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EN 1.5520 Steel vs. S30815 Stainless Steel

Both EN 1.5520 steel and S30815 stainless steel are iron alloys. They have 66% 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 1.5520 steel and the bottom bar is S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 170
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 21
45
Fatigue Strength, MPa 210 to 300
320
Poisson's Ratio 0.29
0.28
Reduction in Area, % 62 to 75
56
Shear Modulus, GPa 73
77
Shear Strength, MPa 290 to 340
480
Tensile Strength: Ultimate (UTS), MPa 410 to 1410
680
Tensile Strength: Yield (Proof), MPa 300 to 480
350

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1020
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 50
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.3
Embodied Energy, MJ/kg 19
47
Embodied Water, L/kg 48
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 230
260
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 600
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 50
25
Strength to Weight: Bending, points 16 to 36
22
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 12 to 41
15

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.15 to 0.2
0.050 to 0.1
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0 to 0.3
20 to 22
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.7 to 98.9
62.8 to 68.4
Manganese (Mn), % 0.9 to 1.2
0 to 0.8
Nickel (Ni), % 0
10 to 12
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
1.4 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.030