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S35125 Stainless Steel vs. AISI 409Cb Stainless Steel

Both S35125 stainless steel and AISI 409Cb stainless steel are iron alloys. Both are furnished in the annealed condition. They have 54% of their average alloy composition in common.

For each property being compared, the top bar is S35125 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, % 39
24
Fatigue Strength, MPa 200
140
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
75
Shear Strength, MPa 370
270
Tensile Strength: Ultimate (UTS), MPa 540
420
Tensile Strength: Yield (Proof), MPa 230
200

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 490
440
Maximum Temperature: Mechanical, °C 1100
710
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
25
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
8.5
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.4
2.2
Embodied Energy, MJ/kg 89
31
Embodied Water, L/kg 210
94

Common Calculations

PREN (Pitting Resistance) 30
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
83
Resilience: Unit (Modulus of Resilience), kJ/m3 140
100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
15
Strength to Weight: Bending, points 18
16
Thermal Diffusivity, mm2/s 3.1
6.7
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.060
Chromium (Cr), % 20 to 23
10.5 to 11.7
Iron (Fe), % 36.2 to 45.8
84.9 to 89.5
Manganese (Mn), % 1.0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 31 to 35
0 to 0.5
Niobium (Nb), % 0.25 to 0.6
0 to 0.75
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.040