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EN 1.1122 Steel vs. EN 1.4150 Stainless Steel

Both EN 1.1122 steel and EN 1.4150 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.1122 steel and the bottom bar is EN 1.4150 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 130
220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 21
20
Fatigue Strength, MPa 170 to 260
270
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 240 to 290
460
Tensile Strength: Ultimate (UTS), MPa 340 to 460
730
Tensile Strength: Yield (Proof), MPa 240 to 370
430

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
840
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 51
23
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
8.5
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 18
42
Embodied Water, L/kg 46
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
470
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 16
27
Strength to Weight: Bending, points 14 to 17
24
Thermal Diffusivity, mm2/s 14
6.2
Thermal Shock Resistance, points 11 to 15
27

Alloy Composition

Carbon (C), % 0.080 to 0.12
0.45 to 0.6
Chromium (Cr), % 0
15 to 16.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98.7 to 99.62
79 to 82.8
Manganese (Mn), % 0.3 to 0.6
0 to 0.8
Molybdenum (Mo), % 0
0.2 to 0.4
Nickel (Ni), % 0
0 to 0.4
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.3
1.3 to 1.7
Sulfur (S), % 0 to 0.025
0 to 0.010
Vanadium (V), % 0
0.2 to 0.4