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EN 1.4938 Stainless Steel vs. AWS E312

Both EN 1.4938 stainless steel and AWS E312 are iron alloys. They have 74% 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 1.4938 stainless steel and the bottom bar is AWS E312.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16 to 17
25
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
740

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 11
15

Otherwise Unclassified Properties

Base Metal Price, % relative 10
20
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.3
3.6
Embodied Energy, MJ/kg 47
52
Embodied Water, L/kg 110
200

Common Calculations

PREN (Pitting Resistance) 18
31
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 37
27
Strength to Weight: Bending, points 26 to 29
24
Thermal Shock Resistance, points 30 to 35
18

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.15
Chromium (Cr), % 11 to 12.5
28 to 32
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 80.5 to 84.8
52.3 to 63.5
Manganese (Mn), % 0.4 to 0.9
0.5 to 2.5
Molybdenum (Mo), % 1.5 to 2.0
0 to 0.75
Nickel (Ni), % 2.0 to 3.0
8.0 to 10.5
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0.25 to 0.4
0