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EN 1.7711 Steel vs. EN 1.4587 Stainless Steel

Both EN 1.7711 steel and EN 1.4587 stainless steel are iron alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. 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 1.7711 steel and the bottom bar is EN 1.4587 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 280
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16 to 22
34
Fatigue Strength, MPa 290 to 520
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 690 to 930
540
Tensile Strength: Yield (Proof), MPa 400 to 800
250

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 430
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 33
17
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
36
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.3
6.3
Embodied Energy, MJ/kg 32
87
Embodied Water, L/kg 54
230

Common Calculations

PREN (Pitting Resistance) 2.9
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 140
150
Resilience: Unit (Modulus of Resilience), kJ/m3 430 to 1690
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 33
18
Strength to Weight: Bending, points 22 to 27
18
Thermal Diffusivity, mm2/s 8.9
4.5
Thermal Shock Resistance, points 24 to 32
13

Alloy Composition

Aluminum (Al), % 0 to 0.015
0
Carbon (C), % 0.36 to 0.44
0 to 0.030
Chromium (Cr), % 0.9 to 1.2
24 to 26
Copper (Cu), % 0
2.0 to 3.0
Iron (Fe), % 96 to 97.5
32.7 to 41.9
Manganese (Mn), % 0.45 to 0.85
0 to 2.0
Molybdenum (Mo), % 0.5 to 0.65
4.0 to 5.0
Nickel (Ni), % 0
28 to 30
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0.25 to 0.35
0