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EN 1.7711 Steel vs. S64512 Stainless Steel

Both EN 1.7711 steel and S64512 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 32 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 S64512 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 280
330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16 to 22
17
Fatigue Strength, MPa 290 to 520
540
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 440 to 570
700
Tensile Strength: Ultimate (UTS), MPa 690 to 930
1140
Tensile Strength: Yield (Proof), MPa 400 to 800
890

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 430
750
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 33
28
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
4.1

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.3
3.3
Embodied Energy, MJ/kg 32
47
Embodied Water, L/kg 54
110

Common Calculations

PREN (Pitting Resistance) 2.9
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 140
180
Resilience: Unit (Modulus of Resilience), kJ/m3 430 to 1690
2020
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 33
40
Strength to Weight: Bending, points 22 to 27
31
Thermal Diffusivity, mm2/s 8.9
7.5
Thermal Shock Resistance, points 24 to 32
42

Alloy Composition

Aluminum (Al), % 0 to 0.015
0
Carbon (C), % 0.36 to 0.44
0.080 to 0.15
Chromium (Cr), % 0.9 to 1.2
11 to 12.5
Iron (Fe), % 96 to 97.5
80.6 to 84.7
Manganese (Mn), % 0.45 to 0.85
0.5 to 0.9
Molybdenum (Mo), % 0.5 to 0.65
1.5 to 2.0
Nickel (Ni), % 0
2.0 to 3.0
Nitrogen (N), % 0
0.010 to 0.050
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0.25 to 0.35
0.25 to 0.4