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ASTM A369 Grade FP21 vs. EN 1.3533 Steel

Both ASTM A369 grade FP21 and EN 1.3533 steel are iron alloys. They have a very high 96% 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 FP21 and the bottom bar is EN 1.3533 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
210 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Tensile Strength: Ultimate (UTS), MPa 470
690 to 1420

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 470
440
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
47
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.8
1.8
Embodied Energy, MJ/kg 23
25
Embodied Water, L/kg 61
60

Common Calculations

PREN (Pitting Resistance) 6.2
2.1
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
24 to 50
Strength to Weight: Bending, points 17
22 to 36
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 14
20 to 42

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0.050 to 0.15
0.15 to 0.2
Chromium (Cr), % 2.7 to 3.4
1.3 to 1.6
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 94.3 to 96.2
92.9 to 94.9
Manganese (Mn), % 0.3 to 0.6
0.4 to 0.7
Molybdenum (Mo), % 0.8 to 1.1
0.15 to 0.25
Nickel (Ni), % 0
3.3 to 3.8
Oxygen (O), % 0
0 to 0.0020
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 0.030