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AISI 205 Stainless Steel vs. SAE-AISI 4161 Steel

Both AISI 205 stainless steel and SAE-AISI 4161 steel are iron alloys. They have 67% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 205 stainless steel and the bottom bar is SAE-AISI 4161 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 440
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11 to 51
20
Fatigue Strength, MPa 410 to 640
290
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 560 to 850
420
Tensile Strength: Ultimate (UTS), MPa 800 to 1430
680
Tensile Strength: Yield (Proof), MPa 450 to 1100
410

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 880
420
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 18
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.5
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.5
Embodied Energy, MJ/kg 37
20
Embodied Water, L/kg 150
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 430
120
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 3060
460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 29 to 52
24
Strength to Weight: Bending, points 25 to 37
22
Thermal Shock Resistance, points 16 to 29
22

Alloy Composition

Carbon (C), % 0.12 to 0.25
0.56 to 0.64
Chromium (Cr), % 16.5 to 18.5
0.7 to 0.9
Iron (Fe), % 62.6 to 68.1
96.7 to 97.6
Manganese (Mn), % 14 to 15.5
0.75 to 1.0
Molybdenum (Mo), % 0
0.25 to 0.35
Nickel (Ni), % 1.0 to 1.7
0
Nitrogen (N), % 0.32 to 0.4
0
Phosphorus (P), % 0 to 0.060
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040