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ASTM A229 Spring Steel vs. SAE-AISI H19 Steel

Both ASTM A229 spring steel and SAE-AISI H19 steel are iron alloys. They have 84% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is ASTM A229 spring steel and the bottom bar is SAE-AISI H19 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
75
Tensile Strength: Ultimate (UTS), MPa 1690 to 1890
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1450
1540
Melting Onset (Solidus), °C 1410
1490
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 50
29
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
22
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.4
7.5
Embodied Energy, MJ/kg 19
110
Embodied Water, L/kg 46
110

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 60 to 67
24 to 68
Strength to Weight: Bending, points 40 to 43
22 to 43
Thermal Diffusivity, mm2/s 14
7.9
Thermal Shock Resistance, points 54 to 60
21 to 59

Alloy Composition

Carbon (C), % 0.55 to 0.85
0.32 to 0.45
Chromium (Cr), % 0
4.0 to 4.8
Cobalt (Co), % 0
4.0 to 4.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 97.5 to 99
81.4 to 85.5
Manganese (Mn), % 0.3 to 1.2
0.2 to 0.5
Molybdenum (Mo), % 0
0.3 to 0.55
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0.2 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.030
Tungsten (W), % 0
3.8 to 4.5
Vanadium (V), % 0
1.8 to 2.2

Comparable Variants