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AISI 347 Stainless Steel vs. S38815 Stainless Steel

Both AISI 347 stainless steel and S38815 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 AISI 347 stainless steel and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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