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ASTM A387 Grade 22 Steel vs. ASTM Grade HC Steel

Both ASTM A387 grade 22 steel and ASTM grade HC steel are iron alloys. They have 71% of their average alloy composition in common. 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 A387 grade 22 steel and the bottom bar is ASTM grade HC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
6.0
Fatigue Strength, MPa 160 to 240
96
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
80
Tensile Strength: Ultimate (UTS), MPa 480 to 600
430
Tensile Strength: Yield (Proof), MPa 230 to 350
200

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 460
1100
Melting Completion (Liquidus), °C 1470
1410
Melting Onset (Solidus), °C 1430
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 40
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
14
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 1.7
2.8
Embodied Energy, MJ/kg 23
40
Embodied Water, L/kg 58
170

Common Calculations

PREN (Pitting Resistance) 5.6
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 110
21
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
95
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 17 to 21
16
Strength to Weight: Bending, points 17 to 20
16
Thermal Diffusivity, mm2/s 11
4.5
Thermal Shock Resistance, points 14 to 17
14

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.5
Chromium (Cr), % 2.0 to 2.5
26 to 30
Iron (Fe), % 95.1 to 96.8
61.9 to 74
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
0 to 0.5
Nickel (Ni), % 0
0 to 4.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.040