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S21603 Stainless Steel vs. AISI 440C Stainless Steel

Both S21603 stainless steel and AISI 440C stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 27 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 S21603 stainless steel and the bottom bar is AISI 440C stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
2.0 to 14
Fatigue Strength, MPa 360
260 to 840
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Shear Strength, MPa 490
430 to 1120
Tensile Strength: Ultimate (UTS), MPa 690
710 to 1970
Tensile Strength: Yield (Proof), MPa 390
450 to 1900

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 990
870
Melting Completion (Liquidus), °C 1420
1480
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
10

Otherwise Unclassified Properties

Base Metal Price, % relative 17
9.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.6
2.2
Embodied Energy, MJ/kg 50
31
Embodied Water, L/kg 160
120

Common Calculations

PREN (Pitting Resistance) 34
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
39 to 88
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
26 to 71
Strength to Weight: Bending, points 22
23 to 46
Thermal Shock Resistance, points 15
26 to 71

Alloy Composition

Carbon (C), % 0 to 0.030
1.0 to 1.2
Chromium (Cr), % 17.5 to 22
16 to 18
Iron (Fe), % 57.6 to 67.8
78 to 83.1
Manganese (Mn), % 7.5 to 9.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.75
Nickel (Ni), % 5.0 to 7.0
0
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015