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AWS E33-31 vs. EN 1.4424 Stainless Steel

Both AWS E33-31 and EN 1.4424 stainless steel are iron alloys. They have 57% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AWS E33-31 and the bottom bar is EN 1.4424 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 29
28
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 810
800

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Melting Completion (Liquidus), °C 1380
1430
Melting Onset (Solidus), °C 1330
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
15
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 6.0
3.4
Embodied Energy, MJ/kg 86
46
Embodied Water, L/kg 260
140

Common Calculations

PREN (Pitting Resistance) 44
29
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
29
Strength to Weight: Bending, points 24
25
Thermal Shock Resistance, points 19
23

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 31 to 35
18 to 19
Copper (Cu), % 0.4 to 0.8
0
Iron (Fe), % 24.7 to 34.8
68.6 to 72.4
Manganese (Mn), % 2.5 to 4.0
1.2 to 2.0
Molybdenum (Mo), % 1.0 to 2.0
2.5 to 3.0
Nickel (Ni), % 30 to 32
4.5 to 5.2
Nitrogen (N), % 0.3 to 0.5
0.050 to 0.1
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.9
1.4 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.015