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Annealed AISI 303 vs. Full-hard AISI 301

Both annealed AISI 303 and full-hard AISI 301 are iron alloys. They have a very high 97% of their average alloy composition in common. There are 34 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 AISI 303 and the bottom bar is full-hard AISI 301.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
440
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 51
7.4
Fatigue Strength, MPa 230
540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 430
860
Tensile Strength: Ultimate (UTS), MPa 600
1460
Tensile Strength: Yield (Proof), MPa 230
1080

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 930
840
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
13
Calomel Potential, mV -80
-70
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 42
39
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 18
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
99
Resilience: Unit (Modulus of Resilience), kJ/m3 140
2970
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
52
Strength to Weight: Bending, points 20
37
Thermal Diffusivity, mm2/s 4.4
4.2
Thermal Shock Resistance, points 13
31

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.15
Chromium (Cr), % 17 to 19
16 to 18
Iron (Fe), % 67.3 to 74.9
70.7 to 78
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 8.0 to 10
6.0 to 8.0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.2
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0.15 to 0.35
0 to 0.030