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EN 1.4938 Stainless Steel vs. S42300 Stainless Steel

Both EN 1.4938 stainless steel and S42300 stainless steel are iron alloys. They have a very high 97% 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 1.4938 stainless steel and the bottom bar is S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16 to 17
9.1
Fatigue Strength, MPa 390 to 520
440
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 540 to 630
650
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
1100
Tensile Strength: Yield (Proof), MPa 640 to 870
850

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 390
380
Maximum Temperature: Mechanical, °C 750
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 30
25
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
4.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
5.2

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
3.2
Embodied Energy, MJ/kg 47
44
Embodied Water, L/kg 110
110

Common Calculations

PREN (Pitting Resistance) 18
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
93
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
1840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 37
39
Strength to Weight: Bending, points 26 to 29
30
Thermal Diffusivity, mm2/s 8.1
6.8
Thermal Shock Resistance, points 30 to 35
40

Alloy Composition

Carbon (C), % 0.080 to 0.15
0.27 to 0.32
Chromium (Cr), % 11 to 12.5
11 to 12
Iron (Fe), % 80.5 to 84.8
82 to 85.1
Manganese (Mn), % 0.4 to 0.9
1.0 to 1.4
Molybdenum (Mo), % 1.5 to 2.0
2.5 to 3.0
Nickel (Ni), % 2.0 to 3.0
0 to 0.5
Nitrogen (N), % 0.020 to 0.040
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), % 0.25 to 0.4
0.2 to 0.3