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EN 1.8503 Steel vs. ASTM A369 Grade FP21

Both EN 1.8503 steel and ASTM A369 grade FP21 are iron alloys. They have a very high 98% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.8503 steel and the bottom bar is ASTM A369 grade FP21.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
20
Fatigue Strength, MPa 600
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 610
300
Tensile Strength: Ultimate (UTS), MPa 1000
470
Tensile Strength: Yield (Proof), MPa 910
240

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 3.3
4.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.3
1.8
Embodied Energy, MJ/kg 33
23
Embodied Water, L/kg 57
61

Common Calculations

PREN (Pitting Resistance) 3.7
6.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
80
Resilience: Unit (Modulus of Resilience), kJ/m3 2200
150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 35
17
Strength to Weight: Bending, points 28
17
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 29
14

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0.16 to 0.24
0.050 to 0.15
Chromium (Cr), % 1.2 to 1.5
2.7 to 3.4
Iron (Fe), % 95.8 to 97.5
94.3 to 96.2
Manganese (Mn), % 0.4 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0.65 to 0.8
0.8 to 1.1
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.035
0 to 0.025
Vanadium (V), % 0.25 to 0.35
0