316 LN belongs to austenitic stainless steel, with nitrogen added on the basis of 316L. Has excellent corrosion resistance, can resist a variety of chemical media erosion. Good strength and toughness, stable performance under high temperature environment. Good weldability, welded joint strength and corrosion resistance is guaranteed.
316 LN Standards
China GB-T standard: S31653 for numerical grade, 022Cr17Ni12Mo2N for new grade, 00Cr17Ni13Mo2N for old grade.
American Standard: ASTM A standard for S31653, UNS standard for 316LN.
Japanese Standard (JIS): SUS316LN.
German Standard (DIN): 1.4429.
European Standard (EN): X2CrNiMoN17-13-3.
French Standard (NF): z2cnd17-12.
British Standard (BS): 316s61.
Sweden: 2375.
NTR Standard: APMLN.
Similar Grades: 316, 316L, 316Ti, etc.
Chemical Element Of 316 LN
| Элемент | C | Si | Mn | п | S | Cr | Ni | Пн | N |
|---|---|---|---|---|---|---|---|---|---|
| Minimum Value | / | / | / | / | / | 16 | 10 | 2 | 0.1 | Maximum Value | 0.03 | 1 | 2 | 0.045 | 0.03 | 18 | 13 | 3 | 0.16 |
Specification Of Varieties
Commonly, there are plates, tubes, rods, wires, profiles and so on. Plate thickness is generally in the 0.5mm-50mm or so. Pipes and tubes have a wide range of outer diameters, from a few millimeters to hundreds of millimeters, and a variety of specifications for wall thickness. The diameter of rods is generally around 6mm-300mm.
Трубы из нержавеющей стали
Melting And Casting
Generally use electric furnace melting, such as electric arc furnace, induction furnace, etc. Vacuum melting can also be used to improve the purity. To accurately control the temperature and chemical composition, add various alloying elements in proportion.
Sand casting, investment casting, centrifugal casting and other processes can be adopted.
Generally adopts solid solution annealing process. The solid solution temperature is between 1050-1150℃, and the holding time is determined according to the thickness of the sheet. The holding time depends on the thickness of the sheet, usually 30-60 minutes, and then cooled quickly.
Applications And Special Requirements
Application Overview:
Marine environment, chemical equipment, medical equipment, food processing, petrochemical, aerospace, building water supply and drainage systems, low temperature applications and other fields.
Special Requirements:
When processing, pay attention to controlling the cutting parameters to prevent tool wear. Welding should strictly implement the welding process and select appropriate welding materials and process parameters. Appropriate heat treatment may be required after welding.
Overview of nickel-based high-temperature alloys: 316LN is not a nickel-based high-temperature alloy, but an austenitic stainless steel. Nickel-based high-temperature alloys are based on nickel, adding a variety of alloying elements, with excellent high-temperature strength, oxidation resistance, corrosion resistance and thermal stability, used in aerospace, gas turbines and other high-temperature fields.
Metallographic structure: Metallographic organization is mainly austenitic, with face-centered cubic crystal structure.
Classification Of 316 LN
According To Processing Technology: Hot rolled material, cold rolled material, forging material, casting material, cold drawn material, etc.
According To Surface Treatment: Pickled surface, bright surface, black surface, etc.
К Shape: Plate, pipe, bar, wire, profile, etc.
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