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EN 1.0303 Steel vs. S15500 Stainless Steel

Both EN 1.0303 steel and S15500 stainless steel are iron alloys. They have 76% 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 EN 1.0303 steel and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 84 to 120
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 25
6.8 to 16
Fatigue Strength, MPa 150 to 230
350 to 650
Poisson's Ratio 0.29
0.28
Reduction in Area, % 75 to 86
17 to 40
Shear Modulus, GPa 73
75
Shear Strength, MPa 220 to 260
540 to 870
Tensile Strength: Ultimate (UTS), MPa 290 to 410
890 to 1490
Tensile Strength: Yield (Proof), MPa 200 to 320
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
820
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 53
17
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
13
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 18
39
Embodied Water, L/kg 46
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 94
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 270
890 to 4460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 10 to 15
32 to 53
Strength to Weight: Bending, points 12 to 16
26 to 37
Thermal Diffusivity, mm2/s 14
4.6
Thermal Shock Resistance, points 9.2 to 13
30 to 50

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
0
Carbon (C), % 0.020 to 0.060
0 to 0.070
Chromium (Cr), % 0
14 to 15.5
Copper (Cu), % 0
2.5 to 4.5
Iron (Fe), % 99.335 to 99.71
71.9 to 79.9
Manganese (Mn), % 0.25 to 0.4
0 to 1.0
Nickel (Ni), % 0
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030