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EN 1.1181 Steel vs. EN 1.4376 Stainless Steel

Both EN 1.1181 steel and EN 1.4376 stainless steel are iron alloys. They have 72% 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 1.1181 steel and the bottom bar is EN 1.4376 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
230
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19 to 20
45
Fatigue Strength, MPa 190 to 260
420
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 350 to 390
530
Tensile Strength: Ultimate (UTS), MPa 560 to 620
750
Tensile Strength: Yield (Proof), MPa 280 to 380
450

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
930
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 42
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.6
Embodied Energy, MJ/kg 19
37
Embodied Water, L/kg 47
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
290
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 380
520
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20 to 22
27
Strength to Weight: Bending, points 19 to 21
24
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 19 to 21
17

Alloy Composition

Carbon (C), % 0.32 to 0.39
0 to 0.1
Chromium (Cr), % 0 to 0.4
17 to 20.5
Iron (Fe), % 97.4 to 99.18
65.5 to 76
Manganese (Mn), % 0.5 to 0.8
5.0 to 8.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
2.0 to 4.5
Nitrogen (N), % 0
0 to 0.3
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