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S44735 Stainless Steel vs. S32750 Stainless Steel

Both S44735 stainless steel and S32750 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 93% of their average alloy composition in common. There are 30 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 S44735 stainless steel and the bottom bar is S32750 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
270
Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 21
17
Fatigue Strength, MPa 300
360
Poisson's Ratio 0.27
0.27
Rockwell C Hardness 22
28
Shear Modulus, GPa 82
81
Shear Strength, MPa 390
530
Tensile Strength: Ultimate (UTS), MPa 630
860
Tensile Strength: Yield (Proof), MPa 460
590

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 650
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 21
21
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 4.4
4.1
Embodied Energy, MJ/kg 61
56
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 42
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 520
860
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 23
31
Strength to Weight: Bending, points 21
26
Thermal Shock Resistance, points 20
25

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 28 to 30
24 to 26
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 60.7 to 68.4
58.1 to 66.8
Manganese (Mn), % 0 to 1.0
0 to 1.2
Molybdenum (Mo), % 3.6 to 4.2
3.0 to 5.0
Nickel (Ni), % 0 to 1.0
6.0 to 8.0
Niobium (Nb), % 0.2 to 1.0
0
Nitrogen (N), % 0 to 0.045
0.24 to 0.32
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0.2 to 1.0
0