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SS 316 LN Pipe Seamless Pipe ASTM A312 Stainless Steel 316 LN Seamless Tube OD 168MM
316LN stainless is a nitrogen-strengthened version of Type 316L stainless. By means of solid solution strengthening, the nitrogen provides significantly higher yield and tensile strength as annealed than Type 316L without adversely affecting ductility, corrosion resistance or non-magnetic properties. In the hot rolled unannealed condition, yield strengths of 75 ksi (518 MPa)or higher can be achieved for bar diameters up to 1.375in (34.925 mm).
316LN stainless has good resistance to atmospheric corrosion and long-term resistance to general corrosion when embedded in concrete. In the 15 week corrosion macrocell test in simulated concrete pore solution, 316LN stainless had an average corrosion rate less than 0.25 micro-meter/yr.
In general, the corrosion resistance of 316LN stainless is similar to Type 316L. The higher nitrogen content enhances chloride pitting and crevice corrosion resistance.
316LN withstands not only ordinary rusting but also most of the organic and inorganic chemicals. It resists corrosion by nitric acid and sulfurous acid compounds.
316LN has good intergranular corrosion in the as-annealed and as-welded conditions due to its low carbon content. Some intergranular attack may occur in the hot rolled unannealed condition.
For optimum corrosion resistance, surfaces must be free of scale, lubricants, foreign particles, and coatings applied for drawing and heading. After fabrication of parts, cleaning and/or passivation should be consi
Alloy | Elong | Hardness HV | Hardness HRB | Aq Cor Res | Temp Cor Res | Sour Gas Cor Res | High Strength |
---|---|---|---|---|---|---|---|
316LN | 35 | 200 | 86 | | | | |
Alloy | Wk Number | UNS Number |
---|---|---|
316LN | 1.4406 | S31653 |
Alloy | C | Mn | Ni Min | Ni Max | Cr Min | Cr Max | Mo Min | Mo Max |
---|---|---|---|---|---|---|---|---|
316LN | 0.03 | 2.00 | 13.0 | 15.0 | 17.0 | 19.0 | 2.0 | 3.0 |
| Density g/cm3 | Density lb/in3 | Tensile ksi | Tensile MPa | Rp0.2 ksi | Rp0.2 MPa | | |
| 7.93 | 0.286 | 75 | 515 | 30 | 205 | | |
Material | Size | Swg & Bwg | Specification | Manufacturer | ||
---|---|---|---|---|---|---|
SS 316LN Seamless Tube | 6.35 mm OD To 101.6 mm OD | 20 Swg. 18 Swg. 16 Swg. | 14 Swg. 12 Swg. 10 Swg. | ASTM A213 / ASTM SA213
| China | |
SS 316LN Welded (ERW) Tube | 6.35 mm OD To 152 mm OD | 20 Swg.
| 14 Swg. 12 Swg. 10 Swg. | ASTM A249/ ASTM SA249 |
Note:- | ||||
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Grade | TP 304 TP 304H TP 304L TP 304LN TP 316 | TP 316H TP 316L TP 316LN TP 316Ti TP 309 | TP 310 TP 317L TP 321 TP 347 TP 409 | TP 410 TP 420 TP 904L TP 446 TP 202 Etc. |
Special Tube & Pipes | Precision Tubes Capillary Tube Etc. | |||
In Form of | Round Coil | ‘U’ Shape Square | Rectangular Hydraulic Tube etc. | |
In Length of | Standard & Cut length | |||
Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. | |||
Test Certificate | Manufacturer Test Certificate Laboratory Test Certificate from Govt. Approved Lab. Under Third Party Inspection . | |||
Application | Boiler and Heatexchanger | |||
Specialize | Capillary Tube, & Other Odd Size Heat Exchanger & Condenser Tubes |