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EN 1.4109 Stainless Steel vs. AWS ER90S-B3

Both EN 1.4109 stainless steel and AWS ER90S-B3 are iron alloys. They have 87% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4109 stainless steel and the bottom bar is AWS ER90S-B3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 19
19
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 770
690
Tensile Strength: Yield (Proof), MPa 420
620

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
40
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
4.1
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.8
Embodied Energy, MJ/kg 30
24
Embodied Water, L/kg 110
60

Common Calculations

PREN (Pitting Resistance) 17
6.0
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 460
1000
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
25
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 8.1
11
Thermal Shock Resistance, points 28
20

Alloy Composition

Carbon (C), % 0.6 to 0.75
0.070 to 0.12
Chromium (Cr), % 14 to 16
2.3 to 2.7
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 80.7 to 85
93.5 to 95.9
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0.4 to 0.8
0.9 to 1.2
Nickel (Ni), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.7
0.4 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.025
Residuals, % 0
0 to 0.5