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AISI 204 Stainless Steel vs. AISI 409Cb Stainless Steel

Both AISI 204 stainless steel and AISI 409Cb stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 204 stainless steel and the bottom bar is AISI 409Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23 to 39
24
Fatigue Strength, MPa 320 to 720
140
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 500 to 700
270
Tensile Strength: Ultimate (UTS), MPa 730 to 1100
420
Tensile Strength: Yield (Proof), MPa 380 to 1080
200

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 850
710
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
8.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
2.2
Embodied Energy, MJ/kg 35
31
Embodied Water, L/kg 130
94

Common Calculations

PREN (Pitting Resistance) 20
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240 to 250
83
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 2940
100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 40
15
Strength to Weight: Bending, points 24 to 31
16
Thermal Diffusivity, mm2/s 4.1
6.7
Thermal Shock Resistance, points 16 to 24
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 15 to 17
10.5 to 11.7
Iron (Fe), % 69.6 to 76.4
84.9 to 89.5
Manganese (Mn), % 7.0 to 9.0
0 to 1.0
Nickel (Ni), % 1.5 to 3.0
0 to 0.5
Niobium (Nb), % 0
0 to 0.75
Nitrogen (N), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.040