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S82121 Stainless Steel vs. EN 1.4034 Stainless Steel

Both S82121 stainless steel and EN 1.4034 stainless steel are iron alloys. They have 86% 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 1.4034 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
11 to 14
Fatigue Strength, MPa 370
230 to 400
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
76
Shear Strength, MPa 470
420 to 540
Tensile Strength: Ultimate (UTS), MPa 730
690 to 900
Tensile Strength: Yield (Proof), MPa 510
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 430
390
Maximum Temperature: Mechanical, °C 1020
770
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
30
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 14
7.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.8
2.0
Embodied Energy, MJ/kg 40
27
Embodied Water, L/kg 150
100

Common Calculations

PREN (Pitting Resistance) 28
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
81 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 660
400 to 1370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
25 to 32
Strength to Weight: Bending, points 23
22 to 27
Thermal Diffusivity, mm2/s 4.0
8.1
Thermal Shock Resistance, points 20
24 to 32

Alloy Composition

Carbon (C), % 0 to 0.035
0.43 to 0.5
Chromium (Cr), % 21 to 23
12.5 to 14.5
Copper (Cu), % 0.2 to 1.2
0
Iron (Fe), % 66.7 to 75.4
83 to 87.1
Manganese (Mn), % 1.0 to 2.5
0 to 1.0
Molybdenum (Mo), % 0.3 to 1.3
0
Nickel (Ni), % 2.0 to 4.0
0
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015