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EN 1.4107 Stainless Steel vs. ACI-ASTM CN7M Steel

Both EN 1.4107 stainless steel and ACI-ASTM CN7M steel are iron alloys. They have 57% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4107 stainless steel and the bottom bar is ACI-ASTM CN7M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18 to 21
44
Fatigue Strength, MPa 260 to 350
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 620 to 700
480
Tensile Strength: Yield (Proof), MPa 400 to 570
200

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 740
1100
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1410
1450
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
21
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
32
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.1
5.6
Embodied Energy, MJ/kg 30
78
Embodied Water, L/kg 100
210

Common Calculations

PREN (Pitting Resistance) 13
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
170
Resilience: Unit (Modulus of Resilience), kJ/m3 420 to 840
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22 to 25
17
Strength to Weight: Bending, points 21 to 22
17
Thermal Diffusivity, mm2/s 7.2
5.6
Thermal Shock Resistance, points 22 to 25
12

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.070
Chromium (Cr), % 11.5 to 12.5
19 to 22
Copper (Cu), % 0 to 0.3
3.0 to 4.0
Iron (Fe), % 83.8 to 87.2
37.4 to 48.5
Manganese (Mn), % 0.5 to 0.8
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
2.0 to 3.0
Nickel (Ni), % 0.8 to 1.5
27.5 to 30.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.5
Sulfur (S), % 0 to 0.020
0 to 0.040
Vanadium (V), % 0 to 0.080
0