K93050 Alloy vs. SAE-AISI H43 Steel

Both K93050 alloy and SAE-AISI H43 steel are iron alloys. They have 63% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is K93050 alloy and the bottom bar is SAE-AISI H43 steel.

UNS K93050 Low Expansion Alloy SAE-AISI H43 (T20843) Molybdenum Hot-Work Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.3
Poisson's Ratio		0.29

Shear Modulus, GPa		72
Shear Modulus, GPa		77

Tensile Strength: Ultimate (UTS), MPa		500 to 680
Tensile Strength: Ultimate (UTS), MPa		710 to 2140

Thermal Properties

Latent Heat of Fusion, J/g		270
Latent Heat of Fusion, J/g		270

Melting Completion (Liquidus), °C		1430
Melting Completion (Liquidus), °C		1530

Melting Onset (Solidus), °C		1380
Melting Onset (Solidus), °C		1480

Specific Heat Capacity, J/kg-K		460
Specific Heat Capacity, J/kg-K		460

Thermal Expansion, µm/m-K		12
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Base Metal Price, % relative		26
Base Metal Price, % relative		14

Density, g/cm³		8.2
Density, g/cm³		7.9

Embodied Carbon, kg CO₂/kg material		4.7
Embodied Carbon, kg CO₂/kg material		8.2

Embodied Energy, MJ/kg		65
Embodied Energy, MJ/kg		120

Embodied Water, L/kg		120
Embodied Water, L/kg		100

Common Calculations

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		23
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		17 to 23
Strength to Weight: Axial, points		25 to 75

Strength to Weight: Bending, points		17 to 21
Strength to Weight: Bending, points		22 to 46

Thermal Shock Resistance, points		16 to 21
Thermal Shock Resistance, points		21 to 62

Alloy Composition

Carbon (C), %		0 to 0.15
Carbon (C), %		0.5 to 0.65

Chromium (Cr), %		0 to 0.25
Chromium (Cr), %		3.8 to 4.5

Cobalt (Co), %		0 to 0.5
Cobalt (Co), %		0

Iron (Fe), %		61.4 to 63.9
Iron (Fe), %		83.2 to 85.9

Manganese (Mn), %		0 to 1.0
Manganese (Mn), %		0.15 to 0.4

Molybdenum (Mo), %		0
Molybdenum (Mo), %		7.8 to 8.5

Nickel (Ni), %		36
Nickel (Ni), %		0

Phosphorus (P), %		0 to 0.020
Phosphorus (P), %		0 to 0.030

Selenium (Se), %		0.15 to 0.3
Selenium (Se), %		0

Silicon (Si), %		0 to 0.35
Silicon (Si), %		0.2 to 0.45

Sulfur (S), %		0 to 0.020
Sulfur (S), %		0 to 0.030

Vanadium (V), %		0
Vanadium (V), %		1.8 to 2.2

Comparable Variants

Annealed Condition