| Model NO. | welded pipe |
| Type | Seamless |
| Technique | Cold Drawn |
| Material | Alloy Steel |
| Surface Treatment | Polished |
| Usage | Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose |
| Section Shape | Round |
| Processing Technic | Cold-Rolled or Clod Draw |
| Delivery Status | Annealing |
| Surface | Bright Tube, Pickling Passivation, Polish |
| Experience | Over 30years |
| Wall Thickness | 0.2--3.5mm |
| Max Length | 18m |
| Material Grade | Duplex Steel /Stainless Steel/Titanium |
| Grade | Nickel Alloy Steel |
| Transport Package | Plywood Pallet/Case |
| Specification | OD 2--38.1mm |
| Trademark | HS |
| Origin | China |
| HS Code | 7304419000 |
| Production Capacity | 3800 Tons/Year |
Welded 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
T.W:0.6~60mm
WHY YOU CHOOSE HUASHANG STEEL?
1.Provides you with cost effective products and professional services.make you No.1 in the market
2.One-stop stainless steel pipe product procurement and transportation solutions.
3.15 years of stainless steel pipe production and sales service experience.
4.Regardless of product quality , price service, or financial strength , HUASHNAG is your best and most secure partner.
How Can We Service Our Customers?
1.Video Call Or Video Meeting Mill Introduction
Visit the factory's real scene online to know the scale and strength, without spending time or financial costs
2.Professional Remote Technical Guidance
Regardless of pre-sales,during sales,or after sales, if you encounter any technical difficulties, we can contact engineers and provide solutions immediately.
If any defect is found in material and that cant match the standard . Free replacement will be done immediately.
3. Accept Third-party Inspection
As long as you need third-party inspection, such as SGS/TUV/BV/DNV-LG/LR/ABS , we can cooperate with factory inspection to ensure the excellence of our products and services.
4.Door to Door Shipment
Fully cooperate with the customer's delivery time ,and provide seamless transportation from the origin to the destination,simplifying your logistics process.
