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ASTM A369 Grade FP5 vs. S20433 Stainless Steel

Both ASTM A369 grade FP5 and S20433 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 74% 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 S20433 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
46
Fatigue Strength, MPa 160
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 300
440
Tensile Strength: Ultimate (UTS), MPa 470
630
Tensile Strength: Yield (Proof), MPa 240
270

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 510
900
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
2.7
Embodied Energy, MJ/kg 23
39
Embodied Water, L/kg 69
150

Common Calculations

PREN (Pitting Resistance) 6.8
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
230
Resilience: Unit (Modulus of Resilience), kJ/m3 140
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
23
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 13
14

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 4.0 to 6.0
17 to 18
Copper (Cu), % 0
1.5 to 3.5
Iron (Fe), % 92.1 to 95.3
64.1 to 72.4
Manganese (Mn), % 0.3 to 0.6
5.5 to 7.5
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0
3.5 to 5.5
Nitrogen (N), % 0
0.1 to 0.25
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 0.030