MakeItFrom.com
Menu (ESC)

Annealed SAE-AISI A2 vs. Annealed SAE-AISI A3

Both annealed SAE-AISI A2 and annealed SAE-AISI A3 are iron alloys. Both are furnished in the annealed condition. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is annealed SAE-AISI A2 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 190
190
Elongation at Break, % 21
21
Fatigue Strength, MPa 240
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 450
440
Tensile Strength: Ultimate (UTS), MPa 710
700
Tensile Strength: Yield (Proof), MPa 350
340

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 38
37
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
9.7

Otherwise Unclassified Properties

Base Metal Price, % relative 5.5
6.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
4.4
Embodied Energy, MJ/kg 38
67
Embodied Water, L/kg 73
78

Common Calculations

PREN (Pitting Resistance) 8.9
8.9
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 310
300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
25
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 10
10
Thermal Shock Resistance, points 25
23

Alloy Composition

Carbon (C), % 1.0 to 1.1
1.2 to 1.3
Chromium (Cr), % 4.8 to 5.5
4.8 to 5.5
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 89.4 to 93.3
88.7 to 92
Manganese (Mn), % 0 to 1.0
0.4 to 0.6
Molybdenum (Mo), % 0.9 to 1.4
0.9 to 1.4
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.15 to 0.5
0.8 to 1.4