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EN 1.4634 Stainless Steel vs. AWS E33-31

Both EN 1.4634 stainless steel and AWS E33-31 are iron alloys. They have 49% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.4634 stainless steel and the bottom bar is AWS E33-31.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 21
29
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 540
810

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1430
1380
Melting Onset (Solidus), °C 1390
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 10
14

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.9
6.0
Embodied Energy, MJ/kg 42
86
Embodied Water, L/kg 140
260

Common Calculations

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

Alloy Composition

Aluminum (Al), % 0.2 to 1.5
0
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 17.5 to 18.5
31 to 35
Copper (Cu), % 0 to 0.5
0.4 to 0.8
Iron (Fe), % 74.9 to 81.8
24.7 to 34.8
Manganese (Mn), % 0 to 1.0
2.5 to 4.0
Molybdenum (Mo), % 0 to 0.5
1.0 to 2.0
Nickel (Ni), % 0 to 0.5
30 to 32
Niobium (Nb), % 0.3 to 1.0
0
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.050
0 to 0.020
Silicon (Si), % 0.2 to 1.5
0 to 0.9
Sulfur (S), % 0 to 0.050
0 to 0.010