304/L/H/Ln 316L/H/Ln/Ti Super Austenitic Stainless Steel Seamless Pipe
Basic Info.
Seamless Tube require the precision of size tolerance ,which are mainly used in ships,marine platforms ,bullet train,aerospace equipment and so on for the fine dense card sets connected instrument tube ,hydraulic brake tube, oil well control pipeline,chemical injection pipe and electric heating steam heating tube .
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 PIPE | OD:2-762mm* T.W:0.2~65mm |
Max 38M | Cold-rolled or Clod Draw |
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 ASTM B338/ASME SB338, SB337 ASTM B861/ASME SB861 & DIN17861 |
Pickling Passivation, Polishing |
ISO9001:2015 ISO14001:2015 ISO45001:2018 TS ,PED97/23/CE European TUV BV ,CCS,LR ABS DNV-GL ,KR |
ZHEJIANG ZHONGZHENG STAINLESS STEE MANUFACTURING CO. LTD. is a professional supplier of stainless steel materials, located in Zhejiang, China with high speed of economic development. We are near shanghai port; the traffic is very convenient.The main stainless steel materials are stainless steel plate, pressure vessel stainless steel plate, high temperature boiler plate, corrosion resistant stainless steel plate, stainless steel seamless pipe, stainless steel industrial pipe, stainless steel welded pipe, stainless steel bar, stainless steel pipe and so on.With the aim of "quality first, timely delivery, good faith cooperation, considerate service and common development", the company has set up a good reputation in the industry for providing high quality stainless steel materials and perfect after-sales service.
1. Exceptional Service: We guarantee a response to all inquiries within 12 hours.
2. Certifications: Proudly holding ISO 9001, CE, and SGS certifications.
3. Cost - Effective Quality: Benefit from competitive prices and top - notch quality, as our products are directly sourced from our own factory.
4. Robust Production Capacity: With a monthly output of 20,000 tons, we ensure seamless production.
5. Flexible Payment Terms: We accept various payment methods, including T/T and L/C.
6. Swift Delivery & Standard Export Packaging: Expect quick delivery and products packaged in line with international export standards.
7. Factory - Direct Advantage: Our own factory enables us to offer competitive prices without compromising on quality.
8. Third - Party Testing: We welcome any third - party testing to verify the quality of our products.
9. Expert Team Support: Backed by a professional sales team and a reliable factory.
10.Dedicated to Customization: Your individual specifications are not just accepted-they're the cornerstone of our service. We're committed to delivering on every customized request.
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