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ASTM A372 Grade B Steel vs. N08330 Stainless Steel

Both ASTM A372 grade B steel and N08330 stainless steel are iron alloys. They have 44% of their average alloy composition in common. There are 31 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 A372 grade B steel and the bottom bar is N08330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
34
Fatigue Strength, MPa 240
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 380
360
Tensile Strength: Ultimate (UTS), MPa 600
550
Tensile Strength: Yield (Proof), MPa 350
230

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1050
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
32
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
5.4
Embodied Energy, MJ/kg 18
77
Embodied Water, L/kg 46
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
150
Resilience: Unit (Modulus of Resilience), kJ/m3 330
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
19
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 14
3.1
Thermal Shock Resistance, points 19
13

Alloy Composition

Carbon (C), % 0 to 0.35
0 to 0.080
Chromium (Cr), % 0
17 to 20
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 97.9 to 99.85
38.3 to 48.3
Lead (Pb), % 0
0 to 0.0050
Manganese (Mn), % 0 to 1.4
0 to 2.0
Nickel (Ni), % 0
34 to 37
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0.75 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Tin (Sn), % 0
0 to 0.025