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EN 1.4588 Stainless Steel vs. S82121 Stainless Steel

Both EN 1.4588 stainless steel and S82121 stainless steel are iron alloys. They have 72% 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 1.4588 stainless steel and the bottom bar is S82121 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
28
Fatigue Strength, MPa 190
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 540
730
Tensile Strength: Yield (Proof), MPa 240
510

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 1100
1020
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 33
14
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 6.2
2.8
Embodied Energy, MJ/kg 84
40
Embodied Water, L/kg 200
150

Common Calculations

PREN (Pitting Resistance) 44
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
180
Resilience: Unit (Modulus of Resilience), kJ/m3 140
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
26
Strength to Weight: Bending, points 18
23
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 11
20

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.035
Chromium (Cr), % 19 to 21
21 to 23
Copper (Cu), % 0.5 to 1.5
0.2 to 1.2
Iron (Fe), % 41.2 to 50.4
66.7 to 75.4
Manganese (Mn), % 0 to 2.0
1.0 to 2.5
Molybdenum (Mo), % 6.0 to 7.0
0.3 to 1.3
Nickel (Ni), % 24 to 26
2.0 to 4.0
Nitrogen (N), % 0.1 to 0.25
0.15 to 0.25
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.010