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AISI 444 Stainless Steel vs. AISI 301LN Stainless Steel

Both AISI 444 stainless steel and AISI 301LN stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 33 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 AISI 444 stainless steel and the bottom bar is AISI 301LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
210 to 320
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
23 to 51
Fatigue Strength, MPa 210
270 to 520
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 300
450 to 670
Tensile Strength: Ultimate (UTS), MPa 470
630 to 1060
Tensile Strength: Yield (Proof), MPa 310
270 to 770

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 580
410
Maximum Temperature: Mechanical, °C 930
890
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 23
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
13
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.4
2.7
Embodied Energy, MJ/kg 47
39
Embodied Water, L/kg 130
130

Common Calculations

PREN (Pitting Resistance) 26
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
220 to 290
Resilience: Unit (Modulus of Resilience), kJ/m3 240
180 to 1520
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
22 to 38
Strength to Weight: Bending, points 17
21 to 30
Thermal Diffusivity, mm2/s 6.2
4.0
Thermal Shock Resistance, points 16
14 to 24

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.030
Chromium (Cr), % 17.5 to 19.5
16 to 18
Iron (Fe), % 73.3 to 80.8
70.7 to 77.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 1.8 to 2.5
0
Nickel (Ni), % 0 to 1.0
6.0 to 8.0
Niobium (Nb), % 0.2 to 0.8
0
Nitrogen (N), % 0 to 0.035
0.070 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0.2 to 0.8
0