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1 The 316L stainless steel tube has a maximum carbon content of 0.03 and can be used in applications where annealing is not possible after welding and maximum corrosion resistance is required.
316L stainless steel pipe due to the addition of Mo, corrosion resistance, in particular, excellent pitting corrosion resistance; high temperature strength is also very good; excellent work hardening (weak magnetic after processing); solid state without magnetic. 316L stainless steel number: 00Cr17Ni14Mo2
Chemical composition % C: ≤ 0.03 Si : ≤ 1.0 Mn : ≤ 2.0 Cr : 16.0 to 18.0 Ni : 12.0 to 15.0 S : ≤ 0.03 P : ≤ 0.045 Mo : 2.0 to 3.0.
2 316 and 317 stainless steel pipes (see below for properties of 317 stainless steel) are molybdenum-containing stainless steel.
The molybdenum content in the 3 317 stainless steel tube is slightly higher than that of the 316 stainless steel tube. Due to the molybdenum content in the steel, the overall performance of the steel is better than that of the 310 and 304 stainless steels. Under high temperature conditions, the sulfuric acid concentration is lower than 15% and higher than 85%. At the time, 316 stainless steel has a wide range of uses.
The 4 316 stainless steel pipe also has good resistance to chloride attack and is therefore commonly used in the marine environment.
5 Corrosion resistance 6 Corrosion resistance is superior to 304 stainless steel pipes and has good corrosion resistance in the production of pulp and paper.
7 And 316 stainless steel is also resistant to the erosion of the ocean and the erosive industrial atmosphere. With intermittent use at temperatures below 1600°C and continuous use below 1700°C, 316 stainless steel tubes have good oxidation resistance.
8 In the range of 800-1575 degrees, it is best not to continuously apply 316 stainless steel, but when the 316 stainless steel is continuously used outside this temperature range, the stainless steel has good heat resistance.
9 316L stainless steel has better carbide precipitation resistance than 316 stainless steel and can use the above temperature range.
Heat Treatment 10 Annealing is performed at a temperature in the range of 1850-2050C, followed by rapid annealing, followed by rapid cooling.
11 316 stainless steel cannot be hardened by heat treatment.
12 Welding 13 All standard welding methods can be used for welding. Welding can be based on the use of 316Cb, 316L or 309Cb stainless steel filler rods or electrodes for welding. In order to obtain the best corrosion resistance, the welded section of 316 stainless steel needs post-weld annealing. If 316L stainless steel is used, post-weld annealing is not required.
14 Typical applications for pulp and papermaking equipment Heat exchangers, dyeing equipment, film processing equipment, pipelines, exterior materials for buildings in coastal areas Production of stainless steel seamless tubes a. Round steel preparation; b. Heating; c. Hot rolling piercing; d. Cut the head; e. Pickling; f. Grinding; g. Lubrication; h. Cold rolling processing; i. Degreasing; j. Solution heat treatment; k. Straightening; l. Cut tube; m. Pickling; n. Product testing.
316L stainless steel management theory weight formula: (OD - wall thickness) × wall thickness × 0.02513 = KG / M
316L stainless steel pipe is a kind of hollow long round steel, widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation and other industrial transmission pipelines and mechanical structural components. In addition, when the bending and the torsional strength are the same, the weight is lighter, so it is also widely used for manufacturing mechanical parts and engineering structures. Also used to produce a variety of conventional weapons, barrels, shells and so on.