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EN 1.4971 Stainless Steel vs. EN 1.4024 Stainless Steel

Both EN 1.4971 stainless steel and EN 1.4024 stainless steel are iron alloys. They have 45% of their average alloy composition in common. There are 30 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 1.4971 stainless steel and the bottom bar is EN 1.4024 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
15 to 22
Fatigue Strength, MPa 270
220 to 300
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
76
Shear Strength, MPa 530
370 to 460
Tensile Strength: Ultimate (UTS), MPa 800
590 to 750
Tensile Strength: Yield (Proof), MPa 340
330 to 510

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 570
390
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
30
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Base Metal Price, % relative 70
7.0
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 7.6
1.9
Embodied Energy, MJ/kg 110
27
Embodied Water, L/kg 300
100

Common Calculations

PREN (Pitting Resistance) 38
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
98 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 280
280 to 660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
21 to 27
Strength to Weight: Bending, points 23
20 to 24
Thermal Diffusivity, mm2/s 3.4
8.1
Thermal Shock Resistance, points 19
21 to 26

Alloy Composition

Carbon (C), % 0.080 to 0.16
0.12 to 0.17
Chromium (Cr), % 20 to 22.5
12 to 14
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 37.1
83.8 to 87.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 2.0 to 3.0
0