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ACI-ASTM CF3MN Steel vs. EN 1.4749 Stainless Steel

Both ACI-ASTM CF3MN steel and EN 1.4749 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF3MN steel and the bottom bar is EN 1.4749 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
16
Fatigue Strength, MPa 250
190
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 580
600
Tensile Strength: Yield (Proof), MPa 290
320

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 1010
1100
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 19
13
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 3.9
2.5
Embodied Energy, MJ/kg 53
36
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 30
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
80
Resilience: Unit (Modulus of Resilience), kJ/m3 210
250
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 4.1
4.6
Thermal Shock Resistance, points 13
22

Alloy Composition

Carbon (C), % 0 to 0.030
0.15 to 0.2
Chromium (Cr), % 17 to 22
26 to 29
Iron (Fe), % 58.7 to 71.9
68.5 to 73.7
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 9.0 to 13
0
Nitrogen (N), % 0.1 to 0.2
0.15 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015