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EN 1.1170 Steel vs. EN 1.4372 Stainless Steel

Both EN 1.1170 steel and EN 1.4372 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, 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 1.4372 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
220
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16 to 17
47
Fatigue Strength, MPa 220 to 330
330
Impact Strength: V-Notched Charpy, J 28 to 35
90
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 390 to 450
560
Tensile Strength: Ultimate (UTS), MPa 640 to 730
790
Tensile Strength: Yield (Proof), MPa 330 to 500
350

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
880
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
15
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.6
Embodied Energy, MJ/kg 19
38
Embodied Water, L/kg 49
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 100
310
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 670
320
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 26
29
Strength to Weight: Bending, points 21 to 23
25
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 20 to 23
17

Alloy Composition

Carbon (C), % 0.25 to 0.32
0 to 0.15
Chromium (Cr), % 0 to 0.4
16 to 18
Iron (Fe), % 96.7 to 98.5
67.5 to 75
Manganese (Mn), % 1.3 to 1.7
5.5 to 7.5
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
3.5 to 5.5
Nitrogen (N), % 0
0.050 to 0.25
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.015