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ASTM A369 Grade FP5 vs. AISI 317LMN Stainless Steel

Both ASTM A369 grade FP5 and AISI 317LMN stainless steel are iron alloys. Both are furnished in the annealed condition. They have 66% 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 AISI 317LMN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
45
Fatigue Strength, MPa 160
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
79
Shear Strength, MPa 300
430
Tensile Strength: Ultimate (UTS), MPa 470
620
Tensile Strength: Yield (Proof), MPa 240
270

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 510
1020
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.7
4.8
Embodied Energy, MJ/kg 23
65
Embodied Water, L/kg 69
170

Common Calculations

PREN (Pitting Resistance) 6.8
36
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
22
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 11
3.8
Thermal Shock Resistance, points 13
14

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 4.0 to 6.0
17 to 20
Iron (Fe), % 92.1 to 95.3
54.4 to 65.4
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.45 to 0.65
4.0 to 5.0
Nickel (Ni), % 0
13.5 to 17.5
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 0.75
Sulfur (S), % 0 to 0.025
0 to 0.030