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ASTM A369 Grade FP1 vs. EN 1.4558 Stainless Steel

Both ASTM A369 grade FP1 and EN 1.4558 stainless steel are iron alloys. They have 44% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP1 and the bottom bar is EN 1.4558 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
39
Fatigue Strength, MPa 160
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 270
350
Tensile Strength: Ultimate (UTS), MPa 430
510
Tensile Strength: Yield (Proof), MPa 240
200

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1470
1400
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
31
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.5
5.5
Embodied Energy, MJ/kg 20
77
Embodied Water, L/kg 47
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75
160
Resilience: Unit (Modulus of Resilience), kJ/m3 150
100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15
18
Strength to Weight: Bending, points 16
18
Thermal Diffusivity, mm2/s 13
3.1
Thermal Shock Resistance, points 13
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.45
Carbon (C), % 0.1 to 0.2
0 to 0.030
Chromium (Cr), % 0
20 to 23
Iron (Fe), % 97.8 to 99.06
39.2 to 47.9
Manganese (Mn), % 0.3 to 0.8
0 to 1.0
Molybdenum (Mo), % 0.44 to 0.65
0
Nickel (Ni), % 0
32 to 35
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0.1 to 0.5
0 to 0.7
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0
0 to 0.6