AISI 304LN Optical, aesthetic and acoustic properties
Transparency
Opaque
Acoustic velocity
4970
–
5090
m/s
AISI 304LN Processing properties
Metal casting
Unsuitable
Metal cold forming
Limited use
Metal hot forming
Acceptable
Metal press forming
Excellent
Metal deep drawing
Excellent
Machining speed
22.3 m/min
Weldability Notes: Preheating and post weld heat treatments may be required
Excellent
Weldability – MIG
Excellent
Weldability – plasma
Excellent
Weldability – SAW
Excellent
Weldability – TIG
Excellent
Brazeability
Fair
Carbon equivalency
0.733 – 0.988
AISI 304LN Durability
Water (fresh)
Excellent
Water (salt)
Excellent
Weak acids
Excellent
Strong acids
Excellent
Weak alkalis
Excellent
Strong alkalis
Excellent
Organic solvents
Excellent
Oxidation at 500C
Excellent
UV radiation (sunlight)
Excellent
Galling resistance (adhesive wear) Notes: Aluminum bronze is the most suitable mating material to minimize galling.
Limited use
Flammability
Non-flammable
AISI 304LN Corrosion resistance
Pitting resistance equivalent number (PREN)
19.6 – 22.6
Pitting and crevice corrosion
Medium (20-30)
Stress corrosion cracking Note: Rated in chloride; Other susceptible environments: Hydrogen sulfide
Slightly susceptible
Intergranular (weld line) corrosion
Good
Inorganic acids
Moderate
Organic acids
Good
Alkalis
Moderate
Humidity / water
Excellent
Sea water
Restricted
Sour oil and gas
Poor
AISI 304LN Standards with similar compositions-Equivalent Grades
Austria: X2CrNiN1810KKW to ONORM M3121
France: Z2CN18.10AZ to AFNOR NF A35-582, Z2CN18.10AZ to AFNOR NF A36-209, Z5CN18.09Az to AFNOR NF A36-209
Germany: 1.4311 to DIN EN 10088, X2CrNiN1810 to DIN EN 10088
India: TP304LN to IS 11714/5, TP304N to IS 11714/4, TP304N to IS 11714/5
International: 10N to ISO 683-13, X2CrNiN18-10 to ISO 9327-5, X2CrNiN18-10 to ISO 9328-7, X2CrNiN18-10 to ISO 9329-4, X2CrNiN18-10 to ISO 9330-6, X5CrNiN18-8 to ISO 9328-7, X5CrNiN19-9 to ISO 16143-2, X5CrNiN19-9 to ISO 16143-3
Japan: SUS304LN to JIS G4303, SUS304LN to JIS G4304, SUS304LN to JIS G4305, SUS304LN to JIS G4306, SUS304LN to JIS G4307, SUSF304LN to JIS G3214, SUSF304N to JIS G3214
Mexico: TP304LN to NMX-B-186-SCFI, TP304N to NMX-B-186-SCFI
South Korea: STS 304LN to KS D 3706, STS F 304LN to KS D 4115, STS F 304N to KS D 4115, STS304LN to KS D 3698, STS304LN to KS D 3705
UK: 304S61 to BS 1506, X2CrNiN18-10 to BS EN 10088-1, X2CrNiN18-10 to BS EN 10088-2, X2CrNiN18-10 to BS EN 10088-3, X2CrNiN18-10 to BS EN 10216-5, X2CrNiN18-10 to BS EN 10222-5, X2CrNiN18-10 to BS EN 10250-4, X2CrNiN18-10 to BS EN 10272, X2CrNiN18-10 to BS EN 10296-2, X2CrNiN18-10 to BS EN 10297-2, X5CrNiN19-9 to BS EN 10088-1, X5CrNiN19-9 to BS EN 10088-2, X5CrNiN19-9 to BS EN 10088-3
USA: 8LN to ASTM A194/A194M, 8LNA to ASTM A194/A194M, 8N to ASTM A194/A194M, 8NA to ASTM A194/A194M, B8LN Class 1 to ASTM A320/A320M, B8LN Class 1/1D to ASTM A193/A193M, B8LNA Class 1A to ASTM A193/A193M, B8LNA Class 1A to ASTM A320/A320M, B8N Class 1B/1D to ASTM A193/A193M, B8NA Class 1A to ASTM A193/A193M, CR304LN to ASTM A403/A403M, CR304N to ASTM A403/A403M, F304LN to ASTM A336/A336M, F304LN to ASTM A965/A965M, F304N to ASTM A336/A336M, F304N to ASTM A965/A965M, F304NL to ASTM A182/A182M, S30451 to ASTM A276, S30451 to ASTM A479/A479M, S30451 to ASTM A959, S30451 to ASTM A988/A988M-98, S30453 to ASTM A240/A240M, S30453 to ASTM A276, S30453 to ASTM A479/A479M, S30453 to ASTM A666, S30453 to ASTM A959, S30453 to ASTM A988/A988M-98, S30453 to SAE J405, S30454 to ASTM A276, S30454 to ASTM A959, TP304LN to ASTM A213/A213M, TP304LN to ASTM A249/A249M, TP304LN to ASTM A269, TP304LN to ASTM A312/A312M, TP304LN to ASTM A376/A376M, TP304LN to ASTM A688/A688M, TP304LN to ASTM A813/A813M, TP304LN to ASTM A814/A814M, TP304LN to ASTM A943/A943M, TP304N to ASTM A213/A213M, TP304N to ASTM A249/A249M, TP304N to ASTM A376/A376M, TP304N to ASTM A688/A688M, TP304N to ASTM A813/A813M, TP304N to ASTM A814/A814M, TP304N to ASTM A943/A943M, UNS S30453, UNS S30454, WP304LN to ASTM A403/A403M, WP304N to ASTM A403/A403M
