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AWS E630 vs. N08031 Stainless Steel

Both AWS E630 and N08031 stainless steel are iron alloys. They have 56% 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 AWS E630 and the bottom bar is N08031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 8.0
45
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
81
Tensile Strength: Ultimate (UTS), MPa 1040
730

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 14
18

Otherwise Unclassified Properties

Base Metal Price, % relative 14
39
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.8
7.1
Embodied Energy, MJ/kg 40
96
Embodied Water, L/kg 140
240

Common Calculations

PREN (Pitting Resistance) 18
52
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 37
25
Strength to Weight: Bending, points 29
22
Thermal Diffusivity, mm2/s 4.5
3.1
Thermal Shock Resistance, points 28
14

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.015
Chromium (Cr), % 16 to 16.8
26 to 28
Copper (Cu), % 3.3 to 4.0
1.0 to 1.4
Iron (Fe), % 71.6 to 75.9
29 to 36.9
Manganese (Mn), % 0.25 to 0.75
0 to 2.0
Molybdenum (Mo), % 0 to 0.75
6.0 to 7.0
Nickel (Ni), % 4.5 to 5.0
30 to 32
Niobium (Nb), % 0.15 to 0.3
0
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 0.75
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.010