Stainless Steel Pipe is a hollow round steel, mainly widely used in petroleum, chemical, medical, food, light industry, machinery and instruments and other industrial transportation pipeline and mechanical components, etc.. In addition, the bending and torsion strength of the same, the weight is light, so it is also widely used in the manufacture of mechanical parts and engineering structure. Also used for production of various conventional weapons, artillery barrel, etc.
Preparation of stainless steel seamless pipe of the production process a. bar; B. heating; C. hot rolling perforation; D. cutting head; e. pickling; F. grinding; g. lubrication; h. cold processing; I. degreasing; J. solid solution heat treatment; K. straightening; L. pipe cutting; M. pickling; n. the finished product inspection.
classification
Stainless steel pipe material for ordinary carbon steel, quality carbon structural steel, alloy structural pipe, alloy steel and bearing steel pipe, stainless steel pipe and to save precious metals and meet the special requirements of double metal composite pipe, coating and coating tube. Stainless steel tube of a wide variety of uses, its technical requirements are different, the production method is also different. The current production of steel pipe diameter range 0.1 - 4500mm, wall thickness range of 0.01 ~ 250mm. In order to distinguish the characteristics, it is usually classified as follows.
Stainless steel pipe according to the production methods are divided into two major categories of seamless tube, and welded tube, seamless steel pipe and as hot-rolled steel pipe, tube cold rolling, cold drawing tube and tube extrusion etc., cold drawing, cold-rolled is secondary processing of steel pipe, welded pipe branch is a straight seam welded pipe and spiral welded pipe.
Photo of our Stainless Pipe:
Production process
Production technology of stainless steel welded pipe:
The raw materials - welding pipe - end repair - polishing -- Inspection (printing) - Packaging - shipment (warehousing) (decorative pipe)
Raw material points - welding pipe heat treatment -- correction - straightening straight - xiu end - pickling and hydraulic pressure test and test (printing) - Packaging - shipment (12.5) (welded pipe industry piping pipe)
Hardness
Stainless steel tubes are commonly used in general, the Vivtorinox three hardness indicators to measure the hardness.
Vickers hardness
Vivtorinox hardness test is a kind of indentation test method, which can be used to measure the hardness of thin metallic materials and surface layer. It has the main advantages of the method of the method of the law of the family and the law of the law, but it is simple and easy to use, but it is not easy to use the method of the Vivtorinox method.
Hardness test
Stainless steel tube inner diameter above 6.0 mm, wall thickness in 13mm following annealing of stainless steel tubing can used to W-B75 type Merriam Webster Hardness Meter, it tests the very fast and easy, suitable for of stainless steel pipes do quick and nondestructive inspection. The inner diameter of the stainless steel tube is larger than 30mm, and the wall thickness is larger than that of 1.2mm stainless steel pipe. The hardness of HRB and HRC is tested by using the hardness tester. Stainless steel tube inner diameter greater than 30mm, wall thickness less than 1.2mm of stainless steel pipe, using the surface of the hardness tester, test HRT or HRN hardness. The inner diameter is less than 0mm, more than 4.8mm of stainless steel pipe, using the tube special for the hardness tester, test HR15T hardness. When the inner diameter of the stainless steel pipe is larger than 26mm, the hardness of the inner wall of the tube can be tested by the tester of the surface of the tube or the surface of the hardness tester.
Stainless Pipe Mild Steel Pipe,Seamless Pipes,Welded Pipes,Stainless Pipe Unisite Group Ltd. , https://www.shipsparts.nl
The product name specification material steel factory/origin price (yuan/ton) is Φ6.5mm higher than yesterday's last month than the previous month Pu line Φ6.5mm Q235 Tangsteel 4770 0 -60 -710 High line Φ6.5mm Q235 Guanggang 5220 0 -130 -580 High Line Φ8mm Q335 Guangzhou Steel 5220 0 -130 -580 Rebar Φ10mm HRB335 Sha Steel 5500 0 -130 -450 Rebar Φ14mm HRB335 Tang Steel 5280 0 -120 -380 Rebar Φ16mm HRB335 Tang Steel 5080 0 -50 -380 Rebar Φ18- 25mm HRB335 Guangzhou Steel 5250 0 0 -330 Rebar Φ18-25mm HRB335 Yufeng 5000 0 -20 -280 Rebar 36-40mm HRB335 Handan Steel 5500 0 -60 -160 Grade III Rebar Φ12mm HRB400 Ma Steel 5340 0 -90 -410 Class III Rebar Φ14mm HRB400 Ma Steel 5340 0 -90 -410 Class III Rebar Φ25mm HRB400 Ma Steel 5240 0 -90 -400 Hot Roll 3.0mm*1250*C Q235 Mei Steel 6050 0 -70 -220 Hot Rolled Roll 3.0mm*1250*C Q235 Handan Steel 6050 0 -70 -220 Hot Roll 3mm*1250*C Q235 Angang 6050 0 -70 -220 Hot Roll 4.75mm*1500*C Q235 Handan Steel 5050 0 -300 - 900 Hot rolled coil 5.75mm*1500*C Q235 Handan Steel 5050 0 -300 -900 Cold rolled coil 1.0mm*1250*C Q195 Masteel 6250 0 -200 -750 Cold rolled coil 1.0mm*1250*C Q195 Kunming Steel 6250 0 -200 -750 Cold Rolled Plate 1.0mm*125 0*2500 Q195 Angang 6450 0 -250 -700 Cold rolled plate 2.0mm*1250*2500 Q195 Angang 6450 0 -250 -700 Cold rolled plate 3.0mm*1250*2500 Q195 Angang 7600 0 -150 -250 Cold rolled coil 1.0mm *1250*C Q195 Angang 6450 0 -250 -650 Color Coil 0.426*1000*C CGCC Panzhihua Steel 8550 0 0 -150 Color Coil 0.426*1000*C SGCC Changzhou Chang Song 8550 0 0 -50 Color Coil 0.476*1000 *C SGCC Changzhou Changsong 8450 0 0 -250 Galvanized coil 0.5*1000*C SGCC Yuhong 7600 0 0 -400 Galvanized coil 1.0*1000*C SGCC Yuhong 7200 0 0 -200 Galvanized coil 0.5mm*1000* CSGCC Shunde Pohang 7550 0 0 -350 Galvanized coil 1.0mm*1000*C SGCC Shunde Pohang 7100 0 0 -250