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AWS E3155 vs. AISI 440A Stainless Steel

Both AWS E3155 and AISI 440A stainless steel are iron alloys. They have 48% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS E3155 and the bottom bar is AISI 440A stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
5.0 to 20
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
77
Tensile Strength: Ultimate (UTS), MPa 770
730 to 1790

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
23
Thermal Expansion, µm/m-K 13
10

Otherwise Unclassified Properties

Base Metal Price, % relative 70
9.0
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 7.7
2.2
Embodied Energy, MJ/kg 110
31
Embodied Water, L/kg 300
120

Common Calculations

PREN (Pitting Resistance) 35
18
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
26 to 65
Strength to Weight: Bending, points 22
23 to 43
Thermal Diffusivity, mm2/s 3.3
6.2
Thermal Shock Resistance, points 20
26 to 65

Alloy Composition

Carbon (C), % 0 to 0.1
0.6 to 0.75
Chromium (Cr), % 20 to 22.5
16 to 18
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 23.3 to 36.3
78.4 to 83.4
Manganese (Mn), % 1.0 to 2.5
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0 to 0.75
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 2.0 to 3.0
0