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S44625 Stainless Steel vs. S35045 Stainless Steel

Both S44625 stainless steel and S35045 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 63% of their average alloy composition in common.

For each property being compared, the top bar is S44625 stainless steel and the bottom bar is S35045 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 22
39
Fatigue Strength, MPa 240
170
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
78
Shear Strength, MPa 370
370
Tensile Strength: Ultimate (UTS), MPa 590
540
Tensile Strength: Yield (Proof), MPa 360
190

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 450
520
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1400
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 14
34
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.8
5.8
Embodied Energy, MJ/kg 39
83
Embodied Water, L/kg 160
230

Common Calculations

PREN (Pitting Resistance) 30
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
170
Resilience: Unit (Modulus of Resilience), kJ/m3 310
94
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
19
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 4.6
3.2
Thermal Shock Resistance, points 19
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0 to 0.010
0.060 to 0.1
Chromium (Cr), % 25 to 27.5
25 to 29
Copper (Cu), % 0 to 0.2
0 to 0.75
Iron (Fe), % 69.4 to 74.3
29.4 to 42.6
Manganese (Mn), % 0 to 0.4
0 to 1.5
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 0 to 0.5
32 to 37
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6