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S39277 Stainless Steel vs. AISI 304H Stainless Steel

Both S39277 stainless steel and AISI 304H stainless steel are iron alloys. Both are furnished in the annealed condition. They have 88% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S39277 stainless steel and the bottom bar is AISI 304H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
40
Fatigue Strength, MPa 480
200
Poisson's Ratio 0.27
0.28
Reduction in Area, % 57
51
Shear Modulus, GPa 80
77
Shear Strength, MPa 600
400
Tensile Strength: Ultimate (UTS), MPa 930
580
Tensile Strength: Yield (Proof), MPa 660
230

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
17
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 23
15
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.2
3.0
Embodied Energy, MJ/kg 59
43
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 43
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
190
Resilience: Unit (Modulus of Resilience), kJ/m3 1070
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
21
Strength to Weight: Bending, points 27
20
Thermal Diffusivity, mm2/s 4.2
4.5
Thermal Shock Resistance, points 26
13

Alloy Composition

Carbon (C), % 0 to 0.025
0.040 to 0.1
Chromium (Cr), % 24 to 26
18 to 20
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 56.8 to 64.3
66.6 to 74
Manganese (Mn), % 0 to 0.8
0 to 2.0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 6.5 to 8.0
8.0 to 10.5
Nitrogen (N), % 0.23 to 0.33
0
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.8
0 to 0.75
Sulfur (S), % 0 to 0.0020
0 to 0.030
Tungsten (W), % 0.8 to 1.2
0