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ASTM A387 Grade 22L Class 1 vs. N08925 Stainless Steel

Both ASTM A387 grade 22L class 1 and N08925 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 50% of their average alloy composition in common. There are 31 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 A387 grade 22L class 1 and the bottom bar is N08925 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
45
Fatigue Strength, MPa 160
310
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
80
Shear Strength, MPa 310
470
Tensile Strength: Ultimate (UTS), MPa 500
680
Tensile Strength: Yield (Proof), MPa 230
340

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 460
1100
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 40
13
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
33
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 1.7
6.2
Embodied Energy, MJ/kg 23
84
Embodied Water, L/kg 58
200

Common Calculations

PREN (Pitting Resistance) 5.6
44
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
250
Resilience: Unit (Modulus of Resilience), kJ/m3 140
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
23
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 11
3.5
Thermal Shock Resistance, points 14
15

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.020
Chromium (Cr), % 2.0 to 2.5
19 to 21
Copper (Cu), % 0
0.8 to 1.5
Iron (Fe), % 95.2 to 96.8
42.7 to 50.1
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
6.0 to 7.0
Nickel (Ni), % 0
24 to 26
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 0.5
Sulfur (S), % 0 to 0.025
0 to 0.030