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ASTM Grade HP Steel vs. EN 1.8874 Steel

Both ASTM grade HP steel and EN 1.8874 steel are iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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 1.8874 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 5.1
19
Fatigue Strength, MPa 130
340
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 490
660
Tensile Strength: Yield (Proof), MPa 260
500

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1100
420
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
39
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 34
3.2
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 5.8
1.8
Embodied Energy, MJ/kg 82
24
Embodied Water, L/kg 220
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
120
Resilience: Unit (Modulus of Resilience), kJ/m3 170
670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
23
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 3.2
10
Thermal Shock Resistance, points 11
19

Alloy Composition

Boron (B), % 0
0 to 0.0050
Carbon (C), % 0.35 to 0.75
0 to 0.18
Chromium (Cr), % 24 to 28
0 to 1.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 29.2 to 42.7
93.6 to 100
Manganese (Mn), % 0 to 2.0
0 to 1.7
Molybdenum (Mo), % 0 to 0.5
0 to 0.7
Nickel (Ni), % 33 to 37
0 to 1.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.5
0 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.080
Zirconium (Zr), % 0
0 to 0.15