EN 1.7149 Steel vs. ASTM Grade HP Steel

Both EN 1.7149 steel and ASTM grade HP steel are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.7149 steel and the bottom bar is ASTM grade HP steel.

EN 1.7149 (20MnCrS5) Chromium Steel ASTM Grade HP (26Cr-35Ni, N08705) Cast Stainless Steel

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness		150 to 180
Brinell Hardness		140

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

Poisson's Ratio		0.29
Poisson's Ratio		0.28

Shear Modulus, GPa		73
Shear Modulus, GPa		78

Tensile Strength: Ultimate (UTS), MPa		500 to 1460
Tensile Strength: Ultimate (UTS), MPa		490

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		320

Maximum Temperature: Mechanical, °C		420
Maximum Temperature: Mechanical, °C		1100

Melting Completion (Liquidus), °C		1460
Melting Completion (Liquidus), °C		1370

Melting Onset (Solidus), °C		1420
Melting Onset (Solidus), °C		1330

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		480

Thermal Conductivity, W/m-K		46
Thermal Conductivity, W/m-K		12

Thermal Expansion, µm/m-K		13
Thermal Expansion, µm/m-K		16

Otherwise Unclassified Properties

Base Metal Price, % relative		2.3
Base Metal Price, % relative		34

Density, g/cm³		7.8
Density, g/cm³		7.9

Embodied Carbon, kg CO₂/kg material		1.5
Embodied Carbon, kg CO₂/kg material		5.8

Embodied Energy, MJ/kg		19
Embodied Energy, MJ/kg		82

Embodied Water, L/kg		52
Embodied Water, L/kg		220

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		25

Strength to Weight: Axial, points		18 to 52
Strength to Weight: Axial, points		17

Strength to Weight: Bending, points		18 to 36
Strength to Weight: Bending, points		17

Thermal Diffusivity, mm²/s		12
Thermal Diffusivity, mm²/s		3.2

Thermal Shock Resistance, points		15 to 42
Thermal Shock Resistance, points		11

Alloy Composition

Carbon (C), %		0.17 to 0.22
Carbon (C), %		0.35 to 0.75

Chromium (Cr), %		1.0 to 1.3
Chromium (Cr), %		24 to 28

Copper (Cu), %		0 to 0.25
Copper (Cu), %		0

Iron (Fe), %		96.5 to 97.7
Iron (Fe), %		29.2 to 42.7

Manganese (Mn), %		1.1 to 1.4
Manganese (Mn), %		0 to 2.0

Molybdenum (Mo), %		0
Molybdenum (Mo), %		0 to 0.5

Nickel (Ni), %		0
Nickel (Ni), %		33 to 37

Phosphorus (P), %		0 to 0.025
Phosphorus (P), %		0 to 0.040

Silicon (Si), %		0 to 0.3
Silicon (Si), %		0 to 2.5

Sulfur (S), %		0.020 to 0.040
Sulfur (S), %		0 to 0.040