Your Professional Carbon Steel PipeTube Supplier

 

Jiangsu Tisco Equipment Co., Ltd. is a comprehensive valve company integrating manufacturing and trading. We specialize in the production of valves and the processing of stainless steel products, including ball valves, gate valves, butterfly valves, globe valves, as well as pipes, plates, profiles, and stems. In addition, copper, aluminum, titanium, and other alloy steels such as Inconel are also within our product range.

 

 
  • Carbon Steel Welded Tube Gr
    Product Name: Carbon Steel Welded Tube Gr. Material: Q195-A~Q275-A Q195B~Q275B 10# ~75# 16Mn, 5MnV, 09MnV 40Cr, 30CrMnSi, 45Mn2, 40MnB ST37 ST52 1020 1045 A106B etc. Surface: Coated/galvanized/black.
  • Carbon Steel Seamless Pipe
    Product Name: Carbon Steel Seamless Pipe. Material: Q195-A~Q275-A Q195B~Q275B 10# ~75# 16Mn, 5MnV, 09MnV 40Cr, 30CrMnSi, 45Mn2, 40MnB ST37 ST52 1020 1045 A106B etc. Surface: Coated/galvanized/black.
  • Carbon Steel Pipe Coupling
    Product Name: Carbon Steel Pipe Coupling. Material: Q195-A~Q275-A Q195B~Q275B 10# ~75# 16Mn, 5MnV, 09MnV 40Cr, 30CrMnSi, 45Mn2, 40MnB ST37 ST52 1020 1045 A106B etc. Surface: Coated/galvanized/black.
  • Carbon Square Steel Tubes
    Commodity: Carbon Square Steel Tubes. Grade: Structural pipe -- 20# 35# 45# Q345B, 16Mn, Q345B-E, SAE1018, SAE1020, SAE1518, SAE1045. Liquid pipe -- 20# q295b-e, q345b-e. High pressure boiler tube --
 
Why Choose Us
OEM Services
When you submit your requirements, our engineers will provide faster and more comprehensive customized solutions. We offer a wide range of products and provide technical support based on your actual needs, helping you select the most suitable products.
Fast Delivery
We maintain sufficient stock and can arrange fast shipment. A variety of styles is available for you to choose from.
Our Services
We provide 24-hour online service and strictly control quality management from the date the order is placed. We conduct regular product inspections and daily random checks to ensure that every batch of shipped products meets quality standards.

 

Product Description

 

Product Name

Carbon Steel Welded Tube Gr

Material

Q195-A~Q275-A Q195B~Q275B 10# ~75# 16Mn, 5MnV, 09MnV 40Cr, 30CrMnSi, 45Mn2, 40MnB ST37 ST52 1020 1045 A106B etc

Surface

Coated/ galvanized/ black

Technique

Hot rolled/ cold rolled / cold drawn / seamless/ erw

Dimension

OD :5mm-700mm Thickness :0.25mm-75mm

Application

Oil/ gas pipe, aerospace use, machine parts, furnace, geological exploration, acid resistance, bearing

Surface

Coated / galvanized / black

 

Carbon Steel Welded Tube Gr

 

Carbon steel seamless tube is divided into
  • Low carbon steel, the carbon content is less than 0.25%.
  • Medium carbon steel, the carbon content is 0.25%-0.6%.
  • High carbon steel with a carbon content above 0.6%.

 

Surface Finish
 
 

Black Finish

Bare steel surface, suitable for painting or coating.

 
 
 

Galvanized Finish

Coated with zinc for corrosion resistance.

 
 
 

Bevelled Ends

Prepared for welding in pipeline applications.

 

 

Carbon Steel Welded Tube Manufacturing Process
Carbon Steel Welded Tube Gr suppliers
Carbon Steel Seamless Pipe
Carbon Steel Seamless Pipe suppliers
Carbon Steel Seamless Pipe factory

Preparing The Sheets

Before being selected to roll, the stainless steel sheets go through a number of inspections. Trimming them around the edges is the first step in preparing them.

 

Rolling Through Rollers

The desired size is then achieved by running the sheets through many rollers. You can see the sheets evolving into tubular shapes in this stage.

 

Rollers Through The Fitted Welding Machine

The tubular shape must pass through a customised welding equipment in this step. You get precisely rolled tubes by removing the weld beads and scraps from inside these tubular shapes.

 

Welding Process

The grade and application requirements have an impact on tube welding and forming. For the manufacturing of tiny diameter tubes, we employ TIG welding. Steel sheets are coiled and welded inside of a welding machine. The steel sheets are shaped into a coil before entering the machine. The seam between these coils is then welded to create a tube.

 

Electric Resistance Welding (ERW) Process

Tube is made using the Electric Resistance Welding (ERW) technique, which involves cold-forming a flat sheet of steel into a cylindrical shape. The steel is then heated by applying current to either of the cylinder's edges, forcing the edges to bond together firmly without the use of welding filler material.

 

Submerged Arc Welding (SAW) Process

An arc is created between a workpiece and a continuously fed bare wire electrode during the Submerged Arc Welding (SAW) procedure. Additionally, flux is used to create slag, produce protective gases, and provide alloying materials to the weld pool. Gas shielding is not required.

 

Electric Flash Welding Process

A steel sheet being transformed into a cylinder using the electric flash welding process. The edges are heated until they become semi-molten in this instance, and then they are pressed together until molten steel is squeezed out of the junction and forms a bead.

 

Annealing

Metal is heated above the point of re-crystallization and cooled to room temperature during the annealing process. The molecular bonds in metal tighten when it is shaped, making it rigid. The metal is put through an annealing process to regain its ductility.

 

Sinking Process

Tube sinking is a drawing technique that reduces the diameter of tubes. In this drawing technique, a tube is run through a die without the need of a mandrel. Good inner surface quality is not ensured when using a mandrel. The die angel determines the integrity of the outer surface. The die being used produces a uniform surface. A tube can be significantly smaller than it was originally. When cost is a factor, tube sinking is ideal.

 

Inspection and Testing

Before sending our items to our consumers, we conduct inspection procedures to verify their integrity.

 

Testing & Inspection of Carbon Steel Welded Tubes

 

Testing (Destructive, Non Destructive)

Intergranular Corrosion (IGC) Test

Impact Test

Macro Test

Dye Penetrant Test (DP Test)

Flaring Test

Bend Test

Positive Material Identification – PMI Testing

Hydrostatic Test

Pitting Resistance Test

Eddy Current Testing

Micro Test

Radiography Test

Chemical Analysis – Spectro Analysis

Hydrogen-Induced Cracking (HIC) Test

Mechanical Testing Such as Tensile, Elongation, Reduction of Area

Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177

Hardness Test

Ultra Sonic Test (UT)

Flattening Test

 

 

Dimensional tolerances of seamless pipes

 

Type

Sizes

Tolerances

Cold drawn

OD

≤48.3mm

±0.40mm

WT

≥60.3mm

±1%mm

 

FAQ

 

Q: Can we visit your factory ?

A: Warmly welcome once we have your schedule we will pick you up .

Q: Do you have quality control?

A: Yes, we have gained BV, SGS authentication.

Q: Can you arrange the shipment?

A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.

Q: How long is your delivery time?

A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to quantity.

Q: How can we get the offer?

A: Please offer the specification of the product,such as material,size,shape,etc.So we can give the best offer.

Q: Can we get the some samples? Any charges?

A: Yes , we could offer the sample for free charge but do not pay the cost of freight . If you place the order after confirm the sample , we will refund your express freight or deduct it from the order amount.

As one of the leading carbon steel pipe/tube manufacturers and suppliers in China, our products have good reputation in the market. We warmly welcome you to buy high quality carbon steel pipe/tube made in China here from our factory. We also accept customized orders.

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