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ASTM Grade HP Steel vs. EN 1.6771 Steel

Both ASTM grade HP steel and EN 1.6771 steel are iron alloys. They have 42% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HP steel and the bottom bar is EN 1.6771 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
280 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 5.1
8.0 to 8.7
Fatigue Strength, MPa 130
440 to 680
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 490
930 to 1180
Tensile Strength: Yield (Proof), MPa 260
740 to 1140

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1100
440
Melting Completion (Liquidus), °C 1370
1460
Melting Onset (Solidus), °C 1330
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
46
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 34
5.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 5.8
1.9
Embodied Energy, MJ/kg 82
25
Embodied Water, L/kg 220
58

Common Calculations

PREN (Pitting Resistance) 27
2.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
75 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 170
1460 to 3450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
33 to 41
Strength to Weight: Bending, points 17
27 to 31
Thermal Diffusivity, mm2/s 3.2
13
Thermal Shock Resistance, points 11
27 to 35

Alloy Composition

Carbon (C), % 0.35 to 0.75
0.27 to 0.33
Chromium (Cr), % 24 to 28
0.8 to 1.2
Iron (Fe), % 29.2 to 42.7
92.2 to 95
Manganese (Mn), % 0 to 2.0
0.6 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.3 to 0.6
Nickel (Ni), % 33 to 37
3.0 to 4.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.5
0 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.020