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EN 1.4938 Stainless Steel vs. S24000 Stainless Steel

Both EN 1.4938 stainless steel and S24000 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, 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 S24000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16 to 17
39
Fatigue Strength, MPa 390 to 520
370
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 540 to 630
530
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
770
Tensile Strength: Yield (Proof), MPa 640 to 870
430

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 750
910
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 3.3
2.7
Embodied Energy, MJ/kg 47
39
Embodied Water, L/kg 110
150

Common Calculations

PREN (Pitting Resistance) 18
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
260
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
470
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 37
28
Strength to Weight: Bending, points 26 to 29
24
Thermal Shock Resistance, points 30 to 35
16

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.080
Chromium (Cr), % 11 to 12.5
17 to 19
Iron (Fe), % 80.5 to 84.8
61.5 to 69
Manganese (Mn), % 0.4 to 0.9
11.5 to 14.5
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 2.0 to 3.0
2.3 to 3.7
Nitrogen (N), % 0.020 to 0.040
0.2 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.060
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0.25 to 0.4
0