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EN 1.4903 Stainless Steel vs. S32003 Stainless Steel

Both EN 1.4903 stainless steel and S32003 stainless steel are iron alloys. They have 83% 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 S32003 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 21
28
Fatigue Strength, MPa 320 to 330
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
79
Shear Strength, MPa 420
480
Tensile Strength: Ultimate (UTS), MPa 670 to 680
730
Tensile Strength: Yield (Proof), MPa 500
510

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 380
430
Maximum Temperature: Mechanical, °C 650
1010
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
15
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
14
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
3.0
Embodied Energy, MJ/kg 36
42
Embodied Water, L/kg 88
150

Common Calculations

PREN (Pitting Resistance) 13
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
180
Resilience: Unit (Modulus of Resilience), kJ/m3 650
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
26
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 7.0
4.0
Thermal Shock Resistance, points 23
21

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.12
0 to 0.030
Chromium (Cr), % 8.0 to 9.5
19.5 to 22.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 87.1 to 90.5
68.2 to 75.9
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.85 to 1.1
1.5 to 2.0
Nickel (Ni), % 0 to 0.4
3.0 to 4.0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0.14 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Vanadium (V), % 0.18 to 0.25
0