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EN 1.7108 Steel vs. S30441 Stainless Steel

Both EN 1.7108 steel and S30441 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.7108 steel and the bottom bar is S30441 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 510
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Tensile Strength: Ultimate (UTS), MPa 670 to 2070
580

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Mechanical, °C 410
940
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 46
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
18
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.4
Embodied Energy, MJ/kg 20
50
Embodied Water, L/kg 47
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 75
21
Strength to Weight: Bending, points 22 to 47
20
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 20 to 63
13

Alloy Composition

Carbon (C), % 0.57 to 0.65
0 to 0.080
Chromium (Cr), % 0.2 to 0.45
17.5 to 19.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 95.9 to 96.9
62 to 71.7
Manganese (Mn), % 0.7 to 1.0
0 to 2.0
Nickel (Ni), % 0
8.0 to 10.5
Niobium (Nb), % 0
0.1 to 0.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 1.6 to 2.0
1.0 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
0.2 to 0.8