ASTM A36 Carbon Steel vs. SAE-AISI H41 Steel

Both ASTM A36 carbon steel and SAE-AISI H41 steel are iron alloys. They have 84% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is ASTM A36 carbon steel and the bottom bar is SAE-AISI H41 steel.

ASTM A36 (SS400, S275) Structural Carbon Steel SAE-AISI H41 (T20841) 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		0.29
Poisson's Ratio		0.29

Shear Modulus, GPa		73
Shear Modulus, GPa		77

Tensile Strength: Ultimate (UTS), MPa		480
Tensile Strength: Ultimate (UTS), MPa		710 to 2210

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		270

Melting Completion (Liquidus), °C		1460
Melting Completion (Liquidus), °C		1560

Melting Onset (Solidus), °C		1420
Melting Onset (Solidus), °C		1510

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		450

Thermal Conductivity, W/m-K		50
Thermal Conductivity, W/m-K		28

Thermal Expansion, µm/m-K		11
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Base Metal Price, % relative		1.8
Base Metal Price, % relative		18

Density, g/cm³		7.9
Density, g/cm³		8.1

Embodied Carbon, kg CO₂/kg material		1.4
Embodied Carbon, kg CO₂/kg material		6.8

Embodied Energy, MJ/kg		18
Embodied Energy, MJ/kg		97

Embodied Water, L/kg		44
Embodied Water, L/kg		97

Common Calculations

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

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

Strength to Weight: Axial, points		17
Strength to Weight: Axial, points		24 to 76

Strength to Weight: Bending, points		17
Strength to Weight: Bending, points		22 to 47

Thermal Diffusivity, mm²/s		14
Thermal Diffusivity, mm²/s		7.7

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		20 to 64

Alloy Composition

Carbon (C), %		0 to 0.26
Carbon (C), %		0.6 to 0.75

Chromium (Cr), %		0
Chromium (Cr), %		3.5 to 4.0

Iron (Fe), %		99.25 to 100
Iron (Fe), %		81.8 to 85

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

Molybdenum (Mo), %		0
Molybdenum (Mo), %		8.2 to 9.2

Phosphorus (P), %		0 to 0.040
Phosphorus (P), %		0 to 0.030

Silicon (Si), %		0 to 0.4
Silicon (Si), %		0.2 to 0.45

Sulfur (S), %		0 to 0.050
Sulfur (S), %		0 to 0.030

Tungsten (W), %		0
Tungsten (W), %		1.4 to 2.1

Vanadium (V), %		0
Vanadium (V), %		1.0 to 1.3