MakeItFrom.com
Menu (ESC)

SAE-AISI T4 Steel vs. ASTM A229 Spring Steel

Both SAE-AISI T4 steel and ASTM A229 spring steel are iron alloys. They have 71% 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 SAE-AISI T4 steel and the bottom bar is ASTM A229 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 800 to 2140
1690 to 1890

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1810
1450
Melting Onset (Solidus), °C 1750
1410
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 21
50
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 55
1.8
Density, g/cm3 9.4
7.8
Embodied Carbon, kg CO2/kg material 8.5
1.4
Embodied Energy, MJ/kg 130
19
Embodied Water, L/kg 120
46

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 24 to 64
60 to 67
Strength to Weight: Bending, points 20 to 39
40 to 43
Thermal Diffusivity, mm2/s 5.4
14
Thermal Shock Resistance, points 24 to 64
54 to 60

Alloy Composition

Carbon (C), % 0.7 to 0.8
0.55 to 0.85
Chromium (Cr), % 3.8 to 4.5
0
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 66.3 to 72.3
97.5 to 99
Manganese (Mn), % 0.1 to 0.4
0.3 to 1.2
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.050
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 0.8 to 1.2
0

Comparable Variants