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ASTM A369 Grade FP9 vs. EN 1.4510 Stainless Steel

Both ASTM A369 grade FP9 and EN 1.4510 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 91% 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 FP9 and the bottom bar is EN 1.4510 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
26
Fatigue Strength, MPa 160
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 300
330
Tensile Strength: Ultimate (UTS), MPa 470
510
Tensile Strength: Yield (Proof), MPa 240
270

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 600
870
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 26
25
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
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
8.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.2
Embodied Energy, MJ/kg 28
32
Embodied Water, L/kg 87
120

Common Calculations

PREN (Pitting Resistance) 12
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
18
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 6.9
6.7
Thermal Shock Resistance, points 13
17

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.050
Chromium (Cr), % 8.0 to 10
16 to 18
Iron (Fe), % 87.1 to 90.3
79.1 to 83.9
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.5 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.8