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SAE-AISI D4 Steel vs. SAE-AISI H41 Steel

Both SAE-AISI D4 steel and SAE-AISI H41 steel are iron alloys. They have 90% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D4 steel and the bottom bar is SAE-AISI H41 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 74
77
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
710 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1430
1560
Melting Onset (Solidus), °C 1380
1510
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 31
28
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
18
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 3.3
6.8
Embodied Energy, MJ/kg 49
97
Embodied Water, L/kg 100
97

Common Calculations

PREN (Pitting Resistance) 15
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 75
24 to 76
Strength to Weight: Bending, points 24 to 47
22 to 47
Thermal Diffusivity, mm2/s 8.3
7.7
Thermal Shock Resistance, points 23 to 63
20 to 64

Alloy Composition

Carbon (C), % 2.1 to 2.4
0.6 to 0.75
Chromium (Cr), % 11 to 13
3.5 to 4.0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.6 to 86.3
81.8 to 85
Manganese (Mn), % 0 to 0.6
0.15 to 0.4
Molybdenum (Mo), % 0.7 to 1.2
8.2 to 9.2
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.6
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0 to 1.0
1.0 to 1.3

Comparable Variants