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AISI 301LN Stainless Steel vs. AISI 312 Stainless Steel

Both AISI 301LN stainless steel and AISI 312 stainless steel are iron alloys. They have a moderately high 90% 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 301LN stainless steel and the bottom bar is AISI 312 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23 to 51
28
Fatigue Strength, MPa 270 to 520
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 450 to 670
510
Tensile Strength: Ultimate (UTS), MPa 630 to 1060
780
Tensile Strength: Yield (Proof), MPa 270 to 770
510

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 890
1100
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.7
3.4
Embodied Energy, MJ/kg 39
48
Embodied Water, L/kg 130
170

Common Calculations

PREN (Pitting Resistance) 19
33
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 290
190
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1520
640
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22 to 38
28
Strength to Weight: Bending, points 21 to 30
24
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 14 to 24
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 16 to 18
24 to 26
Iron (Fe), % 70.7 to 77.9
62.2 to 69.2
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
1.2 to 2.0
Nickel (Ni), % 6.0 to 8.0
5.5 to 6.5
Nitrogen (N), % 0.070 to 0.2
0.14 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030