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ASTM Grade HP Steel vs. AWS E630

Both ASTM grade HP steel and AWS E630 are iron alloys. They have 58% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HP steel and the bottom bar is AWS E630.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 5.1
8.0
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 490
1040

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Melting Completion (Liquidus), °C 1370
1430
Melting Onset (Solidus), °C 1330
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 16
14

Otherwise Unclassified Properties

Base Metal Price, % relative 34
14
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.8
2.8
Embodied Energy, MJ/kg 82
40
Embodied Water, L/kg 220
140

Common Calculations

PREN (Pitting Resistance) 27
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
37
Strength to Weight: Bending, points 17
29
Thermal Diffusivity, mm2/s 3.2
4.5
Thermal Shock Resistance, points 11
28

Alloy Composition

Carbon (C), % 0.35 to 0.75
0 to 0.050
Chromium (Cr), % 24 to 28
16 to 16.8
Copper (Cu), % 0
3.3 to 4.0
Iron (Fe), % 29.2 to 42.7
71.6 to 75.9
Manganese (Mn), % 0 to 2.0
0.25 to 0.75
Molybdenum (Mo), % 0 to 0.5
0 to 0.75
Nickel (Ni), % 33 to 37
4.5 to 5.0
Niobium (Nb), % 0
0.15 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.5
0 to 0.75
Sulfur (S), % 0 to 0.040
0 to 0.030