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Annealed AISI 302 vs. Annealed SAE-AISI H14

Both annealed AISI 302 and annealed SAE-AISI H14 are iron alloys. Both are furnished in the annealed condition. They have 78% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is annealed AISI 302 and the bottom bar is annealed SAE-AISI H14.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 580
710

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1420
1530
Melting Onset (Solidus), °C 1400
1490
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 16
35
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
10

Otherwise Unclassified Properties

Base Metal Price, % relative 15
15
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 42
39
Embodied Water, L/kg 140
73

Common Calculations

PREN (Pitting Resistance) 19
13
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 4.4
9.3
Thermal Shock Resistance, points 12
24

Alloy Composition

Carbon (C), % 0 to 0.15
0.35 to 0.45
Chromium (Cr), % 17 to 19
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 67.9 to 75
86.5 to 89.9
Manganese (Mn), % 0 to 2.0
0.2 to 0.5
Nickel (Ni), % 8.0 to 10
0 to 0.3
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0.8 to 1.2
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
4.0 to 5.3