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SAE-AISI 4130 Steel vs. ASTM A209 Steel

Both SAE-AISI 4130 steel and ASTM A209 steel are iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4130 steel and the bottom bar is ASTM A209 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 300
140 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13 to 26
34
Fatigue Strength, MPa 320 to 660
180 to 200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 340 to 640
280 to 310
Tensile Strength: Ultimate (UTS), MPa 530 to 1040
420 to 460
Tensile Strength: Yield (Proof), MPa 440 to 980
220 to 250

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
410
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420 to 1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43
50
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.5
Embodied Energy, MJ/kg 20
20
Embodied Water, L/kg 50
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 180
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 2550
130 to 170
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19 to 37
15 to 16
Strength to Weight: Bending, points 19 to 29
16 to 17
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 16 to 31
12 to 14