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EN 1.4490 Stainless Steel vs. S32750 Stainless Steel

Both EN 1.4490 stainless steel and S32750 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4490 stainless steel and the bottom bar is S32750 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
17
Fatigue Strength, MPa 210
360
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
81
Tensile Strength: Ultimate (UTS), MPa 560
860
Tensile Strength: Yield (Proof), MPa 260
590

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 990
1100
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
21
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.7
4.1
Embodied Energy, MJ/kg 52
56
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 29
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
130
Resilience: Unit (Modulus of Resilience), kJ/m3 170
860
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
31
Strength to Weight: Bending, points 19
26
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 16
25

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 18 to 20
24 to 26
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 61.7 to 70.9
58.1 to 66.8
Manganese (Mn), % 0 to 2.0
0 to 1.2
Molybdenum (Mo), % 2.0 to 2.5
3.0 to 5.0
Nickel (Ni), % 9.0 to 12
6.0 to 8.0
Nitrogen (N), % 0.12 to 0.2
0.24 to 0.32
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.5
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.020