Large Diameter 304 Stainless Steel Seamless Pipe Round Tube 304/L/H/Ln 316L/H/Ln/Ti Super Austenitic Stainless Steel Seamless Pipe

Our company has introduced advanced high-speed precision multi-roll mill and bright annealing furnace .High-speed precision multi-roll machine can greatly improve the tube diameter and wall thickness tolerance.The seamless tube diameter tolerance our company produces is up to 0.3%D ,and the wall thickness tolerance we can produce is up to 3%S,which effectively solve the problem of size tolerance of connection of precision steel tubes and cutting sleeves.our company uses advanced bright annealing process by using a closed furnace under the protection of argon and nitrogen to make the surface of seamless tube not exposed to oxygen to produce oxide skin ,which can keep the inside and outside of seamless tube and the original surface of metal bright and clean.During the process of bright annealing ,the furnace temperature will be controlled accurately.The normal furnace temperature will be controlled at up and down 5ºC to make the steel tube annealing evenly and fully insulated ,so that the seamless tubes will have better mechanical performance ,which can be bent and reaming treatment .
In order to ensure the quality of seamless pipes,our seamless factory--YONGSHANG owns automatic heat piercing production line,automatic temperature-controlled natural gas annealing furnace ,precision cold rolled line equipment ,each specification automatic straightener,automatic temperature-controlled cycle picking passivation equipment,semi-
Automatic cold-drawing production equipment and so on,and we also owns a full set inspection/testing equipment including Germany-imported direct-reading spectrometer, ultrasonic fault detector,eddy current flaw detector,hydrostatic test machine,universal testing machine,impact tester,endoscope etc.
What material we can supply ?
Austentic Stainless Steel :304,1.4301,X5CrNi18-10,304L,1.4306 ,S30403,1.4307, 03X18H11,304H,S30415,1.4948,S30409,316L,1.4401,1.4404,1.4435,03X17H14M3,316Ti/08X17H13M2T,S31615,1.4571,S31635 316H
321/08X18T10T,321H/12X18H10T,1.4541,317,317L/03X16H15M3B,1.4449,1.4438,347/08X18H12B,347H,1.4550,1.4961,310,310S/S31008/10X23H18,310H,1.4845,309,309S,309H,1.4833
Super Austenitic Stainless Steel :N08904(904L),1.4539,S31254,S254Mo,1.4547,S30432,S31042, N08367(6Mo),S30803/253Ma
Super Duplex Steel:S31500,S32101,1.4162,S32003,S32304,1.4362,UNS S32304,S31803,S32205,1.4462,S32750,1.4410,2507,S32760 ,1.4501
Nickel Alloy Steel:.Alloy B/ N10001, Alloy B2/N10665, Alloy B3/N10675, Alloy C4/N06455, Alloy C22/N06022, Alloy C276/N10276, Alloy C2000/N06200, Alloy G35/N06035, Alloy G30/N06030, Alloy S/N06635, Alloy N/N10003, Alloy X/N06002, Alloy 188/R30188, Alloy 230/N06230, Alloy 556/R30556...
Alloy 600/ N06600, Alloy 601/N06601, Alloy 617/N06617,
Alloy 625/N06625, Alloy 718/N07718, Alloy X750/N07750, Alloy 800/N08800, Alloy 800H/N08810, Alloy 800HT/N08811, Alloy 825/N08825, Alloy 925/ N09925, Alloy 926/N08926.Alloy 400/ N04400, Alloy K500/N05500w, 254SMO/S31254,174PH, 17-7PH, 15-7PH... Nickel: N4/UNS N02201, N6/UNS N02200...
Nickel:N4/UNS N02201,N6/UNS N02200
Titanium& Titanium Alloy:GR1,GR2,GR3,GR4,GR5,GR7,GR9,GR11,GR12
|
Products Name |
Size Range | Max Length | Processing Technic |
Delivery Status | Standard | Surface | Certificates |
| SEAMLESS TUBE | OD:2-38.1mm* T.W:0.2~3mm |
Max 38M | Cold-rolled or Clod Draw |
Annealing/Bright Annealing |
ASTM B622,ASTM B829, ASTM SB163,ASTM SB165, ASTM SB167,ASTM SB407,ASTM SB423,ASTM SB444,ASTM SB622,ASTM SB668,ASTM SB677,ASTM SB690,ASTM SB729 |
Pickling,Bright Tube,Passivation, Polishing |
ISO9001:2015 ISO14001:2015 ISO45001:2018 TS ,PED97/23/CE European TUV BV ,CCS,LR ABS DNV-GL ,KR |
Company Profile
Zhongzheng Stainless Steel Co., Ltd. was established in 2018 with aregistered capital of 20 million yuan. lt is a manufacturing company thatintegrates the production of special materials, manufacturing andprocessing, sales, and technology development. The company covers anarea of 2,000 square meters and has 200 employees. it has built worldclass stainless steel seamless pipe (hot piercing, cold drawing, cold rollingproduction lines, precision steel pipe production lines, and large
, mediumand small-sized welded pipe production lines. The company has beencommitted to providing high performance, high precision, hightemperature-resistant, high pressure-resistant, and corrosion-resistantsolutions and technical services for industrial equipment pipeline systems.The company specializes in producing a series of steel pipes, pipe fittingsflanges, etc., such as high-temperature (nickel-based) alloys, austeniticduplex steel, urea grade stainless steel, super stainless steel, etc. Thecompany is equipped with an annual production capacity of 5,000 tons ofstainless steel seamless pipe production line, 7,000 tons of welded pipeproduction line, and 500 tons of pipe fittings production line, etc. lt canoroduce stainless steel seamless pipes with diameters ranging from Φ6 toΦ762 and wall thicknesses ranging from 0.5 to 70 mm, stainless steelwelded pipes with diameters ranging from Φ15 to Φ2200 and wallthicknesses ranging from 0.5 to 80 mm, pipe fittings, and various stainlesssteel ingots, round steel, rough pipes, etc., according to customerrequirements and in accordance with standards such as GB, ASTM, etc.

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