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Annealed AISI 302 vs. Annealed SAE-AISI H19

Both annealed AISI 302 and annealed SAE-AISI H19 are iron alloys. Both are furnished in the annealed condition. They have 77% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (13, 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 H19.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
220
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
720

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1420
1540
Melting Onset (Solidus), °C 1400
1490
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 16
29
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 15
22
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.0
7.5
Embodied Energy, MJ/kg 42
110
Embodied Water, L/kg 140
110

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
7.9
Thermal Shock Resistance, points 12
21

Alloy Composition

Carbon (C), % 0 to 0.15
0.32 to 0.45
Chromium (Cr), % 17 to 19
4.0 to 4.8
Cobalt (Co), % 0
4.0 to 4.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 67.9 to 75
81.4 to 85.5
Manganese (Mn), % 0 to 2.0
0.2 to 0.5
Molybdenum (Mo), % 0
0.3 to 0.55
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
0.2 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
3.8 to 4.5
Vanadium (V), % 0
1.8 to 2.2