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AWS E630 vs. AWS E2595

Both AWS E630 and AWS E2595 are iron alloys. They have 81% of their average alloy composition in common.

For each property being compared, the top bar is AWS E630 and the bottom bar is AWS E2595.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 8.0
17
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 1040
850

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 14
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
23
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.8
4.4
Embodied Energy, MJ/kg 40
61
Embodied Water, L/kg 140
190

Common Calculations

PREN (Pitting Resistance) 18
42
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 37
30
Strength to Weight: Bending, points 29
25
Thermal Diffusivity, mm2/s 4.5
4.2
Thermal Shock Resistance, points 28
21

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.040
Chromium (Cr), % 16 to 16.8
24 to 27
Copper (Cu), % 3.3 to 4.0
0.4 to 1.5
Iron (Fe), % 71.6 to 75.9
51.4 to 64.5
Manganese (Mn), % 0.25 to 0.75
0 to 2.5
Molybdenum (Mo), % 0 to 0.75
2.5 to 4.5
Nickel (Ni), % 4.5 to 5.0
8.0 to 10.5
Niobium (Nb), % 0.15 to 0.3
0
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 1.2
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 0
0.4 to 1.0