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EN 1.7383 Steel vs. ASTM A369 Grade FP21

Both EN 1.7383 steel and ASTM A369 grade FP21 are iron alloys. Their average alloy composition is basically identical. 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 1.7383 steel and the bottom bar is ASTM A369 grade FP21.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 180
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20 to 23
20
Fatigue Strength, MPa 210 to 270
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
74
Shear Strength, MPa 350 to 380
300
Tensile Strength: Ultimate (UTS), MPa 560 to 610
470
Tensile Strength: Yield (Proof), MPa 300 to 400
240

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Maximum Temperature: Mechanical, °C 460
470
Melting Completion (Liquidus), °C 1470
1470
Melting Onset (Solidus), °C 1430
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
4.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.8
Embodied Energy, MJ/kg 23
23
Embodied Water, L/kg 59
61

Common Calculations

PREN (Pitting Resistance) 5.6
6.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
80
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 420
150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 22
17
Strength to Weight: Bending, points 19 to 20
17
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 16 to 18
14

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.15
0.050 to 0.15
Chromium (Cr), % 2.0 to 2.5
2.7 to 3.4
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 94.3 to 96.6
94.3 to 96.2
Manganese (Mn), % 0.4 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0.9 to 1.1
0.8 to 1.1
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.025