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S45000 Stainless Steel vs. EN 1.8550 Steel

Both S45000 stainless steel and EN 1.8550 steel are iron alloys. They have 79% of their average alloy composition in common. There are 32 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 S45000 stainless steel and the bottom bar is EN 1.8550 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 410
300
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 6.8 to 14
11
Fatigue Strength, MPa 330 to 650
470
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 590 to 830
600
Tensile Strength: Ultimate (UTS), MPa 980 to 1410
1000
Tensile Strength: Yield (Proof), MPa 580 to 1310
760

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 840
440
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
40
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 13
3.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.7
Embodied Energy, MJ/kg 39
23
Embodied Water, L/kg 130
67

Common Calculations

PREN (Pitting Resistance) 17
2.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 94 to 160
100
Resilience: Unit (Modulus of Resilience), kJ/m3 850 to 4400
1550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 35 to 50
36
Strength to Weight: Bending, points 28 to 36
29
Thermal Diffusivity, mm2/s 4.5
11
Thermal Shock Resistance, points 33 to 47
29

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.050
0.3 to 0.37
Chromium (Cr), % 14 to 16
1.5 to 1.8
Copper (Cu), % 1.3 to 1.8
0
Iron (Fe), % 72.1 to 79.3
94.4 to 96.3
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0.5 to 1.0
0.15 to 0.25
Nickel (Ni), % 5.0 to 7.0
0.85 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035