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ASTM A369 Grade FP5 vs. S41003 Stainless Steel

Both ASTM A369 grade FP5 and S41003 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 92% 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 S41003 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
21
Fatigue Strength, MPa 160
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 300
320
Tensile Strength: Ultimate (UTS), MPa 470
520
Tensile Strength: Yield (Proof), MPa 240
310

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 510
720
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
27
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.9
Embodied Energy, MJ/kg 23
27
Embodied Water, L/kg 69
97

Common Calculations

PREN (Pitting Resistance) 6.8
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
92
Resilience: Unit (Modulus of Resilience), kJ/m3 140
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 11
7.2
Thermal Shock Resistance, points 13
19

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 4.0 to 6.0
10.5 to 12.5
Iron (Fe), % 92.1 to 95.3
83.4 to 89.5
Manganese (Mn), % 0.3 to 0.6
0 to 1.5
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0
0 to 1.5
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030