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EN 1.6308 Steel vs. EN 1.4122 Stainless Steel

Both EN 1.6308 steel and EN 1.4122 stainless steel are iron alloys. They have 82% 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 1.6308 steel and the bottom bar is EN 1.4122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
14
Fatigue Strength, MPa 320
260 to 360
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 390
480 to 520
Tensile Strength: Ultimate (UTS), MPa 610
790 to 850
Tensile Strength: Yield (Proof), MPa 460
450 to 630

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 410
870
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
9.5
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.6
2.4
Embodied Energy, MJ/kg 22
33
Embodied Water, L/kg 50
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
93 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 550
520 to 1000
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
28 to 31
Strength to Weight: Bending, points 20
25 to 26
Thermal Diffusivity, mm2/s 10
4.0
Thermal Shock Resistance, points 18
28 to 30

Alloy Composition

Carbon (C), % 0 to 0.2
0.33 to 0.45
Chromium (Cr), % 0
15.5 to 17.5
Iron (Fe), % 96.4 to 97.9
77.2 to 83.4
Manganese (Mn), % 1.2 to 1.6
0 to 1.5
Molybdenum (Mo), % 0.45 to 0.55
0.8 to 1.3
Nickel (Ni), % 0.5 to 0.8
0 to 1.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Vanadium (V), % 0 to 0.030
0