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S32506 Stainless Steel vs. S32750 Stainless Steel

Both S32506 stainless steel and S32750 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is S32506 stainless steel and the bottom bar is S32750 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
270
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 21
17
Fatigue Strength, MPa 330
360
Poisson's Ratio 0.27
0.27
Rockwell C Hardness 28
28
Shear Modulus, GPa 81
81
Shear Strength, MPa 440
530
Tensile Strength: Ultimate (UTS), MPa 710
860
Tensile Strength: Yield (Proof), MPa 500
590

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 20
21
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.9
4.1
Embodied Energy, MJ/kg 54
56
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 38
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
130
Resilience: Unit (Modulus of Resilience), kJ/m3 620
860
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
31
Strength to Weight: Bending, points 23
26
Thermal Diffusivity, mm2/s 4.3
4.0
Thermal Shock Resistance, points 19
25

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 24 to 26
24 to 26
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 60.8 to 67.4
58.1 to 66.8
Manganese (Mn), % 0 to 1.0
0 to 1.2
Molybdenum (Mo), % 3.0 to 3.5
3.0 to 5.0
Nickel (Ni), % 5.5 to 7.2
6.0 to 8.0
Nitrogen (N), % 0.080 to 0.2
0.24 to 0.32
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.9
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.020
Tungsten (W), % 0.050 to 0.3
0