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AWS E33-31 vs. AISI 304N Stainless Steel

Both AWS E33-31 and AISI 304N stainless steel are iron alloys. They have 60% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AWS E33-31 and the bottom bar is AISI 304N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 29
9.1 to 45
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
77
Tensile Strength: Ultimate (UTS), MPa 810
620 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Melting Completion (Liquidus), °C 1380
1420
Melting Onset (Solidus), °C 1330
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
15
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 6.0
3.0
Embodied Energy, MJ/kg 86
43
Embodied Water, L/kg 260
150

Common Calculations

PREN (Pitting Resistance) 44
21
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
22 to 42
Strength to Weight: Bending, points 24
21 to 32
Thermal Shock Resistance, points 19
14 to 26

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 31 to 35
18 to 20
Copper (Cu), % 0.4 to 0.8
0
Iron (Fe), % 24.7 to 34.8
66.4 to 73.9
Manganese (Mn), % 2.5 to 4.0
0 to 2.0
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 30 to 32
8.0 to 10.5
Nitrogen (N), % 0.3 to 0.5
0.1 to 0.16
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.9
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030