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S44735 Stainless Steel vs. AISI 440A Stainless Steel

Both S44735 stainless steel and AISI 440A stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S44735 stainless steel 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, % 21
5.0 to 20
Fatigue Strength, MPa 300
270 to 790
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 82
77
Shear Strength, MPa 390
450 to 1040
Tensile Strength: Ultimate (UTS), MPa 630
730 to 1790
Tensile Strength: Yield (Proof), MPa 460
420 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 650
400
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 11
10

Otherwise Unclassified Properties

Base Metal Price, % relative 21
9.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 4.4
2.2
Embodied Energy, MJ/kg 61
31
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 42
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
87 to 120
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 23
26 to 65
Strength to Weight: Bending, points 21
23 to 43
Thermal Shock Resistance, points 20
26 to 65

Alloy Composition

Carbon (C), % 0 to 0.030
0.6 to 0.75
Chromium (Cr), % 28 to 30
16 to 18
Iron (Fe), % 60.7 to 68.4
78.4 to 83.4
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 3.6 to 4.2
0 to 0.75
Nickel (Ni), % 0 to 1.0
0
Niobium (Nb), % 0.2 to 1.0
0
Nitrogen (N), % 0 to 0.045
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
Titanium (Ti), % 0.2 to 1.0
0