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EN 1.4806 Stainless Steel vs. ACI-ASTM CF3MN Steel

Both EN 1.4806 stainless steel and ACI-ASTM CF3MN steel are iron alloys. They have 74% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4806 stainless steel and the bottom bar is ACI-ASTM CF3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 6.8
39
Fatigue Strength, MPa 120
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
78
Tensile Strength: Ultimate (UTS), MPa 470
580
Tensile Strength: Yield (Proof), MPa 250
290

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Corrosion, °C 400
420
Maximum Temperature: Mechanical, °C 1000
1010
Melting Completion (Liquidus), °C 1380
1440
Melting Onset (Solidus), °C 1340
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 15
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 31
19
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
3.9
Embodied Energy, MJ/kg 76
53
Embodied Water, L/kg 190
160

Common Calculations

PREN (Pitting Resistance) 18
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
190
Resilience: Unit (Modulus of Resilience), kJ/m3 160
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16
20
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 3.1
4.1
Thermal Shock Resistance, points 11
13

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.030
Chromium (Cr), % 16 to 18
17 to 22
Iron (Fe), % 40.4 to 48.7
58.7 to 71.9
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
2.0 to 3.0
Nickel (Ni), % 34 to 36
9.0 to 13
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040