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EN 1.1170 Steel vs. EN 1.4857 Stainless Steel

Both EN 1.1170 steel and EN 1.4857 stainless steel are iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. 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 1.1170 steel and the bottom bar is EN 1.4857 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16 to 17
6.7
Fatigue Strength, MPa 220 to 330
120
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 640 to 730
500
Tensile Strength: Yield (Proof), MPa 330 to 500
250

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1370
Melting Onset (Solidus), °C 1420
1320
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
13
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
34
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
5.7
Embodied Energy, MJ/kg 19
81
Embodied Water, L/kg 49
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 100
28
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 670
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 26
18
Strength to Weight: Bending, points 21 to 23
18
Thermal Diffusivity, mm2/s 13
3.4
Thermal Shock Resistance, points 20 to 23
11

Alloy Composition

Carbon (C), % 0.25 to 0.32
0.3 to 0.5
Chromium (Cr), % 0 to 0.4
24 to 27
Iron (Fe), % 96.7 to 98.5
31.4 to 41.7
Manganese (Mn), % 1.3 to 1.7
0 to 2.0
Molybdenum (Mo), % 0 to 0.1
0 to 0.5
Nickel (Ni), % 0 to 0.4
33 to 36
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.4
1.0 to 2.5
Sulfur (S), % 0 to 0.035
0 to 0.030