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N08031 Stainless Steel vs. ASTM A369 Grade FP22

Both N08031 stainless steel and ASTM A369 grade FP22 are iron alloys. Both are furnished in the annealed condition. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is N08031 stainless steel and the bottom bar is ASTM A369 grade FP22.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 45
20
Fatigue Strength, MPa 290
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
74
Shear Strength, MPa 510
300
Tensile Strength: Ultimate (UTS), MPa 730
470
Tensile Strength: Yield (Proof), MPa 310
240

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Maximum Temperature: Mechanical, °C 1100
460
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
39
Thermal Expansion, µm/m-K 18
13

Otherwise Unclassified Properties

Base Metal Price, % relative 39
3.8
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 7.1
1.7
Embodied Energy, MJ/kg 96
23
Embodied Water, L/kg 240
58

Common Calculations

PREN (Pitting Resistance) 52
5.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
80
Resilience: Unit (Modulus of Resilience), kJ/m3 230
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 22
17
Thermal Diffusivity, mm2/s 3.1
11
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0 to 0.015
0.050 to 0.15
Chromium (Cr), % 26 to 28
1.9 to 2.6
Copper (Cu), % 1.0 to 1.4
0
Iron (Fe), % 29 to 36.9
95 to 96.9
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Molybdenum (Mo), % 6.0 to 7.0
0.87 to 1.1
Nickel (Ni), % 30 to 32
0
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.3
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.025