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AISI 440B Stainless Steel vs. AWS E317

Both AISI 440B stainless steel and AWS E317 are iron alloys. They have 80% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 440B stainless steel and the bottom bar is AWS E317.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 3.0 to 18
34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 740 to 1930
620

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1480
1450
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
15
Thermal Expansion, µm/m-K 10
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
22
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
4.3
Embodied Energy, MJ/kg 31
59
Embodied Water, L/kg 120
170

Common Calculations

PREN (Pitting Resistance) 18
31
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 70
22
Strength to Weight: Bending, points 24 to 45
20
Thermal Diffusivity, mm2/s 6.1
3.9
Thermal Shock Resistance, points 27 to 70
16

Alloy Composition

Carbon (C), % 0.75 to 1.0
0 to 0.080
Chromium (Cr), % 16 to 18
18 to 21
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 78.2 to 83.3
56.6 to 66.5
Manganese (Mn), % 0 to 1.0
0.5 to 2.5
Molybdenum (Mo), % 0 to 0.75
3.0 to 4.0
Nickel (Ni), % 0
12 to 14
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030