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ASTM A202 Steel vs. SAE-AISI 8630 Steel

Both ASTM A202 steel and SAE-AISI 8630 steel are iron alloys.

For each property being compared, the top bar is ASTM A202 steel and the bottom bar is SAE-AISI 8630 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 200
160 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 18
12 to 24
Fatigue Strength, MPa 240
260 to 350
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 360 to 410
340 to 410
Tensile Strength: Ultimate (UTS), MPa 590 to 670
540 to 680
Tensile Strength: Yield (Proof), MPa 350 to 360
360 to 560

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 410
410
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
39
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 19
20
Embodied Water, L/kg 49
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 96
78 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 350
340 to 840
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 24
19 to 24
Strength to Weight: Bending, points 20 to 22
19 to 22
Thermal Diffusivity, mm2/s 14
10
Thermal Shock Resistance, points 17 to 20
18 to 23

Comparable Variants