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Annealed AISI 202 vs. Annealed AISI 205

Both annealed AISI 202 and annealed AISI 205 are iron alloys. Both are furnished in the annealed condition. They have a moderately high 94% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is annealed AISI 202 and the bottom bar is annealed AISI 205.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
45
Fatigue Strength, MPa 290
410
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
57
Shear Modulus, GPa 77
77
Shear Strength, MPa 490
560
Tensile Strength: Ultimate (UTS), MPa 700
800
Tensile Strength: Yield (Proof), MPa 310
450

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 910
880
Melting Completion (Liquidus), °C 1400
1380
Melting Onset (Solidus), °C 1360
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
18

Otherwise Unclassified Properties

Base Metal Price, % relative 13
11
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.8
2.6
Embodied Energy, MJ/kg 40
37
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 20
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
300
Resilience: Unit (Modulus of Resilience), kJ/m3 250
510
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 25
29
Strength to Weight: Bending, points 23
25
Thermal Shock Resistance, points 15
16

Alloy Composition

Carbon (C), % 0 to 0.15
0.12 to 0.25
Chromium (Cr), % 17 to 19
16.5 to 18.5
Iron (Fe), % 63.5 to 71.5
62.6 to 68.1
Manganese (Mn), % 7.5 to 10
14 to 15.5
Nickel (Ni), % 4.0 to 6.0
1.0 to 1.7
Nitrogen (N), % 0 to 0.25
0.32 to 0.4
Phosphorus (P), % 0 to 0.060
0 to 0.060
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030