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EN 1.4374 Stainless Steel vs. S32550 Stainless Steel

Both EN 1.4374 stainless steel and S32550 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 33 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 1.4374 stainless steel and the bottom bar is S32550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
21
Fatigue Strength, MPa 340
400
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 550
540
Tensile Strength: Ultimate (UTS), MPa 800
860
Tensile Strength: Yield (Proof), MPa 400
620

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 920
1100
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1360
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
20
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.9
3.8
Embodied Energy, MJ/kg 42
53
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 23
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
160
Resilience: Unit (Modulus of Resilience), kJ/m3 400
940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
31
Strength to Weight: Bending, points 25
26
Thermal Diffusivity, mm2/s 4.0
4.4
Thermal Shock Resistance, points 17
23

Alloy Composition

Carbon (C), % 0.050 to 0.1
0 to 0.040
Chromium (Cr), % 17.5 to 18.5
24 to 27
Copper (Cu), % 0 to 0.4
1.5 to 2.5
Iron (Fe), % 63.5 to 67.9
57.2 to 67
Manganese (Mn), % 9.0 to 10
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
2.9 to 3.9
Nickel (Ni), % 5.0 to 6.0
4.5 to 6.5
Nitrogen (N), % 0.25 to 0.32
0.1 to 0.25
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030