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AWS E630 vs. S44700 Stainless Steel

Both AWS E630 and S44700 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AWS E630 and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 8.0
23
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
82
Tensile Strength: Ultimate (UTS), MPa 1040
600

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 14
11

Otherwise Unclassified Properties

Base Metal Price, % relative 14
18
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.6
Embodied Energy, MJ/kg 40
49
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 18
42
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 37
21
Strength to Weight: Bending, points 29
20
Thermal Shock Resistance, points 28
19

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.010
Chromium (Cr), % 16 to 16.8
28 to 30
Copper (Cu), % 3.3 to 4.0
0 to 0.15
Iron (Fe), % 71.6 to 75.9
64.9 to 68.5
Manganese (Mn), % 0.25 to 0.75
0 to 0.3
Molybdenum (Mo), % 0 to 0.75
3.5 to 4.2
Nickel (Ni), % 4.5 to 5.0
0 to 0.15
Niobium (Nb), % 0.15 to 0.3
0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.75
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.020