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EN 1.1122 Steel vs. EN 1.4017 Stainless Steel

Both EN 1.1122 steel and EN 1.4017 stainless steel are iron alloys. They have 81% 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 1.4017 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 21
14
Fatigue Strength, MPa 170 to 260
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 240 to 290
350
Tensile Strength: Ultimate (UTS), MPa 340 to 460
580
Tensile Strength: Yield (Proof), MPa 240 to 370
390

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
870
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
30
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.2
Embodied Energy, MJ/kg 18
31
Embodied Water, L/kg 46
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
71
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
380
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 16
21
Strength to Weight: Bending, points 14 to 17
20
Thermal Diffusivity, mm2/s 14
8.1
Thermal Shock Resistance, points 11 to 15
20

Alloy Composition

Carbon (C), % 0.080 to 0.12
0 to 0.080
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98.7 to 99.62
78.3 to 82.8
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Nickel (Ni), % 0
1.2 to 1.6
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015