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ASTM A227 Spring Steel vs. AWS BVAg-32

ASTM A227 spring steel belongs to the iron alloys classification, while AWS BVAg-32 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is ASTM A227 spring steel and the bottom bar is AWS BVAg-32.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
93
Poisson's Ratio 0.29
0.37
Shear Modulus, GPa 72
34
Tensile Strength: Ultimate (UTS), MPa 1720 to 2220
180

Thermal Properties

Latent Heat of Fusion, J/g 250
140
Melting Completion (Liquidus), °C 1450
950
Melting Onset (Solidus), °C 1410
900
Specific Heat Capacity, J/kg-K 470
270
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Density, g/cm3 7.8
11

Common Calculations

Stiffness to Weight: Axial, points 13
4.9
Stiffness to Weight: Bending, points 24
14
Strength to Weight: Axial, points 61 to 79
4.7
Strength to Weight: Bending, points 41 to 48
6.7
Thermal Shock Resistance, points 55 to 71
8.0

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0.45 to 0.85
0 to 0.0050
Copper (Cu), % 0
20 to 22
Iron (Fe), % 97.4 to 99.1
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0.3 to 1.3
0
Palladium (Pd), % 0
23 to 27
Phosphorus (P), % 0 to 0.040
0 to 0.0020
Silicon (Si), % 0.15 to 0.35
0
Silver (Ag), % 0
53 to 55
Sulfur (S), % 0 to 0.050
0
Zinc (Zn), % 0
0 to 0.0010