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EN 1.7767 Steel vs. ASTM Grade HP Steel

Both EN 1.7767 steel and ASTM grade HP steel are iron alloys. They have 40% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.7767 steel and the bottom bar is ASTM grade HP steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
5.1
Fatigue Strength, MPa 320 to 340
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
78
Tensile Strength: Ultimate (UTS), MPa 670 to 690
490
Tensile Strength: Yield (Proof), MPa 460 to 500
260

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 480
1100
Melting Completion (Liquidus), °C 1470
1370
Melting Onset (Solidus), °C 1430
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
12
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
34
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.4
5.8
Embodied Energy, MJ/kg 33
82
Embodied Water, L/kg 64
220

Common Calculations

PREN (Pitting Resistance) 6.4
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
21
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 650
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
17
Strength to Weight: Bending, points 22
17
Thermal Diffusivity, mm2/s 11
3.2
Thermal Shock Resistance, points 19 to 20
11

Alloy Composition

Carbon (C), % 0.1 to 0.15
0.35 to 0.75
Chromium (Cr), % 2.8 to 3.3
24 to 28
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 93.8 to 95.8
29.2 to 42.7
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
0 to 0.5
Nickel (Ni), % 0 to 0.25
33 to 37
Niobium (Nb), % 0 to 0.070
0
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 2.5
Sulfur (S), % 0 to 0.0050
0 to 0.040
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0.2 to 0.3
0