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EN 1.1122 Steel vs. EN 1.4655 Stainless Steel

Both EN 1.1122 steel and EN 1.4655 stainless steel are iron alloys. They have 69% 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 1.1122 steel and the bottom bar is EN 1.4655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 21
23 to 25
Fatigue Strength, MPa 170 to 260
320
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
78
Shear Strength, MPa 240 to 290
460
Tensile Strength: Ultimate (UTS), MPa 340 to 460
720 to 730
Tensile Strength: Yield (Proof), MPa 240 to 370
450 to 480

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1050
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
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
15
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.9
Embodied Energy, MJ/kg 18
41
Embodied Water, L/kg 46
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
150 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
510 to 580
Stiffness to Weight: Axial, points 13
14
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
4.0
Thermal Shock Resistance, points 11 to 15
20

Alloy Composition

Carbon (C), % 0.080 to 0.12
0 to 0.030
Chromium (Cr), % 0
22 to 24
Copper (Cu), % 0 to 0.25
1.0 to 3.0
Iron (Fe), % 98.7 to 99.62
63.6 to 73.4
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0
0.1 to 0.6
Nickel (Ni), % 0
3.5 to 5.5
Nitrogen (N), % 0
0.050 to 0.2
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 0.015

Comparable Variants