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EN 1.8936 Steel vs. EN 1.4423 Stainless Steel

Both EN 1.8936 steel and EN 1.4423 stainless steel are iron alloys. Both are furnished in the quenched and tempered condition. They have 79% 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 1.8936 steel and the bottom bar is EN 1.4423 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
17
Fatigue Strength, MPa 250
380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 370
520
Tensile Strength: Ultimate (UTS), MPa 600
850
Tensile Strength: Yield (Proof), MPa 370
630

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 410
780
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
16
Thermal Expansion, µm/m-K 13
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
14
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
3.2
Embodied Energy, MJ/kg 24
43
Embodied Water, L/kg 50
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
130
Resilience: Unit (Modulus of Resilience), kJ/m3 370
1000
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
30
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 11
4.3
Thermal Shock Resistance, points 17
31

Alloy Composition

Aluminum (Al), % 0 to 0.060
0
Carbon (C), % 0 to 0.2
0 to 0.020
Chromium (Cr), % 0 to 0.3
11 to 13
Copper (Cu), % 0 to 0.2
0.2 to 0.8
Iron (Fe), % 95.5 to 98.9
73.8 to 80.5
Manganese (Mn), % 1.0 to 1.7
0 to 2.0
Molybdenum (Mo), % 0 to 0.1
2.3 to 2.8
Nickel (Ni), % 0 to 1.0
6.0 to 7.0
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.020
0 to 0.020
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.0030
Vanadium (V), % 0 to 0.2
0