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AISI 301LN (S30153) Stainless Steel

AISI 301LN stainless steel is an austenitic stainless steel formulated for primary forming into wrought products. 301LN is the AISI designation for this material. S30153 is the UNS number.

It has a moderately low embodied energy and a moderately low base cost among wrought austenitic stainless steels.

The properties of AISI 301LN stainless steel include five common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare AISI 301LN stainless steel to: wrought austenitic stainless steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Brinell Hardness

210 to 320

Elastic (Young's, Tensile) Modulus

200 GPa 28 x 106 psi

Elongation at Break

23 to 51 %

Fatigue Strength

270 to 520 MPa 38 to 75 x 103 psi

Poisson's Ratio

0.28

Shear Modulus

77 GPa 11 x 106 psi

Shear Strength

450 to 670 MPa 65 to 97 x 103 psi

Tensile Strength: Ultimate (UTS)

630 to 1060 MPa 91 to 150 x 103 psi

Tensile Strength: Yield (Proof)

270 to 770 MPa 39 to 110 x 103 psi

Thermal Properties

Latent Heat of Fusion

280 J/g

Maximum Temperature: Corrosion

410 °C 770 °F

Maximum Temperature: Mechanical

890 °C 1640 °F

Melting Completion (Liquidus)

1430 °C 2600 °F

Melting Onset (Solidus)

1380 °C 2520 °F

Specific Heat Capacity

480 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

15 W/m-K 8.7 BTU/h-ft-°F

Thermal Expansion

16 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

2.4 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.7 % IACS

Otherwise Unclassified Properties

Base Metal Price

13 % relative

Density

7.8 g/cm3 490 lb/ft3

Embodied Carbon

2.7 kg CO2/kg material

Embodied Energy

39 MJ/kg 17 x 103 BTU/lb

Embodied Water

130 L/kg 16 gal/lb

Common Calculations

PREN (Pitting Resistance)

19

Resilience: Ultimate (Unit Rupture Work)

220 to 290 MJ/m3

Resilience: Unit (Modulus of Resilience)

180 to 1520 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

22 to 38 points

Strength to Weight: Bending

21 to 30 points

Thermal Diffusivity

4.0 mm2/s

Thermal Shock Resistance

14 to 24 points

Alloy Composition

Among wrought stainless steels, the composition of AISI 301LN stainless steel is notable for containing comparatively high amounts of nickel (Ni) and chromium (Cr). Nickel is primarily used to achieve a specific microstructure. In addition, it has a beneficial effect on mechanical properties and certain types of corrosion. Chromium is the defining alloying element of stainless steel. Higher chromium content imparts additional corrosion resistance.

Iron (Fe)Fe 70.7 to 77.9
Chromium (Cr)Cr 16 to 18
Nickel (Ni)Ni 6.0 to 8.0
Manganese (Mn)Mn 0 to 2.0
Silicon (Si)Si 0 to 1.0
Nitrogen (N)N 0.070 to 0.2
Phosphorus (P)P 0 to 0.045
Carbon (C)C 0 to 0.030
Sulfur (S)S 0 to 0.030

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

ASTM A666: Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar

ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

ASTM A959: Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels

Corrosion of Austenitic Stainless Steels: Mechanism, Mitigation and Monitoring, H. S. Khatak and B. Raj (editors), 2002

Austenitic Stainless Steels: Microstructure and Mechanical Properties, P. Marshall, 1984

ASM Specialty Handbook: Stainless Steels, J. R. Davis (editor), 1994

Advances in Stainless Steels, Baldev Raj et al. (editors), 2010