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S44625 Stainless Steel vs. AISI 405 Stainless Steel

Both S44625 stainless steel and AISI 405 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 86% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S44625 stainless steel and the bottom bar is AISI 405 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 22
22
Fatigue Strength, MPa 240
130
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
76
Shear Strength, MPa 370
300
Tensile Strength: Ultimate (UTS), MPa 590
470
Tensile Strength: Yield (Proof), MPa 360
200

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
820
Melting Completion (Liquidus), °C 1440
1530
Melting Onset (Solidus), °C 1400
1480
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
30
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 14
7.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.8
2.0
Embodied Energy, MJ/kg 39
28
Embodied Water, L/kg 160
100

Common Calculations

PREN (Pitting Resistance) 30
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
84
Resilience: Unit (Modulus of Resilience), kJ/m3 310
100
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
17
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 4.6
8.1
Thermal Shock Resistance, points 19
16

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.3
Carbon (C), % 0 to 0.010
0 to 0.080
Chromium (Cr), % 25 to 27.5
11.5 to 14.5
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 69.4 to 74.3
82.5 to 88.4
Manganese (Mn), % 0 to 0.4
0 to 1.0
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 0 to 0.5
0 to 0.6
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030