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AWS E90C-B3 vs. ASTM A229 Spring Steel

Both AWS E90C-B3 and ASTM A229 spring steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS E90C-B3 and the bottom bar is ASTM A229 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
14
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 710
1690 to 1890
Tensile Strength: Yield (Proof), MPa 600
1100 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
50
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.4
Embodied Energy, MJ/kg 24
19
Embodied Water, L/kg 59
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 970
3260 to 4080
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
60 to 67
Strength to Weight: Bending, points 23
40 to 43
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 21
54 to 60

Alloy Composition

Carbon (C), % 0.050 to 0.12
0.55 to 0.85
Chromium (Cr), % 2.0 to 2.5
0
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 93.4 to 96.4
97.5 to 99
Manganese (Mn), % 0.4 to 1.0
0.3 to 1.2
Molybdenum (Mo), % 0.9 to 1.2
0
Nickel (Ni), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.25 to 0.6
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.050
Vanadium (V), % 0 to 0.030
0
Residuals, % 0 to 0.5
0