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SAE-AISI H41 Steel vs. SAE-AISI H43 Steel

Both SAE-AISI H41 steel and SAE-AISI H43 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is SAE-AISI H41 steel and the bottom bar is SAE-AISI H43 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 710 to 2210
710 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1560
1530
Melting Onset (Solidus), °C 1510
1480
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 28
30
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 18
14
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 6.8
8.2
Embodied Energy, MJ/kg 97
120
Embodied Water, L/kg 97
100

Common Calculations

PREN (Pitting Resistance) 35
31
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 76
25 to 75
Strength to Weight: Bending, points 22 to 47
22 to 46
Thermal Diffusivity, mm2/s 7.7
8.3
Thermal Shock Resistance, points 20 to 64
21 to 62

Alloy Composition

Carbon (C), % 0.6 to 0.75
0.5 to 0.65
Chromium (Cr), % 3.5 to 4.0
3.8 to 4.5
Iron (Fe), % 81.8 to 85
83.2 to 85.9
Manganese (Mn), % 0.15 to 0.4
0.15 to 0.4
Molybdenum (Mo), % 8.2 to 9.2
7.8 to 8.5
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.0 to 1.3
1.8 to 2.2

Comparable Variants