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EN 1.4903 Stainless Steel vs. S42300 Stainless Steel

Both EN 1.4903 stainless steel and S42300 stainless steel are iron alloys. They have a moderately high 95% 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 1.4903 stainless steel and the bottom bar is S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 21
9.1
Fatigue Strength, MPa 320 to 330
440
Impact Strength: V-Notched Charpy, J 42 to 46
13
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 420
650
Tensile Strength: Ultimate (UTS), MPa 670 to 680
1100
Tensile Strength: Yield (Proof), MPa 500
850

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 380
380
Maximum Temperature: Mechanical, °C 650
750
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
25
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
4.5
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
5.2

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
3.2
Embodied Energy, MJ/kg 36
44
Embodied Water, L/kg 88
110

Common Calculations

PREN (Pitting Resistance) 13
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
93
Resilience: Unit (Modulus of Resilience), kJ/m3 650
1840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
39
Strength to Weight: Bending, points 22
30
Thermal Diffusivity, mm2/s 7.0
6.8
Thermal Shock Resistance, points 23
40

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.12
0.27 to 0.32
Chromium (Cr), % 8.0 to 9.5
11 to 12
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 87.1 to 90.5
82 to 85.1
Manganese (Mn), % 0.3 to 0.6
1.0 to 1.4
Molybdenum (Mo), % 0.85 to 1.1
2.5 to 3.0
Nickel (Ni), % 0 to 0.4
0 to 0.5
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0.18 to 0.25
0.2 to 0.3