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EN 1.1122 Steel vs. EN 1.4469 Stainless Steel

Both EN 1.1122 steel and EN 1.4469 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 1.4469 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 12 to 21
25
Fatigue Strength, MPa 170 to 260
380
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 340 to 460
740
Tensile Strength: Yield (Proof), MPa 240 to 370
550

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
17
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
21
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
4.1
Embodied Energy, MJ/kg 18
57
Embodied Water, L/kg 46
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
170
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
730
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 16
26
Strength to Weight: Bending, points 14 to 17
23
Thermal Diffusivity, mm2/s 14
4.6
Thermal Shock Resistance, points 11 to 15
20

Alloy Composition

Carbon (C), % 0.080 to 0.12
0 to 0.030
Chromium (Cr), % 0
25 to 27
Copper (Cu), % 0 to 0.25
0 to 1.3
Iron (Fe), % 98.7 to 99.62
56.4 to 65.9
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.025