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ASTM Grade HH Steel vs. AWS E2553

Both ASTM grade HH steel and AWS E2553 are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HH steel and the bottom bar is AWS E2553.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
17
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 580
850

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1360
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
16
Thermal Expansion, µm/m-K 17
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 20
21
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.7
4.0
Embodied Energy, MJ/kg 53
56
Embodied Water, L/kg 180
190

Common Calculations

PREN (Pitting Resistance) 27
40
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
30
Strength to Weight: Bending, points 20
26
Thermal Diffusivity, mm2/s 3.8
4.3
Thermal Shock Resistance, points 12
21

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.060
Chromium (Cr), % 24 to 28
24 to 27
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 52.9 to 64.8
55.2 to 64.5
Manganese (Mn), % 0 to 2.0
0.5 to 1.5
Molybdenum (Mo), % 0 to 0.5
2.9 to 3.9
Nickel (Ni), % 11 to 14
6.5 to 8.5
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030