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EN 1.1122 Steel vs. EN 1.4539 Stainless Steel

Both EN 1.1122 steel and EN 1.4539 stainless steel are iron alloys. They have 48% of their average alloy composition in common. There are 31 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 1.1122 steel and the bottom bar is EN 1.4539 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 130
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 21
38
Fatigue Strength, MPa 170 to 260
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 240 to 290
430
Tensile Strength: Ultimate (UTS), MPa 340 to 460
630
Tensile Strength: Yield (Proof), MPa 240 to 370
260

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 51
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
31
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 1.4
5.7
Embodied Energy, MJ/kg 18
78
Embodied Water, L/kg 46
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
190
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12 to 16
22
Strength to Weight: Bending, points 14 to 17
20
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 11 to 15
14

Alloy Composition

Carbon (C), % 0.080 to 0.12
0 to 0.020
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 0 to 0.25
1.2 to 2.0
Iron (Fe), % 98.7 to 99.62
43.1 to 51.8
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
24 to 26
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.3
0 to 0.7
Sulfur (S), % 0 to 0.025
0 to 0.010