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S30530 Stainless Steel vs. EN 1.7231 Steel

Both S30530 stainless steel and EN 1.7231 steel are iron alloys. They have 68% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S30530 stainless steel and the bottom bar is EN 1.7231 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
240 to 280
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 46
11 to 12
Fatigue Strength, MPa 210
360 to 500
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 590
790 to 930
Tensile Strength: Yield (Proof), MPa 230
570 to 800

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 970
420
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
46
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 18
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.4
1.5
Embodied Energy, MJ/kg 48
20
Embodied Water, L/kg 150
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
87 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 130
870 to 1700
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
28 to 33
Strength to Weight: Bending, points 20
24 to 27
Thermal Diffusivity, mm2/s 4.1
12
Thermal Shock Resistance, points 13
23 to 27

Alloy Composition

Carbon (C), % 0 to 0.080
0.38 to 0.45
Chromium (Cr), % 17 to 20.5
0.8 to 1.2
Copper (Cu), % 0.75 to 3.5
0
Iron (Fe), % 58.4 to 72.5
96.4 to 98.1
Manganese (Mn), % 0 to 2.0
0.6 to 1.0
Molybdenum (Mo), % 0.75 to 1.5
0.15 to 0.3
Nickel (Ni), % 8.5 to 11.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0.5 to 2.5
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030