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ACI-ASTM CN3M Steel vs. EN 1.4865 Stainless Steel

Both ACI-ASTM CN3M steel and EN 1.4865 stainless steel are iron alloys. They have 86% of their average alloy composition in common.

For each property being compared, the top bar is ACI-ASTM CN3M steel and the bottom bar is EN 1.4865 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
6.8
Fatigue Strength, MPa 150
120
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 500
470
Tensile Strength: Yield (Proof), MPa 190
250

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Corrosion, °C 430
410
Maximum Temperature: Mechanical, °C 1100
1020
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 13
12
Thermal Expansion, µm/m-K 16
15

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 31
33
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 5.9
5.8
Embodied Energy, MJ/kg 80
81
Embodied Water, L/kg 200
200

Common Calculations

PREN (Pitting Resistance) 38
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
27
Resilience: Unit (Modulus of Resilience), kJ/m3 89
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
16
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 3.4
3.1
Thermal Shock Resistance, points 11
11

Alloy Composition

Carbon (C), % 0 to 0.030
0.3 to 0.5
Chromium (Cr), % 20 to 22
18 to 21
Iron (Fe), % 42.4 to 52.5
34.4 to 44.7
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 4.5 to 5.5
0 to 0.5
Nickel (Ni), % 23 to 27
36 to 39
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030