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ASTM A369 Grade FP21 vs. EN 1.3519 Steel

Both ASTM A369 grade FP21 and EN 1.3519 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP21 and the bottom bar is EN 1.3519 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
72
Tensile Strength: Ultimate (UTS), MPa 470
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Maximum Temperature: Mechanical, °C 470
430
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 41
43
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.5
Embodied Energy, MJ/kg 23
21
Embodied Water, L/kg 61
55

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
22 to 26
Strength to Weight: Bending, points 17
21 to 23
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 14
18 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0.050 to 0.15
0.93 to 1.1
Chromium (Cr), % 2.7 to 3.4
1.4 to 1.7
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 94.3 to 96.2
95.4 to 96.8
Manganese (Mn), % 0.3 to 0.6
1.4 to 1.7
Molybdenum (Mo), % 0.8 to 1.1
0 to 0.1
Oxygen (O), % 0
0 to 0.0015
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.5
0.45 to 0.75
Sulfur (S), % 0 to 0.025
0 to 0.030