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EN 1.4742 Stainless Steel vs. S32550 Stainless Steel

Both EN 1.4742 stainless steel and S32550 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 81% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4742 stainless steel and the bottom bar is S32550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
21
Fatigue Strength, MPa 180
400
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 370
540
Tensile Strength: Ultimate (UTS), MPa 600
860
Tensile Strength: Yield (Proof), MPa 300
620

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 1000
1100
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 19
16
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
20
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.2
3.8
Embodied Energy, MJ/kg 32
53
Embodied Water, L/kg 130
180

Common Calculations

PREN (Pitting Resistance) 18
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
160
Resilience: Unit (Modulus of Resilience), kJ/m3 230
940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
31
Strength to Weight: Bending, points 21
26
Thermal Diffusivity, mm2/s 5.1
4.4
Thermal Shock Resistance, points 21
23

Alloy Composition

Aluminum (Al), % 0.7 to 1.2
0
Carbon (C), % 0 to 0.12
0 to 0.040
Chromium (Cr), % 17 to 19
24 to 27
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 77.2 to 81.6
57.2 to 67
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0
2.9 to 3.9
Nickel (Ni), % 0
4.5 to 6.5
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.7 to 1.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030