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ASTM A369 Grade FP5 vs. EN 1.4931 Steel

Both ASTM A369 grade FP5 and EN 1.4931 steel are iron alloys. They have a moderately high 91% 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 ASTM A369 grade FP5 and the bottom bar is EN 1.4931 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
240
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
17
Fatigue Strength, MPa 160
410
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Tensile Strength: Ultimate (UTS), MPa 470
810
Tensile Strength: Yield (Proof), MPa 240
620

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 510
600
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
24
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
9.8
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
11

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
8.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.9
Embodied Energy, MJ/kg 23
42
Embodied Water, L/kg 69
100

Common Calculations

PREN (Pitting Resistance) 6.8
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
130
Resilience: Unit (Modulus of Resilience), kJ/m3 140
970
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
29
Strength to Weight: Bending, points 17
25
Thermal Diffusivity, mm2/s 11
6.5
Thermal Shock Resistance, points 13
22

Alloy Composition

Carbon (C), % 0 to 0.15
0.2 to 0.26
Chromium (Cr), % 4.0 to 6.0
11.3 to 12.2
Iron (Fe), % 92.1 to 95.3
83.2 to 86.8
Manganese (Mn), % 0.3 to 0.6
0.5 to 0.8
Molybdenum (Mo), % 0.45 to 0.65
1.0 to 1.2
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.020
Tungsten (W), % 0
0 to 0.5
Vanadium (V), % 0
0.25 to 0.35