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ACI-ASTM CN3M Steel vs. EN 1.4309 Stainless Steel

Both ACI-ASTM CN3M steel and EN 1.4309 stainless steel are iron alloys. They have 78% 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 CN3M steel and the bottom bar is EN 1.4309 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
34
Fatigue Strength, MPa 150
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 500
490
Tensile Strength: Yield (Proof), MPa 190
210

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 430
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 31
16
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.9
3.1
Embodied Energy, MJ/kg 80
45
Embodied Water, L/kg 200
150

Common Calculations

PREN (Pitting Resistance) 38
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
140
Resilience: Unit (Modulus of Resilience), kJ/m3 89
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
18
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 3.4
4.1
Thermal Shock Resistance, points 11
11

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 20 to 22
18 to 20
Iron (Fe), % 42.4 to 52.5
64.2 to 73
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 23 to 27
9.0 to 12
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.025