DIN 1629 Petroleum Round Hot Rolled Seamless Steel Tube Varnished

Petroleum Round Hot Rolled Seamless Steel Tube St52 DIN1629 / DIN2448 JIS G4051 S20C

Its Applications include transportation of oil,gas or fluid,Construction,Electricity,Machine building industy,Chemical industy,Petroleum,Traffic, etc.

Quick Detail:

Standard: ASTM / DIN / EN / GOST / SAE / JIS etc

Process method: Hot rolled/ Hot expansion/ Cold drawn

Size: (mm)

O.D : 60.3mm-914.4mm

W.T : 3.91mm-59.54mm

Length: 5-12m as per customer's requirements

Material: A53, A106 Grade B, A106 Grade C, Q235, Q345, ASTM A519 37Mn, 34CrMo4.

(10, 20, 30, 35, 45,16Mn, 5MnV, 40Cr, 30CrMnSi, 45Mn2, 40MnB, etc)

Specifications:

Production process of hot rolled tubes :
Hot rolling → heating → piercing → three roller helical rolling, tandem rolling or extrusion → tube knockout → sizing or tube diameter reduction → cooling → semi-finished hot rolled seamless pipe → straightening → water pressure test → labeling → warehousing.

Classifications :
Hot rolled seamless steel tubes can be classified into the common steel pipe, low and medium pressure boiler seamless steel tube, high pressure boiler seamless pipe, stainless steel hot rolled pipe, and more.

Advantages :
Due to our adoption of hot rolling process, the original casting structure of the steel slab for making hot rolled pipe is destroyed. This means that the crystalline grains of steel material are refined, and the defects of the microstructure of steel slab are eliminated, which results in improved mechanical performance and denser microstructure of steel materials along the rolling direction.
Hence, our hot rolled seamless steel pipe features good mechanical property and superior intensity.

Regular Hot Rolled Pipe Sizes:

(Or per customers’ requirements)

Product Photo

Factroy Pictures

Pipe & Tube Processing

Application

Packaging & Shippping

Certificates

FAQ

Q1: ARE YOU FACTORY OR TRADER?
A1: Wuxi Sylaith Special Steel Co.,Ltd is a manufacturer of steel pipe and tube since 2010.

We've gained our Export Right and become an integrated company of industry and trade inorder to satisfy buyer's multi-request on different material and products.

Q2: WHICH MATERIAL/PRODUCTS YOU CAN PROVIDE?
A2: Seamless Stainless Steel Pipe / Tube, Seamless Carbon Stainless Steel Pipe /Tube,Galvanized Steel Tube witn any Shape and Welded pipes can also be available.

Q3: HOW TO GET A SAMPLE?
A3: FREE samples are available for your checking and testing. And to get free samples, you need to send us you detailed receiving address (including post code) and your DHL/FedEx/UPS account for collecting samples, courier cost will be paid in your side.

Q4: CAN YOU PRODUCE THE PRODUCTS ACCORDING TO MY OWN DRAWINGS?
A4: Yes, we can produce the products according to your drawings that will be most satisfy you.

Q5: HOW TO VISIT YOUR FACTORY?
A5: Most of the main cities have flights to Shanghai; you can take flight to Shanghai Putong/Hongqiao International Airport.
If you come from Hongkong, it will take 2 hours by flight (every day 5 flight around noon time)

Wuxi Sylaith Special Steel Co.,Ltd

Since the establishment of our company, Wuxi Sylaith Special Steel has been deeply involved in steel manufacturing and international trade for 12 years, with a total foreign trade sales of US$390 million. We focus on the supply of all categories of carbon steel and stainless steel products, including pipes, plates, bars and coils. With a cost-effective price system and stable international standard quality as our core advantages, our products are exported to more than 20 countries and regions including Europe (UK, Poland, Ukraine), Southeast Asia (Vietnam, Indonesia, Malaysia) and the Middle East (Saudi Arabia, Iran, Turkey, Egypt), and establish long-term strategic cooperation with global customers.

Why choose Wuxi Sylaith Special Steel?

✅ Precise supply: strictly comply with international standards such as ASTM, EN, JIS, and support customized production

✅ Cost optimization: large-scale production + vertical supply chain management, reducing procurement costs for customers by more than 15%

✅ Delivery guarantee: own 30,000-ton storage base, with an annual production capacity of over 500,000 tons, to ensure on-time delivery

✅ Service network: set up local service teams in Europe and Asia, providing 24-hour cross-time zone technical support

We always practice the concept of "customer demand drives production" and help partners improve their market competitiveness by continuously optimizing production processes and logistics systems. We look forward to becoming your trusted steel supply chain partner with the reliable quality of Made in China!

Core products:

• Carbon steel series: API 5L pipeline pipe/cold-rolled precision pipe/hot-rolled steel plate/honed pipe
• Stainless steel series: 430/304/316L coil/plate/welded pipe/seamless pipe

Wuxi Sylaith Special Steel Co.,Ltd adheres to the distribution strategy of multiple varieties, direct supply and nearest matching. In the future the company will, as always adhering to the "customer as the buddha, are proud of the service" business philosophy, adhere to the "create, win-win" spirit of enterprise, adherence to the "first-class service, first-class products, a comprehensive build the company's core competitiveness, to provide the most valuable industry services, is committed to become china's best solution steel sales company.