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EN 1.1203 Steel vs. S31260 Stainless Steel

Both EN 1.1203 steel and S31260 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.1203 steel and the bottom bar is S31260 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 230
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 15
23
Fatigue Strength, MPa 210 to 310
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
80
Shear Strength, MPa 420 to 480
500
Tensile Strength: Ultimate (UTS), MPa 690 to 780
790
Tensile Strength: Yield (Proof), MPa 340 to 480
540

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 48
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
20
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.9
Embodied Energy, MJ/kg 19
53
Embodied Water, L/kg 47
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 69 to 100
160
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 610
720
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 28
28
Strength to Weight: Bending, points 22 to 24
24
Thermal Diffusivity, mm2/s 13
4.3
Thermal Shock Resistance, points 22 to 25
22

Alloy Composition

Carbon (C), % 0.52 to 0.6
0 to 0.030
Chromium (Cr), % 0 to 0.4
24 to 26
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 97.1 to 98.9
59.6 to 67.6
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Molybdenum (Mo), % 0 to 0.1
2.5 to 3.5
Nickel (Ni), % 0 to 0.4
5.5 to 7.5
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.035
0 to 0.030
Tungsten (W), % 0
0.1 to 0.5