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ASTM Grade HH Steel vs. ACI-ASTM CA28MWV Steel

Both ASTM grade HH steel and ACI-ASTM CA28MWV steel are iron alloys. They have 73% of their average alloy composition in common. There are 32 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 ASTM grade HH steel and the bottom bar is ACI-ASTM CA28MWV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
330
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
11
Fatigue Strength, MPa 150
470
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 580
1080
Tensile Strength: Yield (Proof), MPa 270
870

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 440
380
Maximum Temperature: Mechanical, °C 1100
740
Melting Completion (Liquidus), °C 1400
1470
Melting Onset (Solidus), °C 1360
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
25
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
11
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.7
3.1
Embodied Energy, MJ/kg 53
44
Embodied Water, L/kg 180
100

Common Calculations

PREN (Pitting Resistance) 27
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 53
110
Resilience: Unit (Modulus of Resilience), kJ/m3 190
1920
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
38
Strength to Weight: Bending, points 20
30
Thermal Diffusivity, mm2/s 3.8
6.6
Thermal Shock Resistance, points 12
40

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.2 to 0.28
Chromium (Cr), % 24 to 28
11 to 12.5
Iron (Fe), % 52.9 to 64.8
81.4 to 85.8
Manganese (Mn), % 0 to 2.0
0.5 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.3
Nickel (Ni), % 11 to 14
0.5 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3