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ASTM A369 Grade FP12 vs. EN 1.3551 Steel

Both ASTM A369 grade FP12 and EN 1.3551 steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 26 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 A369 grade FP12 and the bottom bar is EN 1.3551 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 470
720

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 430
530
Melting Completion (Liquidus), °C 1470
1490
Melting Onset (Solidus), °C 1430
1450
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 45
36
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
8.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
9.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
4.9
Embodied Energy, MJ/kg 21
71
Embodied Water, L/kg 52
82

Common Calculations

PREN (Pitting Resistance) 2.8
18
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 17
23
Thermal Diffusivity, mm2/s 12
9.8
Thermal Shock Resistance, points 14
21

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.77 to 0.85
Chromium (Cr), % 0.8 to 1.3
3.9 to 4.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 96.8 to 98.4
88.8 to 91.1
Manganese (Mn), % 0.3 to 0.61
0.15 to 0.35
Molybdenum (Mo), % 0.44 to 0.65
4.0 to 4.5
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.015
Tungsten (W), % 0
0 to 0.25
Vanadium (V), % 0
0.9 to 1.1