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ASTM Grade HT Steel vs. AWS BVAg-8b

ASTM grade HT steel belongs to the iron alloys classification, while AWS BVAg-8b belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HT steel and the bottom bar is AWS BVAg-8b.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
84
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 76
31
Tensile Strength: Ultimate (UTS), MPa 500
170

Thermal Properties

Latent Heat of Fusion, J/g 310
140
Melting Completion (Liquidus), °C 1390
800
Melting Onset (Solidus), °C 1340
780
Specific Heat Capacity, J/kg-K 480
280
Thermal Expansion, µm/m-K 15
19

Otherwise Unclassified Properties

Density, g/cm3 8.0
10

Common Calculations

Stiffness to Weight: Axial, points 13
4.7
Stiffness to Weight: Bending, points 24
15
Strength to Weight: Axial, points 18
4.7
Strength to Weight: Bending, points 18
6.8
Thermal Shock Resistance, points 12
7.6

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0.35 to 0.75
0 to 0.0050
Chromium (Cr), % 15 to 19
0
Copper (Cu), % 0
26.8 to 29.2
Iron (Fe), % 38.2 to 51.7
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 33 to 37
0.3 to 0.7
Phosphorus (P), % 0 to 0.040
0 to 0.0020
Silicon (Si), % 0 to 2.5
0
Silver (Ag), % 0
70.5 to 72.5
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
0 to 0.0010