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EN 1.1122 Steel vs. EN 1.4542 Stainless Steel

Both EN 1.1122 steel and EN 1.4542 stainless steel are iron alloys. They have 75% 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 1.4542 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 21
5.7 to 20
Fatigue Strength, MPa 170 to 260
370 to 640
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 240 to 290
550 to 860
Tensile Strength: Ultimate (UTS), MPa 340 to 460
880 to 1470
Tensile Strength: Yield (Proof), MPa 240 to 370
580 to 1300

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
860
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
16
Thermal Expansion, µm/m-K 12
11

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
13
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 18
39
Embodied Water, L/kg 46
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
62 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
880 to 4360
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 16
31 to 52
Strength to Weight: Bending, points 14 to 17
26 to 37
Thermal Diffusivity, mm2/s 14
4.3
Thermal Shock Resistance, points 11 to 15
29 to 49

Alloy Composition

Carbon (C), % 0.080 to 0.12
0 to 0.070
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 0 to 0.25
3.0 to 5.0
Iron (Fe), % 98.7 to 99.62
69.6 to 79
Manganese (Mn), % 0.3 to 0.6
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.6
Nickel (Ni), % 0
3.0 to 5.0
Niobium (Nb), % 0
0 to 0.45
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 0.7
Sulfur (S), % 0 to 0.025
0 to 0.015