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ASTM A369 Grade FP5 vs. EN 1.4318 Stainless Steel

Both ASTM A369 grade FP5 and EN 1.4318 stainless steel are iron alloys. They have 80% 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 ASTM A369 grade FP5 and the bottom bar is EN 1.4318 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
230
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
44
Fatigue Strength, MPa 160
340
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 300
520
Tensile Strength: Ultimate (UTS), MPa 470
740
Tensile Strength: Yield (Proof), MPa 240
380

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 510
910
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.8
Embodied Energy, MJ/kg 23
39
Embodied Water, L/kg 69
130

Common Calculations

PREN (Pitting Resistance) 6.8
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
280
Resilience: Unit (Modulus of Resilience), kJ/m3 140
360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
27
Strength to Weight: Bending, points 17
23
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 13
17

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 4.0 to 6.0
16.5 to 18.5
Iron (Fe), % 92.1 to 95.3
70.2 to 77.4
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015