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S32750 Stainless Steel vs. S44700 Stainless Steel

Both S32750 stainless steel and S44700 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 92% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S32750 stainless steel and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
200
Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 17
23
Fatigue Strength, MPa 360
300
Poisson's Ratio 0.27
0.27
Rockwell C Hardness 28
17
Shear Modulus, GPa 81
82
Shear Strength, MPa 530
380
Tensile Strength: Ultimate (UTS), MPa 860
600
Tensile Strength: Yield (Proof), MPa 590
450

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
460
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 21
18
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.1
3.6
Embodied Energy, MJ/kg 56
49
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 43
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
120
Resilience: Unit (Modulus of Resilience), kJ/m3 860
480
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31
21
Strength to Weight: Bending, points 26
20
Thermal Shock Resistance, points 25
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.010
Chromium (Cr), % 24 to 26
28 to 30
Copper (Cu), % 0 to 0.5
0 to 0.15
Iron (Fe), % 58.1 to 66.8
64.9 to 68.5
Manganese (Mn), % 0 to 1.2
0 to 0.3
Molybdenum (Mo), % 3.0 to 5.0
3.5 to 4.2
Nickel (Ni), % 6.0 to 8.0
0 to 0.15
Nitrogen (N), % 0.24 to 0.32
0 to 0.020
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 0.2
Sulfur (S), % 0 to 0.020
0 to 0.020