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EN 1.4547 Stainless Steel vs. ASTM A369 Grade FP9

Both EN 1.4547 stainless steel and ASTM A369 grade FP9 are iron alloys. They have 64% of their average alloy composition in common. There are 32 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 EN 1.4547 stainless steel and the bottom bar is ASTM A369 grade FP9.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
20
Fatigue Strength, MPa 290
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
75
Shear Strength, MPa 510
300
Tensile Strength: Ultimate (UTS), MPa 750
470
Tensile Strength: Yield (Proof), MPa 340
240

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Mechanical, °C 1090
600
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 14
26
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
10

Otherwise Unclassified Properties

Base Metal Price, % relative 28
6.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.6
2.0
Embodied Energy, MJ/kg 75
28
Embodied Water, L/kg 190
87

Common Calculations

PREN (Pitting Resistance) 45
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
80
Resilience: Unit (Modulus of Resilience), kJ/m3 290
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
17
Strength to Weight: Bending, points 23
17
Thermal Diffusivity, mm2/s 3.8
6.9
Thermal Shock Resistance, points 16
13

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.15
Chromium (Cr), % 19.5 to 20.5
8.0 to 10
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 51 to 56.3
87.1 to 90.3
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 6.0 to 7.0
0.9 to 1.1
Nickel (Ni), % 17.5 to 18.5
0
Nitrogen (N), % 0.18 to 0.25
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.7
0.5 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030