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S39277 Stainless Steel vs. S44700 Stainless Steel

Both S39277 stainless steel and S44700 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 89% 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 S39277 stainless steel and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
200
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 28
23
Fatigue Strength, MPa 480
300
Poisson's Ratio 0.27
0.27
Reduction in Area, % 57
45
Shear Modulus, GPa 80
82
Shear Strength, MPa 600
380
Tensile Strength: Ultimate (UTS), MPa 930
600
Tensile Strength: Yield (Proof), MPa 660
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 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 23
18
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.2
3.6
Embodied Energy, MJ/kg 59
49
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 43
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1070
480
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
21
Strength to Weight: Bending, points 27
20
Thermal Shock Resistance, points 26
19

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.010
Chromium (Cr), % 24 to 26
28 to 30
Copper (Cu), % 1.2 to 2.0
0 to 0.15
Iron (Fe), % 56.8 to 64.3
64.9 to 68.5
Manganese (Mn), % 0 to 0.8
0 to 0.3
Molybdenum (Mo), % 3.0 to 4.0
3.5 to 4.2
Nickel (Ni), % 6.5 to 8.0
0 to 0.15
Nitrogen (N), % 0.23 to 0.33
0 to 0.020
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 0.2
Sulfur (S), % 0 to 0.0020
0 to 0.020
Tungsten (W), % 0.8 to 1.2
0