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ACI-ASTM CN7M Steel vs. EN 1.4589 Stainless Steel

Both ACI-ASTM CN7M steel and EN 1.4589 stainless steel are iron alloys. They have 61% 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 ACI-ASTM CN7M steel and the bottom bar is EN 1.4589 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 44
17
Fatigue Strength, MPa 190
260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 480
650
Tensile Strength: Yield (Proof), MPa 200
440

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 430
470
Maximum Temperature: Mechanical, °C 1100
810
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1450
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 21
25
Thermal Expansion, µm/m-K 15
11

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 32
9.5
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.6
2.4
Embodied Energy, MJ/kg 78
34
Embodied Water, L/kg 210
110

Common Calculations

PREN (Pitting Resistance) 29
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
96
Resilience: Unit (Modulus of Resilience), kJ/m3 110
490
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
23
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 5.6
6.7
Thermal Shock Resistance, points 12
23

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.080
Chromium (Cr), % 19 to 22
13.5 to 15.5
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 37.4 to 48.5
78.2 to 85
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0.2 to 1.2
Nickel (Ni), % 27.5 to 30.5
1.0 to 2.5
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
Titanium (Ti), % 0
0.3 to 0.5