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AWS E33-31 vs. S44800 Stainless Steel

Both AWS E33-31 and S44800 stainless steel are iron alloys. They have 63% 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 E33-31 and the bottom bar is S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 29
23
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 81
82
Tensile Strength: Ultimate (UTS), MPa 810
590

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1330
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 14
11

Otherwise Unclassified Properties

Base Metal Price, % relative 36
19
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 6.0
3.8
Embodied Energy, MJ/kg 86
52
Embodied Water, L/kg 260
190

Common Calculations

PREN (Pitting Resistance) 44
42
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
21
Strength to Weight: Bending, points 24
20
Thermal Shock Resistance, points 19
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.010
Chromium (Cr), % 31 to 35
28 to 30
Copper (Cu), % 0.4 to 0.8
0 to 0.15
Iron (Fe), % 24.7 to 34.8
62.6 to 66.5
Manganese (Mn), % 2.5 to 4.0
0 to 0.3
Molybdenum (Mo), % 1.0 to 2.0
3.5 to 4.2
Nickel (Ni), % 30 to 32
2.0 to 2.5
Nitrogen (N), % 0.3 to 0.5
0 to 0.020
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.9
0 to 0.2
Sulfur (S), % 0 to 0.010
0 to 0.020