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S82121 Stainless Steel vs. EN 1.4857 Stainless Steel

Both S82121 stainless steel and EN 1.4857 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S82121 stainless steel and the bottom bar is EN 1.4857 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
6.7
Fatigue Strength, MPa 370
120
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 730
500
Tensile Strength: Yield (Proof), MPa 510
250

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Corrosion, °C 430
440
Maximum Temperature: Mechanical, °C 1020
1100
Melting Completion (Liquidus), °C 1430
1370
Melting Onset (Solidus), °C 1380
1320
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 14
34
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.8
5.7
Embodied Energy, MJ/kg 40
81
Embodied Water, L/kg 150
220

Common Calculations

PREN (Pitting Resistance) 28
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
28
Resilience: Unit (Modulus of Resilience), kJ/m3 660
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 4.0
3.4
Thermal Shock Resistance, points 20
11

Alloy Composition

Carbon (C), % 0 to 0.035
0.3 to 0.5
Chromium (Cr), % 21 to 23
24 to 27
Copper (Cu), % 0.2 to 1.2
0
Iron (Fe), % 66.7 to 75.4
31.4 to 41.7
Manganese (Mn), % 1.0 to 2.5
0 to 2.0
Molybdenum (Mo), % 0.3 to 1.3
0 to 0.5
Nickel (Ni), % 2.0 to 4.0
33 to 36
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.010
0 to 0.030