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EN 1.1122 Steel vs. EN 1.4347 Stainless Steel

Both EN 1.1122 steel and EN 1.4347 stainless steel are iron alloys. They have 66% 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 1.4347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 21
23
Fatigue Strength, MPa 170 to 260
320
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 340 to 460
660
Tensile Strength: Yield (Proof), MPa 240 to 370
480

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
16
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 18
44
Embodied Water, L/kg 46
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
140
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
570
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 16
24
Strength to Weight: Bending, points 14 to 17
22
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 11 to 15
19

Alloy Composition

Carbon (C), % 0.080 to 0.12
0 to 0.050
Chromium (Cr), % 0
25 to 27
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98.7 to 99.62
62.2 to 69.4
Manganese (Mn), % 0.3 to 0.6
0 to 1.5
Nickel (Ni), % 0
5.5 to 7.5
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.3
0 to 1.5
Sulfur (S), % 0 to 0.025
0 to 0.020