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EN 1.4580 Stainless Steel vs. ASTM A369 Grade FP9

Both EN 1.4580 stainless steel and ASTM A369 grade FP9 are iron alloys. They have 77% 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 1.4580 stainless steel and the bottom bar is ASTM A369 grade FP9.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
20
Fatigue Strength, MPa 210
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
75
Shear Strength, MPa 430
300
Tensile Strength: Ultimate (UTS), MPa 620
470
Tensile Strength: Yield (Proof), MPa 250
240

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 950
600
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
26
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
10

Otherwise Unclassified Properties

Base Metal Price, % relative 22
6.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.3
2.0
Embodied Energy, MJ/kg 60
28
Embodied Water, L/kg 150
87

Common Calculations

PREN (Pitting Resistance) 25
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
80
Resilience: Unit (Modulus of Resilience), kJ/m3 150
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 4.0
6.9
Thermal Shock Resistance, points 14
13

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 16.5 to 18.5
8.0 to 10
Iron (Fe), % 61.4 to 71
87.1 to 90.3
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Molybdenum (Mo), % 2.0 to 2.5
0.9 to 1.1
Nickel (Ni), % 10.5 to 13.5
0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0.5 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030