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AISI 440A Stainless Steel vs. AWS E2595

Both AISI 440A stainless steel and AWS E2595 are iron alloys. They have 76% 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 440A stainless steel and the bottom bar is AWS E2595.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 5.0 to 20
17
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 730 to 1790
850

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
16
Thermal Expansion, µm/m-K 10
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
23
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
4.4
Embodied Energy, MJ/kg 31
61
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 18
42
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 65
30
Strength to Weight: Bending, points 23 to 43
25
Thermal Diffusivity, mm2/s 6.2
4.2
Thermal Shock Resistance, points 26 to 65
21

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.040
Chromium (Cr), % 16 to 18
24 to 27
Copper (Cu), % 0
0.4 to 1.5
Iron (Fe), % 78.4 to 83.4
51.4 to 64.5
Manganese (Mn), % 0 to 1.0
0 to 2.5
Molybdenum (Mo), % 0 to 0.75
2.5 to 4.5
Nickel (Ni), % 0
8.0 to 10.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.2
Sulfur (S), % 0 to 0.015
0 to 0.025
Tungsten (W), % 0
0.4 to 1.0