MakeItFrom.com
Menu (ESC)

ASTM A231 Spring Steel vs. AWS BVAg-8b

ASTM A231 spring 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 (17, in this case) are not shown.

For each property being compared, the top bar is ASTM A231 spring 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 0.29
0.36
Shear Modulus, GPa 73
31
Tensile Strength: Ultimate (UTS), MPa 1790
170

Thermal Properties

Latent Heat of Fusion, J/g 250
140
Melting Completion (Liquidus), °C 1460
800
Melting Onset (Solidus), °C 1410
780
Specific Heat Capacity, J/kg-K 470
280
Thermal Expansion, µm/m-K 13
19

Otherwise Unclassified Properties

Density, g/cm3 7.8
10

Common Calculations

Stiffness to Weight: Axial, points 13
4.7
Stiffness to Weight: Bending, points 24
15
Strength to Weight: Axial, points 64
4.7
Strength to Weight: Bending, points 42
6.8
Thermal Shock Resistance, points 53
7.6

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0.48 to 0.53
0 to 0.0050
Chromium (Cr), % 0.8 to 1.1
0
Copper (Cu), % 0
26.8 to 29.2
Iron (Fe), % 96.7 to 97.7
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0.7 to 0.9
0
Nickel (Ni), % 0
0.3 to 0.7
Phosphorus (P), % 0 to 0.040
0 to 0.0020
Silicon (Si), % 0.15 to 0.35
0
Silver (Ag), % 0
70.5 to 72.5
Sulfur (S), % 0 to 0.040
0
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
0 to 0.0010