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Hardened SAE-AISI H13 vs. Hardened SAE-AISI T15

Both hardened SAE-AISI H13 and hardened SAE-AISI T15 are iron alloys. Both are furnished in the hardened (H) condition. They have 78% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is hardened SAE-AISI H13 and the bottom bar is hardened SAE-AISI T15.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Rockwell C Hardness 56
69
Shear Modulus, GPa 74
76
Tensile Strength: Ultimate (UTS), MPa 1820
2240

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1460
1690
Melting Onset (Solidus), °C 1420
1640
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 29
21
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 6.0
43
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 4.3
16
Embodied Energy, MJ/kg 64
250
Embodied Water, L/kg 78
140

Common Calculations

PREN (Pitting Resistance) 9.9
27
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 65
71
Strength to Weight: Bending, points 43
43
Thermal Diffusivity, mm2/s 7.8
5.6
Thermal Shock Resistance, points 65
70

Alloy Composition

Carbon (C), % 0.32 to 0.45
1.5 to 1.6
Chromium (Cr), % 4.8 to 5.5
3.8 to 5.0
Cobalt (Co), % 0
4.8 to 5.3
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 88.8 to 92
67.5 to 73.5
Manganese (Mn), % 0.2 to 0.5
0.15 to 0.4
Molybdenum (Mo), % 1.1 to 1.8
0 to 1.0
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.8 to 1.2
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
11.8 to 13
Vanadium (V), % 0.8 to 1.2
4.5 to 5.3