Carbon Spiral Welded Steel Pipe:

Divided into two types: hot-rolled and cold-rolled (drawn) steel pipes.

1.Hot-rolled carbon steel pipes are divided into general steel pipes, low- and medium-pressure boiler steel pipes, high-pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes.

2.Cold-rolled (dial) carbon steel pipes are divided into general steel pipes, low- and medium-pressure boiler steel pipes, high-pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, and other steel pipes, as well as carbon thin-wall steel pipes, alloy thin-wall steel pipes, and stainless steel pipes. Rusty thin-walled steel pipes, special-shaped steel pipes.

The outer diameter of hot-rolled seamless pipe is generally greater than 32mm and the wall thickness is 2.5-75mm, the outer diameter of cold-rolled seamless steel pipe can be up to 6mm, the wall thickness can be up to 0.25mm, the outer diameter of thin-walled pipe can be up to 5mm, and the wall thickness is less than 0.25mm. Cold rolling has higher dimensional accuracy than hot rolling.

Production Process:

Quality Test:

Application:
Seamless steel tube with hollow section, a large number of pipeline used for conveying fluid, such as oil, natural gas, gas, water
and some solid materials pipeline. It is widely used in the manufacture of structural and mechanical parts, such as oil drill
pipe, automobile transmission shaft,bicycle frame and steel scaffolding used in construction.
* Widely used in the mechanical treatment field, petrochemical industry, transport and construction field
* Ordinary structural purposes and mechanic structural purposes, for example in construction field, fulcrum bearing etc;
* The transportation of fluids in the projects and big equipment, such as transport of water, oil, gas etc
* Can be used in low and medium pressure boiler for the transportation of fluids, for example steam tube, big smoke tube, small smoke tube, generating tube etc.

15 Years Experience of Design,Manufacturer and saling steel.We have long-term trading partners in many countries, please believe that choosing us will not let you down.

-----Stainless Steel Products(Sheet/Bar/Tube/Coil)
-----Carbon Steel Products(Sheet/Bar/Tube/Coil)
-----Galvanized Steel Products(Sheet/Tube/Coil)
-----Ductile Iron Pipes
-----Alumiunum and Aluminum Scrap Products(Sheet/Bar/Tube/Coil)
-----Copper and Copper Scrap Products(Sheet/Bar/Tube/Coil)
-----PPGI/PPGL Coil/Sheet/Roofing Sheet

If you want to know much more the information about it, please click here!

Shandong Runhai Steel Co.,Ltd.:
Located in Jinan city, Shandong Province, with a registered capital of 51.17 million yuan. Is a set of domestic trade, foreign trade in one of the professional steel sales company. Our hot sale items including stainless steel plate/tube/coil, carbon steel plate/tube/coil,Galvanized steel plate/tube/coil, Aluminum sheet/coil /tube,PPGI/PPGL,copper plate/tube and aluminum plate/tube, Pre painted steel coils,Roofing sheet,H I U Angle Beam,Deformed Bar&Round Bar, iron wire etc.The products are widely used in chemical, pharmaceutical, electric power, railway, automobile, paper making and construction engineering.

The company has long-term and close trade relations with shandong Iron and Steel, Tangshan Iron and Steel, Handan Iron and Steel,Jinxi iron and steel and other well-known domestic steel companies.The company has advanced WMS, CRM management system, to ensure that our customers in the whole process of product consulting, procurement, ordering, use without worry!
Over the years, the company has won the trust of our customers with high-quality products,first-class service and ultra-low price. Favored by the majority of customers, products are exported to all over the world! Thanks for the support of old and new customers, Runhai people will work harder and make progress, and return more customers with better and more efficient service! We have set up a central warehouse in Tai 'an, Shandong Province, China, with dozens of processing lines and sufficient inventory.We can provide you with the shortest supply cycle on the basis of quality and quantity; At the same time, our company has nearly dozens of experienced technical consulting team. In order for you to choose the rightproduct model, we have established a first-class marketing team and first-class efficiency and service!

Certification:

Exhibition

Customer Visit

Packing&Loading:
       Normally packed in bundles with strong metal strips;
       Bare or with woven bag or pupple film, or put in wooden crate;
       If not in bunles, we put pipe in pipe or single pipe,
       If pipe length ≤ 5.8m, loaded in 20' container,
       If pipe length ≤ 11.8m, loaded in 40' container,
       If pipe length > 11.8m, load on board by bulk FILO Terms

1. Who We Are?

We are based in Shandong, China, start from 2021,sell to Southeast Asia(20.00%),North America(15.31%),Africa(13.00%),South
America(11.27%),Eastern Europe(10.31%),South Asia(10.00%),Oceania(5.00%),Central America(5.00%),Southern Europe(3.11%),Western
Europe(3.00%),Mid East(1.00%),Eastern Asia(1.00%),Northern Europe(1.00%),Domestic Market(1.00%). There are total about 5-10 people in our office.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3. What services can we provide?
Accepted Delivery Terms: FOB,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow; Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian