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S64512 Stainless Steel vs. EN 1.8550 Steel

Both S64512 stainless steel and EN 1.8550 steel are iron alloys. They have 86% of their average alloy composition in common. There are 33 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 S64512 stainless steel and the bottom bar is EN 1.8550 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
300
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
11
Fatigue Strength, MPa 540
470
Impact Strength: V-Notched Charpy, J 47
34
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 700
600
Tensile Strength: Ultimate (UTS), MPa 1140
1000
Tensile Strength: Yield (Proof), MPa 890
760

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 750
440
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 28
40
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
3.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.7
Embodied Energy, MJ/kg 47
23
Embodied Water, L/kg 110
67

Common Calculations

PREN (Pitting Resistance) 18
2.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
100
Resilience: Unit (Modulus of Resilience), kJ/m3 2020
1550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 40
36
Strength to Weight: Bending, points 31
29
Thermal Diffusivity, mm2/s 7.5
11
Thermal Shock Resistance, points 42
29

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0.080 to 0.15
0.3 to 0.37
Chromium (Cr), % 11 to 12.5
1.5 to 1.8
Iron (Fe), % 80.6 to 84.7
94.4 to 96.3
Manganese (Mn), % 0.5 to 0.9
0.4 to 0.7
Molybdenum (Mo), % 1.5 to 2.0
0.15 to 0.25
Nickel (Ni), % 2.0 to 3.0
0.85 to 1.2
Nitrogen (N), % 0.010 to 0.050
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.035
Vanadium (V), % 0.25 to 0.4
0