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EN 1.6580 Steel vs. S44735 Stainless Steel

Both EN 1.6580 steel and S44735 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.6580 steel and the bottom bar is S44735 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 350
220
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11 to 19
21
Fatigue Strength, MPa 310 to 610
300
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
82
Shear Strength, MPa 450 to 700
390
Tensile Strength: Ultimate (UTS), MPa 720 to 1170
630
Tensile Strength: Yield (Proof), MPa 460 to 990
460

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 450
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
21
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.8
4.4
Embodied Energy, MJ/kg 23
61
Embodied Water, L/kg 59
180

Common Calculations

PREN (Pitting Resistance) 3.3
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
120
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 2590
520
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 26 to 41
23
Strength to Weight: Bending, points 23 to 31
21
Thermal Shock Resistance, points 21 to 34
20

Alloy Composition

Carbon (C), % 0.26 to 0.34
0 to 0.030
Chromium (Cr), % 1.8 to 2.2
28 to 30
Iron (Fe), % 93.7 to 95.5
60.7 to 68.4
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.3 to 0.5
3.6 to 4.2
Nickel (Ni), % 1.8 to 2.2
0 to 1.0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.0