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EN 1.4550 Stainless Steel vs. EN 1.0580 Steel

Both EN 1.4550 stainless steel and EN 1.0580 steel are iron alloys. They have 71% of their average alloy composition in common. 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 1.4550 stainless steel and the bottom bar is EN 1.0580 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 42
5.6 to 25
Fatigue Strength, MPa 210
210 to 270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 430
340 to 360
Tensile Strength: Ultimate (UTS), MPa 620
540 to 620
Tensile Strength: Yield (Proof), MPa 230
290 to 450

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 18
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
1.4
Embodied Energy, MJ/kg 51
18
Embodied Water, L/kg 140
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
31 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
230 to 540
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
19 to 22
Strength to Weight: Bending, points 21
19 to 21
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 14
17 to 20

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.22
Chromium (Cr), % 17 to 19
0
Iron (Fe), % 64.9 to 74
97.5 to 100
Manganese (Mn), % 0 to 2.0
0 to 1.6
Nickel (Ni), % 9.0 to 12
0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.55
Sulfur (S), % 0 to 0.015
0 to 0.045