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ASTM A202 Steel vs. ASTM Grade HK Steel

Both ASTM A202 steel and ASTM grade HK steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A202 steel and the bottom bar is ASTM grade HK steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 200
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 18
11
Fatigue Strength, MPa 240
150
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 590 to 670
500
Tensile Strength: Yield (Proof), MPa 350 to 360
270

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
25
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
4.4
Embodied Energy, MJ/kg 19
63
Embodied Water, L/kg 49
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 96
48
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 350
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 24
18
Strength to Weight: Bending, points 20 to 22
18
Thermal Diffusivity, mm2/s 14
3.9
Thermal Shock Resistance, points 17 to 20
11