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AISI 347LN Stainless Steel vs. AISI 304LN Stainless Steel

Both AISI 347LN stainless steel and AISI 304LN stainless steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 33 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 347LN stainless steel and the bottom bar is AISI 304LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
7.8 to 46
Fatigue Strength, MPa 200
200 to 440
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 400
400 to 680
Tensile Strength: Ultimate (UTS), MPa 590
580 to 1160
Tensile Strength: Yield (Proof), MPa 230
230 to 870

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 940
960
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 18
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.5
3.1
Embodied Energy, MJ/kg 49
44
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 19
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
83 to 270
Resilience: Unit (Modulus of Resilience), kJ/m3 130
140 to 1900
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
21 to 41
Strength to Weight: Bending, points 20
20 to 31
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 13
13 to 26

Alloy Composition

Carbon (C), % 0.0050 to 0.020
0 to 0.030
Chromium (Cr), % 17 to 19
18 to 20
Iron (Fe), % 64.3 to 73.7
65 to 73.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 9.0 to 13
8.0 to 12
Niobium (Nb), % 0.2 to 0.5
0
Nitrogen (N), % 0.060 to 0.1
0.1 to 0.16
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030