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S82121 Stainless Steel vs. EN 1.7335 Steel

Both S82121 stainless steel and EN 1.7335 steel are iron alloys. They have 74% 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 S82121 stainless steel and the bottom bar is EN 1.7335 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
150 to 160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
21 to 22
Fatigue Strength, MPa 370
200 to 220
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 470
310 to 330
Tensile Strength: Ultimate (UTS), MPa 730
500 to 520
Tensile Strength: Yield (Proof), MPa 510
280 to 310

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1020
430
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.8
1.6
Embodied Energy, MJ/kg 40
21
Embodied Water, L/kg 150
52

Common Calculations

PREN (Pitting Resistance) 28
2.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
91 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 660
210 to 260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 20
15

Alloy Composition

Carbon (C), % 0 to 0.035
0.080 to 0.18
Chromium (Cr), % 21 to 23
0.7 to 1.2
Copper (Cu), % 0.2 to 1.2
0 to 0.3
Iron (Fe), % 66.7 to 75.4
96.4 to 98.4
Manganese (Mn), % 1.0 to 2.5
0.4 to 1.0
Molybdenum (Mo), % 0.3 to 1.3
0.4 to 0.6
Nickel (Ni), % 2.0 to 4.0
0
Nitrogen (N), % 0.15 to 0.25
0 to 0.012
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.010