MakeItFrom.com
Menu (ESC)

ASTM A387 Grade 9 Steel vs. ASTM B522 Class II

ASTM A387 grade 9 steel belongs to the iron alloys classification, while ASTM B522 class II belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ASTM A387 grade 9 steel and the bottom bar is ASTM B522 class II.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
96
Elongation at Break, % 20 to 21
1.1 to 28
Poisson's Ratio 0.28
0.41
Shear Modulus, GPa 75
34
Shear Strength, MPa 310 to 380
180 to 280
Tensile Strength: Ultimate (UTS), MPa 500 to 600
280 to 490
Tensile Strength: Yield (Proof), MPa 230 to 350
120 to 210

Thermal Properties

Latent Heat of Fusion, J/g 270
77
Melting Completion (Liquidus), °C 1460
1030
Melting Onset (Solidus), °C 1410
1030
Specific Heat Capacity, J/kg-K 470
160
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 10
5.7

Otherwise Unclassified Properties

Density, g/cm3 7.8
17

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
4.4 to 63
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 310
75 to 230
Stiffness to Weight: Axial, points 14
3.1
Stiffness to Weight: Bending, points 25
8.9
Strength to Weight: Axial, points 18 to 21
4.4 to 7.8
Strength to Weight: Bending, points 18 to 20
5.5 to 8.0
Thermal Shock Resistance, points 14 to 17
13 to 24

Alloy Composition

Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 8.0 to 10
0
Gold (Au), % 0
68.5 to 69.5
Iron (Fe), % 87.1 to 90.8
0
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.025
0
Platinum (Pt), % 0
5.5 to 6.5
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
24.5 to 25.5
Sulfur (S), % 0 to 0.025
0 to 0.010
Vanadium (V), % 0 to 0.040
0
Residuals, % 0
0 to 0.26

Comparable Variants