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EN 1.1170 Steel vs. EN 1.4422 Stainless Steel

Both EN 1.1170 steel and EN 1.4422 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.1170 steel and the bottom bar is EN 1.4422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16 to 17
17
Fatigue Strength, MPa 220 to 330
380
Impact Strength: V-Notched Charpy, J 28 to 35
110
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 390 to 450
520
Tensile Strength: Ultimate (UTS), MPa 640 to 730
850
Tensile Strength: Yield (Proof), MPa 330 to 500
630

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
760
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
16
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
2.7
Embodied Energy, MJ/kg 19
37
Embodied Water, L/kg 49
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 100
130
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 670
1000
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 26
30
Strength to Weight: Bending, points 21 to 23
25
Thermal Diffusivity, mm2/s 13
4.3
Thermal Shock Resistance, points 20 to 23
31

Alloy Composition

Carbon (C), % 0.25 to 0.32
0 to 0.020
Chromium (Cr), % 0 to 0.4
11 to 13
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 96.7 to 98.5
76.8 to 83.5
Manganese (Mn), % 1.3 to 1.7
0 to 2.0
Molybdenum (Mo), % 0 to 0.1
1.3 to 1.8
Nickel (Ni), % 0 to 0.4
4.0 to 5.0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.035
0 to 0.0030