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AWS E630 vs. SAE-AISI P4 Steel

Both AWS E630 and SAE-AISI P4 steel are iron alloys. They have 80% of their average alloy composition in common. There are 24 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 AWS E630 and the bottom bar is SAE-AISI P4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 1040
390 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 17
41
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 14
4.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.8
Embodied Energy, MJ/kg 40
23
Embodied Water, L/kg 140
68

Common Calculations

PREN (Pitting Resistance) 18
7.0
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 37
14 to 70
Strength to Weight: Bending, points 29
15 to 45
Thermal Diffusivity, mm2/s 4.5
11
Thermal Shock Resistance, points 28
13 to 64

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.12
Chromium (Cr), % 16 to 16.8
4.0 to 5.3
Copper (Cu), % 3.3 to 4.0
0 to 0.25
Iron (Fe), % 71.6 to 75.9
92.3 to 95.3
Manganese (Mn), % 0.25 to 0.75
0.2 to 0.6
Molybdenum (Mo), % 0 to 0.75
0.4 to 1.0
Nickel (Ni), % 4.5 to 5.0
0
Niobium (Nb), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.75
0.1 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030