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AISI 416 Stainless Steel vs. ASTM A369 Grade FP9

Both AISI 416 stainless steel and ASTM A369 grade FP9 are iron alloys. They have a very high 96% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 416 stainless steel and the bottom bar is ASTM A369 grade FP9.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 320
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13 to 31
20
Fatigue Strength, MPa 230 to 340
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Shear Strength, MPa 340 to 480
300
Tensile Strength: Ultimate (UTS), MPa 510 to 800
470
Tensile Strength: Yield (Proof), MPa 290 to 600
240

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 680
600
Melting Completion (Liquidus), °C 1530
1450
Melting Onset (Solidus), °C 1480
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
26
Thermal Expansion, µm/m-K 9.9
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
10

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
6.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.9
2.0
Embodied Energy, MJ/kg 27
28
Embodied Water, L/kg 100
87

Common Calculations

PREN (Pitting Resistance) 13
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 140
80
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 940
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 29
17
Strength to Weight: Bending, points 18 to 25
17
Thermal Diffusivity, mm2/s 8.1
6.9
Thermal Shock Resistance, points 19 to 30
13

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.15
Chromium (Cr), % 12 to 14
8.0 to 10
Iron (Fe), % 83.2 to 87.9
87.1 to 90.3
Manganese (Mn), % 0 to 1.3
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 0 to 1.0
0.5 to 1.0
Sulfur (S), % 0.15 to 0.35
0 to 0.030