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EN 1.4371 Stainless Steel vs. ACI-ASTM CN3MN Steel

Both EN 1.4371 stainless steel and ACI-ASTM CN3MN steel are iron alloys. They have 69% 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 EN 1.4371 stainless steel and the bottom bar is ACI-ASTM CN3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
180
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 45 to 51
39
Fatigue Strength, MPa 290 to 340
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 740 to 750
620
Tensile Strength: Yield (Proof), MPa 320 to 340
300

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 410
430
Maximum Temperature: Mechanical, °C 880
1100
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
33
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 2.6
6.2
Embodied Energy, MJ/kg 38
84
Embodied Water, L/kg 140
200

Common Calculations

PREN (Pitting Resistance) 20
46
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 310
200
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 300
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
21
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 4.0
3.4
Thermal Shock Resistance, points 16
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 16 to 17.5
20 to 22
Copper (Cu), % 0 to 1.0
0 to 0.75
Iron (Fe), % 66.7 to 74.4
41.4 to 50.3
Manganese (Mn), % 6.0 to 8.0
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 3.5 to 5.5
23.5 to 25.5
Nitrogen (N), % 0.15 to 0.25
0.18 to 0.26
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010