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EN 1.4547 Stainless Steel vs. S31254 Stainless Steel

Both EN 1.4547 stainless steel and S31254 stainless steel are iron alloys. Their average alloy composition is basically identical. 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 1.4547 stainless steel and the bottom bar is S31254 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
40
Fatigue Strength, MPa 290
290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
80
Shear Strength, MPa 510
490
Tensile Strength: Ultimate (UTS), MPa 750
720
Tensile Strength: Yield (Proof), MPa 340
330

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1090
1090
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 460
460
Thermal Conductivity, W/m-K 14
14
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 28
28
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 5.6
5.5
Embodied Energy, MJ/kg 75
74
Embodied Water, L/kg 190
190

Common Calculations

PREN (Pitting Resistance) 45
44
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
240
Resilience: Unit (Modulus of Resilience), kJ/m3 290
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
25
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 3.8
3.8
Thermal Shock Resistance, points 16
15

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.020
Chromium (Cr), % 19.5 to 20.5
19.5 to 20.5
Copper (Cu), % 0.5 to 1.0
0.5 to 1.0
Iron (Fe), % 51 to 56.3
51.4 to 56.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 7.0
6.0 to 6.5
Nickel (Ni), % 17.5 to 18.5
17.5 to 18.5
Nitrogen (N), % 0.18 to 0.25
0.18 to 0.22
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.7
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.010