welded carbon Q235 black steel pipe,
astm a36 welded steel pipe, Welded Carbon Steel Pipe, welded steel pipe,

The product name

Welded steel pipe

The product description

Steel Grade:Q195–Q345,S235JR,S275JR,S355JR,GR.B-D,

STK500

Standard:GB/T3091–2001,BS1387–1985,DIN EN10025,EN10219,JIS G3444:2004,ASTMA53 SCH40/80/STD,BS-EN10255-2004

Surface Finish:hot dipped galvanized ,electro galvanized ,black,painted,threaded,socket,engraved.

Outer diameter (inch ):1/2’’—16’’

Thickness (mm):0.6—20.0

Length (m):1—12

The section shape:round

Country of origin:China(Mainland)

Provinces :Tianjin

Application :Structure Pipe

Certificate:CE

Whether the alloy:Non- alloy

Factory :yes

Product display

Trading information

The measuring unit：tons

Fob price:450—690

Minimum order quantity :25tons

Method of payment: L/C,D/A,D/P,T/T,Western Union

MoneyGram

Logistics information

Port :Tianjin

Supply ability:2000tons/month

Packing acked in bundle,suitable for sea transport(by container)

Our company

Our certifications

Customer photo

FAQ

Q: Are you trading company or manufacturer ?

A: We are factory.

Q: What are you main market areas and countries ?

A:  We have extended our sales net to almost all over of the world, such as the Southeast Asia, Australia, America, Canada, Europe, Middle East, 
Africa and many other countries and areas.

Q: Do you provide samples ? How long will the delivery date ?

A: Yes, generally the samples will be sent out immediately by the air express in 3~5 days,if the goods are in stock . Normally ,delivery date will be within 20 days or according to your order .  

Q: What is your terms of payment ?

A: Usually 30% as deposit ,70%before shipment bu T/T. Western union acceptable for small account ,and L/C acceptable for large amount . 

Our Advantages:

Source Manufacturer: We directly manufacture galvanized steel pipes, ensuring competitive pricing and timely delivery.

Proximity to Tianjin Port: Our factory’s strategic location near Tianjin Port facilitates efficient transportation and logistics, reducing lead times and costs for our customers.

High-Quality Materials and Strict Quality Control: We prioritize quality by using premium materials and implementing rigorous quality control measures throughout the manufacturing process, guaranteeing the reliability and durability of our products.

Payment Terms:

Deposit and Balance: We offer flexible payment terms, requiring a 30% deposit upfront with the remaining 70% balance to be settled after receiving the Bill of Lading (BL) copy, providing financial flexibility to our customers.

Irrevocable Letter of Credit (LC): For added security and assurance, we accept 100% at sight Irrevocable Letters of Credit, offering a convenient payment option for international transactions.

Delivery Time:

Our efficient production process enables us to fulfill orders promptly, with a delivery time of within 15-20 days after receiving the deposit, ensuring timely supply to meet project deadlines and requirements.

Certificate:

Our products meet stringent quality standards and are certified by reputable organizations, including CE, ISO, API5L, SGS, U/L, and F/M, demonstrating compliance with international regulations and specifications, and ensuring customer confidence in product quality and performance.

Black steel pipe, named for its black surface, is a type of steel pipe without any anti-corrosive coating. It has a wide range of applications across various fields, including:

1. Transporting Natural Gas and Liquids:

   - Black steel pipes are commonly used for transporting natural gas, liquids, oil, and other non-corrosive fluids due to their high strength and pressure resistance, which allows them to withstand high working pressures and temperatures.

2. Construction and Structural Engineering:

   - In construction and structural engineering, black steel pipes are used to make frameworks, supports, beams, and columns. Their high strength and durability make them essential for building large-span structures and high-rise buildings.

3. Mechanical Manufacturing:

   - Black steel pipes are widely used in the mechanical manufacturing industry for making frames, supports, shafts, rollers, and other components of machinery and equipment.

4. Fire Protection Systems:

   - Black steel pipes are often used in fire protection systems for sprinkler systems and water supply pipes because they can withstand high temperatures and pressures, ensuring normal water supply during a fire.

5. Boilers and High-Pressure Equipment:

   - In boilers, heat exchangers, and high-pressure vessels, black steel pipes are used to transfer high-temperature, high-pressure fluids, maintaining stability and safety under extreme conditions.

6. Electrical Engineering:

   - In electrical engineering, black steel pipes are used for laying power transmission pipelines and cable protection pipes, protecting cables from mechanical damage and environmental influences.

7. Automotive Industry:

   - In the automotive industry, black steel pipes are used to manufacture exhaust pipes, frames, chassis, and other structural components of vehicles.

8. Agriculture and Irrigation:

   - Black steel pipes are used in agricultural irrigation systems due to their durability and corrosion resistance, ensuring long-term stable water supply for irrigation needs.

Advantages of Black Steel Pipes

- Low Cost: The manufacturing cost of black steel pipes is relatively low because they do not require complex anti-corrosion treatments.

- High Strength: Black steel pipes have high strength and load-bearing capacity, allowing them to withstand significant external forces and internal pressures.

- Ease of Connection and Installation: Black steel pipes are relatively easy to connect and install, with common methods including threaded connections, welding, and flanges.

 Considerations

- Anti-Corrosion Treatment: Since black steel pipes are not anti-corrosive, additional anti-corrosion measures are needed in corrosive environments, such as applying rust-proof paint or using anti-corrosion agents.

- Not Suitable for Drinking Water: Black steel pipes are typically not used for transporting drinking water because they can rust internally, potentially affecting water quality.

Overall, black steel pipes are indispensable in various industries due to their excellent mechanical properties and wide range of applications.

Q: Are you a manufacturer?
A: Yes , we are a manufacturer, We have own factory, which is located in TIANJIN,CHINA. We have a leading power in producing and exporting steel pipe,galvanized steel pipe,hollow section,galvanized hollow section etc. We promise that we are what you are looking for.

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 20-25days 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 deducte it from the order amount .

Q: How do you make our business long-term and good relationship ?
A: 1.We keep good quality and competitive price to ensure our customers’ benefit.
2.We respect every customer as our friend and we sincerrly do business and make friends with them, no matter where they come from.

Q: What is your terms of payment ?
A: 30% T/T deposit , 70% balance by T/T or L/C before shippment.