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N08332 Stainless Steel vs. ASTM A387 Grade 91 Class 2

Both N08332 stainless steel and ASTM A387 grade 91 class 2 are iron alloys. They have 53% of their average alloy composition in common. There are 32 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 N08332 stainless steel and the bottom bar is ASTM A387 grade 91 class 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
20
Fatigue Strength, MPa 170
330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Shear Strength, MPa 350
420
Tensile Strength: Ultimate (UTS), MPa 520
670
Tensile Strength: Yield (Proof), MPa 210
470

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Mechanical, °C 1050
600
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
26
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
10

Otherwise Unclassified Properties

Base Metal Price, % relative 32
7.0
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
2.6
Embodied Energy, MJ/kg 77
37
Embodied Water, L/kg 190
88

Common Calculations

PREN (Pitting Resistance) 19
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
120
Resilience: Unit (Modulus of Resilience), kJ/m3 110
580
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
24
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 3.1
6.9
Thermal Shock Resistance, points 12
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Carbon (C), % 0.050 to 0.1
0.080 to 0.12
Chromium (Cr), % 17 to 20
8.0 to 9.5
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 38.3 to 48.2
87.3 to 90.3
Lead (Pb), % 0 to 0.0050
0
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Molybdenum (Mo), % 0
0.85 to 1.1
Nickel (Ni), % 34 to 37
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.75 to 1.5
0.2 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Tin (Sn), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010