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AISI 347H Stainless Steel vs. AISI 316L Stainless Steel

Both AISI 347H stainless steel and AISI 316L stainless steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AISI 347H stainless steel and the bottom bar is AISI 316L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
9.0 to 50
Fatigue Strength, MPa 200
170 to 450
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 81
80
Shear Modulus, GPa 77
78
Shear Strength, MPa 400
370 to 690
Tensile Strength: Ultimate (UTS), MPa 580
530 to 1160
Tensile Strength: Yield (Proof), MPa 230
190 to 870

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 480
410
Maximum Temperature: Mechanical, °C 940
870
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 19
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.6
3.9
Embodied Energy, MJ/kg 52
53
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 18
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
77 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 140
93 to 1880
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
19 to 41
Strength to Weight: Bending, points 20
18 to 31
Thermal Diffusivity, mm2/s 4.2
4.1
Thermal Shock Resistance, points 13
12 to 25

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.030
Chromium (Cr), % 17 to 19
16 to 18
Iron (Fe), % 64.1 to 74
62 to 72
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 9.0 to 13
10 to 14
Niobium (Nb), % 0 to 1.0
0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030