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EN 1.4903 Stainless Steel vs. S35140 Stainless Steel

Both EN 1.4903 stainless steel and S35140 stainless steel are iron alloys. They have 59% of their average alloy composition in common. There are 32 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 1.4903 stainless steel and the bottom bar is S35140 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 21
34
Fatigue Strength, MPa 320 to 330
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
78
Shear Strength, MPa 420
460
Tensile Strength: Ultimate (UTS), MPa 670 to 680
690
Tensile Strength: Yield (Proof), MPa 500
310

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 380
500
Maximum Temperature: Mechanical, °C 650
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
14
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.6
5.5
Embodied Energy, MJ/kg 36
78
Embodied Water, L/kg 88
190

Common Calculations

PREN (Pitting Resistance) 13
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
190
Resilience: Unit (Modulus of Resilience), kJ/m3 650
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 7.0
3.7
Thermal Shock Resistance, points 23
16

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.12
0 to 0.1
Chromium (Cr), % 8.0 to 9.5
20 to 22
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 87.1 to 90.5
44.1 to 52.7
Manganese (Mn), % 0.3 to 0.6
1.0 to 3.0
Molybdenum (Mo), % 0.85 to 1.1
1.0 to 2.0
Nickel (Ni), % 0 to 0.4
25 to 27
Niobium (Nb), % 0.060 to 0.1
0.25 to 0.75
Nitrogen (N), % 0.030 to 0.070
0.080 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0.18 to 0.25
0