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EN 1.4024 Stainless Steel vs. S31730 Stainless Steel

Both EN 1.4024 stainless steel and S31730 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4024 stainless steel and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 15 to 22
40
Fatigue Strength, MPa 220 to 300
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 370 to 460
370
Tensile Strength: Ultimate (UTS), MPa 590 to 750
540
Tensile Strength: Yield (Proof), MPa 330 to 510
200

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 760
990
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
24
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 1.9
4.6
Embodied Energy, MJ/kg 27
63
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 13
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 110
170
Resilience: Unit (Modulus of Resilience), kJ/m3 280 to 660
99
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 27
19
Strength to Weight: Bending, points 20 to 24
18
Thermal Shock Resistance, points 21 to 26
12

Alloy Composition

Carbon (C), % 0.12 to 0.17
0 to 0.030
Chromium (Cr), % 12 to 14
17 to 19
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 83.8 to 87.9
52.4 to 61
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
15 to 16.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010