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EN 1.4361 Stainless Steel vs. ACI-ASTM CN7MS Steel

Both EN 1.4361 stainless steel and ACI-ASTM CN7MS steel are iron alloys. They have 86% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4361 stainless steel and the bottom bar is ACI-ASTM CN7MS steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 43
39
Fatigue Strength, MPa 220
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 630
540
Tensile Strength: Yield (Proof), MPa 250
230

Thermal Properties

Latent Heat of Fusion, J/g 350
340
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 940
1040
Melting Completion (Liquidus), °C 1370
1400
Melting Onset (Solidus), °C 1330
1350
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 14
12
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 19
28
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 3.6
5.1
Embodied Energy, MJ/kg 52
71
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 19
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
170
Resilience: Unit (Modulus of Resilience), kJ/m3 160
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
19
Strength to Weight: Bending, points 21
19
Thermal Diffusivity, mm2/s 3.7
3.2
Thermal Shock Resistance, points 15
13

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.070
Chromium (Cr), % 16.5 to 18.5
18 to 20
Copper (Cu), % 0
1.5 to 2.0
Iron (Fe), % 58.7 to 65.8
45.4 to 53.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.2
2.5 to 3.0
Nickel (Ni), % 14 to 16
22 to 25
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 3.7 to 4.5
2.5 to 3.5
Sulfur (S), % 0 to 0.010
0 to 0.030