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ASTM A204 Steel vs. SAE-AISI 4817 Steel

Both ASTM A204 steel and SAE-AISI 4817 steel are iron alloys.

For each property being compared, the top bar is ASTM A204 steel and the bottom bar is SAE-AISI 4817 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 22
23
Fatigue Strength, MPa 200 to 220
270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 330 to 360
350
Tensile Strength: Ultimate (UTS), MPa 520 to 590
560
Tensile Strength: Yield (Proof), MPa 290 to 330
370

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
410
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420 to 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
52
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
4.3
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.8
Embodied Energy, MJ/kg 20
24
Embodied Water, L/kg 47
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 95
110
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 290
370
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 21
20
Strength to Weight: Bending, points 18 to 20
19
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 15 to 17
17