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ASTM A369 Grade FP9 vs. EN 1.4923 Stainless Steel

Both ASTM A369 grade FP9 and EN 1.4923 stainless steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP9 and the bottom bar is EN 1.4923 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
12 to 21
Fatigue Strength, MPa 160
300 to 440
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 300
540 to 590
Tensile Strength: Ultimate (UTS), MPa 470
870 to 980
Tensile Strength: Yield (Proof), MPa 240
470 to 780

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 600
740
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 26
24
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 10
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
8.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.9
Embodied Energy, MJ/kg 28
41
Embodied Water, L/kg 87
100

Common Calculations

PREN (Pitting Resistance) 12
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 140
570 to 1580
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
31 to 35
Strength to Weight: Bending, points 17
26 to 28
Thermal Diffusivity, mm2/s 6.9
6.5
Thermal Shock Resistance, points 13
30 to 34

Alloy Composition

Carbon (C), % 0 to 0.15
0.18 to 0.24
Chromium (Cr), % 8.0 to 10
11 to 12.5
Iron (Fe), % 87.1 to 90.3
83.5 to 87.1
Manganese (Mn), % 0.3 to 0.6
0.4 to 0.9
Molybdenum (Mo), % 0.9 to 1.1
0.8 to 1.2
Nickel (Ni), % 0
0.3 to 0.8
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.5 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0
0.25 to 0.35