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ASTM A369 Grade FPA vs. EN 1.4724 Stainless Steel

Both ASTM A369 grade FPA and EN 1.4724 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FPA and the bottom bar is EN 1.4724 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 27
16
Fatigue Strength, MPa 180
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 240
340
Tensile Strength: Ultimate (UTS), MPa 380
550
Tensile Strength: Yield (Proof), MPa 240
280

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
850
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 52
21
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.0
Embodied Energy, MJ/kg 18
28
Embodied Water, L/kg 46
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
73
Resilience: Unit (Modulus of Resilience), kJ/m3 150
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13
20
Strength to Weight: Bending, points 15
19
Thermal Diffusivity, mm2/s 14
5.6
Thermal Shock Resistance, points 12
19

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.2
Carbon (C), % 0 to 0.25
0 to 0.12
Chromium (Cr), % 0
12 to 14
Iron (Fe), % 98.3 to 99.63
82.2 to 86.6
Manganese (Mn), % 0.27 to 0.93
0 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.1 to 0.5
0.7 to 1.4
Sulfur (S), % 0 to 0.035
0 to 0.015