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S38815 Stainless Steel vs. AISI 347 Stainless Steel

Both S38815 stainless steel and AISI 347 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 29 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 S38815 stainless steel and the bottom bar is AISI 347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
34 to 46
Fatigue Strength, MPa 230
220 to 270
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 410
430 to 460
Tensile Strength: Ultimate (UTS), MPa 610
610 to 690
Tensile Strength: Yield (Proof), MPa 290
240 to 350

Thermal Properties

Latent Heat of Fusion, J/g 370
290
Maximum Temperature: Corrosion, °C 400
480
Maximum Temperature: Mechanical, °C 860
870
Melting Completion (Liquidus), °C 1360
1430
Melting Onset (Solidus), °C 1310
1400
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 15
17

Otherwise Unclassified Properties

Base Metal Price, % relative 19
19
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.8
3.6
Embodied Energy, MJ/kg 54
52
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 18
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
190 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 220
150 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
22 to 25
Strength to Weight: Bending, points 21
20 to 22
Thermal Shock Resistance, points 15
13 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 13 to 15
17 to 19
Copper (Cu), % 0.75 to 1.5
0
Iron (Fe), % 56.1 to 67
64.1 to 74
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 13 to 17
9.0 to 13
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 5.5 to 6.5
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.030