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EN 1.3956 Stainless Steel vs. EN 1.8912 Steel

Both EN 1.3956 stainless steel and EN 1.8912 steel are iron alloys. They have 60% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.3956 stainless steel and the bottom bar is EN 1.8912 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 27
20
Fatigue Strength, MPa 240
290
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 650
600
Tensile Strength: Yield (Proof), MPa 330
410

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1080
410
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 22
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.8
1.8
Embodied Energy, MJ/kg 68
24
Embodied Water, L/kg 180
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 270
460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
21
Strength to Weight: Bending, points 21
20
Thermal Shock Resistance, points 18
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.015
Carbon (C), % 0 to 0.060
0 to 0.22
Chromium (Cr), % 20.5 to 23.5
0 to 0.35
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 51.9 to 62.1
95 to 99.05
Manganese (Mn), % 4.0 to 6.0
1.0 to 1.8
Molybdenum (Mo), % 1.5 to 3.0
0 to 0.13
Nickel (Ni), % 11.5 to 13.5
0 to 0.85
Niobium (Nb), % 0.1 to 0.3
0 to 0.060
Nitrogen (N), % 0.2 to 0.4
0 to 0.027
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.65
Sulfur (S), % 0 to 0.030
0 to 0.025
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0.1 to 0.3
0 to 0.22