MakeItFrom.com
Menu (ESC)

ACI-ASTM CA40F Steel vs. ASTM A232 Spring Steel

Both ACI-ASTM CA40F steel and ASTM A232 spring steel are iron alloys. They have 87% of their average alloy composition in common. There are 29 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 ACI-ASTM CA40F steel and the bottom bar is ASTM A232 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
540
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13
14
Fatigue Strength, MPa 320
1040
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 770
1790
Tensile Strength: Yield (Proof), MPa 550
1610

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 750
420
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
52
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
2.3
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.0
Embodied Energy, MJ/kg 28
28
Embodied Water, L/kg 100
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
64
Strength to Weight: Bending, points 24
42
Thermal Diffusivity, mm2/s 7.2
14
Thermal Shock Resistance, points 28
53

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.48 to 0.53
Chromium (Cr), % 11.5 to 14
0.8 to 1.1
Iron (Fe), % 81.6 to 88.3
96.8 to 97.7
Manganese (Mn), % 0 to 1.0
0.7 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.5
0.15 to 0.35
Sulfur (S), % 0.2 to 0.4
0 to 0.035
Vanadium (V), % 0
0.15 to 0.3