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S31254 Stainless Steel vs. EN 1.4003 Stainless Steel

Both S31254 stainless steel and EN 1.4003 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 67% 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 S31254 stainless steel and the bottom bar is EN 1.4003 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
22
Fatigue Strength, MPa 290
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
76
Shear Strength, MPa 490
340
Tensile Strength: Ultimate (UTS), MPa 720
540
Tensile Strength: Yield (Proof), MPa 330
320

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 1090
720
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 14
25
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 28
6.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.5
1.9
Embodied Energy, MJ/kg 74
27
Embodied Water, L/kg 190
97

Common Calculations

PREN (Pitting Resistance) 44
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
100
Resilience: Unit (Modulus of Resilience), kJ/m3 270
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
19
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 3.8
6.7
Thermal Shock Resistance, points 15
19

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 19.5 to 20.5
10.5 to 12.5
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 51.4 to 56.3
83.9 to 89.2
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 6.0 to 6.5
0
Nickel (Ni), % 17.5 to 18.5
0.3 to 1.0
Nitrogen (N), % 0.18 to 0.22
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015