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EN 1.8509 Steel vs. S32304 Stainless Steel

Both EN 1.8509 steel and S32304 stainless steel are iron alloys. They have 73% 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 1.8509 steel and the bottom bar is S32304 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
28
Fatigue Strength, MPa 580
330
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Shear Strength, MPa 680
440
Tensile Strength: Ultimate (UTS), MPa 1130
670
Tensile Strength: Yield (Proof), MPa 940
460

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 440
1050
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.6
2.8
Embodied Energy, MJ/kg 22
40
Embodied Water, L/kg 65
160

Common Calculations

PREN (Pitting Resistance) 2.6
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
170
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
520
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 40
24
Strength to Weight: Bending, points 31
22
Thermal Diffusivity, mm2/s 10
4.0
Thermal Shock Resistance, points 33
18

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.38 to 0.45
0 to 0.030
Chromium (Cr), % 1.5 to 1.8
21.5 to 24.5
Copper (Cu), % 0
0.050 to 0.6
Iron (Fe), % 95.5 to 97.1
65 to 75.4
Manganese (Mn), % 0.4 to 0.7
0 to 2.5
Molybdenum (Mo), % 0.2 to 0.35
0.050 to 0.6
Nickel (Ni), % 0
3.0 to 5.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.030