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ASTM A369 Grade FP22 vs. AISI 317LM Stainless Steel

Both ASTM A369 grade FP22 and AISI 317LM stainless steel are iron alloys. Both are furnished in the annealed condition. They have 63% 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 FP22 and the bottom bar is AISI 317LM 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
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
79
Shear Strength, MPa 300
410
Tensile Strength: Ultimate (UTS), MPa 470
590
Tensile Strength: Yield (Proof), MPa 240
230

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 460
300
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
24
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.7
4.8
Embodied Energy, MJ/kg 23
65
Embodied Water, L/kg 58
170

Common Calculations

PREN (Pitting Resistance) 5.5
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
210
Resilience: Unit (Modulus of Resilience), kJ/m3 150
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 11
3.8
Thermal Shock Resistance, points 14
13

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.030
Chromium (Cr), % 1.9 to 2.6
18 to 20
Iron (Fe), % 95 to 96.9
54.4 to 64.5
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.87 to 1.1
4.0 to 5.0
Nickel (Ni), % 0
13.5 to 17.5
Nitrogen (N), % 0
0 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