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EN 1.6920 Steel vs. ASTM A369 Grade FP9

Both EN 1.6920 steel and ASTM A369 grade FP9 are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.6920 steel and the bottom bar is ASTM A369 grade FP9.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
20
Fatigue Strength, MPa 290
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 400
300
Tensile Strength: Ultimate (UTS), MPa 640
470
Tensile Strength: Yield (Proof), MPa 420
240

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 420
600
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
26
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
10

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
6.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.0
Embodied Energy, MJ/kg 23
28
Embodied Water, L/kg 52
87

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
80
Resilience: Unit (Modulus of Resilience), kJ/m3 470
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 10
6.9
Thermal Shock Resistance, points 19
13

Alloy Composition

Carbon (C), % 0 to 0.17
0 to 0.15
Chromium (Cr), % 0.5 to 1.0
8.0 to 10
Iron (Fe), % 95.7 to 98
87.1 to 90.3
Manganese (Mn), % 1.0 to 1.5
0.3 to 0.6
Molybdenum (Mo), % 0.2 to 0.35
0.9 to 1.1
Nickel (Ni), % 0.3 to 0.7
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0.5 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0.050 to 0.1
0