 71.9
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 6.0 to 7.0
2.0 to 3.0
Nickel (Ni), % 17.5 to 18.5
9.0 to 13
Nitrogen (N), % 0.18 to 0.25
0.1 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.040