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Annealed AISI 205 vs. Annealed SAE-AISI A3

Both annealed AISI 205 and annealed SAE-AISI A3 are iron alloys. Both are furnished in the annealed condition. They have 72% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is annealed AISI 205 and the bottom bar is annealed SAE-AISI A3.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
21
Fatigue Strength, MPa 410
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 560
440
Tensile Strength: Ultimate (UTS), MPa 800
700
Tensile Strength: Yield (Proof), MPa 450
340

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1380
1450
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
6.0
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.6
4.4
Embodied Energy, MJ/kg 37
67
Embodied Water, L/kg 150
78

Common Calculations

PREN (Pitting Resistance) 23
8.9
Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
120
Resilience: Unit (Modulus of Resilience), kJ/m3 510
300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 29
25
Strength to Weight: Bending, points 25
23
Thermal Shock Resistance, points 16
23

Alloy Composition

Carbon (C), % 0.12 to 0.25
1.2 to 1.3
Chromium (Cr), % 16.5 to 18.5
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.6 to 68.1
88.7 to 92
Manganese (Mn), % 14 to 15.5
0.4 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 1.0 to 1.7
0 to 0.3
Nitrogen (N), % 0.32 to 0.4
0
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0.8 to 1.4