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ASTM A369 Grade FP5 vs. S42300 Stainless Steel

Both ASTM A369 grade FP5 and S42300 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 32 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 FP5 and the bottom bar is S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
9.1
Fatigue Strength, MPa 160
440
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 300
650
Tensile Strength: Ultimate (UTS), MPa 470
1100
Tensile Strength: Yield (Proof), MPa 240
850

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 510
750
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
4.5
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
5.2

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
9.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
3.2
Embodied Energy, MJ/kg 23
44
Embodied Water, L/kg 69
110

Common Calculations

PREN (Pitting Resistance) 6.8
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
93
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
39
Strength to Weight: Bending, points 17
30
Thermal Diffusivity, mm2/s 11
6.8
Thermal Shock Resistance, points 13
40

Alloy Composition

Carbon (C), % 0 to 0.15
0.27 to 0.32
Chromium (Cr), % 4.0 to 6.0
11 to 12
Iron (Fe), % 92.1 to 95.3
82 to 85.1
Manganese (Mn), % 0.3 to 0.6
1.0 to 1.4
Molybdenum (Mo), % 0.45 to 0.65
2.5 to 3.0
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.025
Vanadium (V), % 0
0.2 to 0.3