Carbon Steel Pipe

China factory direct sales, support custom production, 15-20 days delivery, with ISO, CE, BV, SGS certification, in line with ASTM, JIS, GB, AISI, DIN, BS, EN and other standards, 1-to-1 after-sales service

Technical Parameter of Carbon Steel Pipe

Carbon Steel Pipe divided into Carbon Steel Welded Pipe and Seamless Steel Pipe.

Seamless carbon steel pipe is a kind of capillary made of steel ingot or solid billet through perforation, and then made by hot rolling, cold rolling or cold drawing. There is no seam around the steel pipe.

Welded steel pipe, also known as welded pipe, is a steel pipe made of steel plate or strip steel after crimping and welding. Large-diameter or thicker welded pipes are generally made of steel billets directly, while small welded pipes and thin-walled welded pipes are generally made of steel strips directly welded. The production process of welded steel pipe is simple, the production efficiency is high, and there are many varieties and specifications.

Grade Level Chemical Composition,% Deoxygenation Method Use
C Mn Si S P
No greater than
Q195 0.06~0.12 0.25~0.50 0.30 0.050 0.045 F、b、Z General bridges, building structures, general mechanical parts, such as screws, nuts, etc.
Q215 A 0.09~0.15 0.25~0.55 0.30 0.050 0.045 F、b、Z
B 0.045
Q235 A 0.14~0. 22 0.30~0.65 0.30 0.050 0.045 F、b、Z
B 0.12~0.20 0.30~0.70 0.045
C ≤ 0.18 0.35~0.80 0.040 0.040 Z
D ≤ 0.17 0.035 0.035 TZ
Q255 A 0.18~0.28 0.40~0.70 0.30 0.050 0.045 F、b、Z It can be used for mechanical parts with large force, such as sprockets, tie rods, etc.
B 0.045
Q275 0.28~0.38 0.50~0.80 0.35 0.050 0.045 b、Z

Classification of Carbon Steel Pipe

Classification according to the form of weld:

Straight seam welded pipe and spiral welded pipe

Classification by production process:

Arc Welded Pipe, Electric Resistance Welded Pipe, High Frequency/Low Frequency Gas Welded Pipe, Furnace Welded Pipe

Classified by section shape:

It can be divided into ordinary carbon steel round steel and high-quality carbon steel round steel.

Classification by wall thickness:

Thin-walled steel pipe, thick-walled steel pipe.

Classification by use:
  • General welded pipe
  • Galvanized welded pipe
  • Oxygen-blown welded pipe
  • Wire casing
  • Metric welded pipe
  • Roller tube
  • Transformer tube
  • Electric welding thin-walled tube
  • Special-shaped pipe
  • Spiral welded pipe

    In addition, there are scaffolding pipes, automobile pipes, deep well pump pipes, Mine fluid conveying welded steel pipe, low pressure fluid conveying galvanized welded steel pipe, belt conveyor idler electric welded steel pipe, etc.

Application of Carbon Steel Pipe

  • Products are widely used in water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction.
  • For liquid transportation: water supply, drainage. For gas transportation: gas, steam, liquefied petroleum gas.
  • For structure: for piling pipe, for bridge; for wharf, road, building structure, etc.





Bridge Formwork

Bridge Formwork



FAQs of Carbon Steel Pipe

The main products are aluminum, aluminum zinc plating, color coating galvanized, galvanized, carbon steel coil, etc.

All products supplied by the company are produced in strict accordance with relevant product standards, and the products are tested by relevant instruments and experimental equipment before they are delivered.

We have advanced steel production equipment, with 15 years of experience in metal manufacturing and sales ,the perfect after-sales service system enables us to become the best choice for many customers.

Free samples are available for your checking and testing. And to get free samples, you need to send us inquiry and tell our salesman your detailed receiving address (including post code) and your DHL/FedEx/UPS account for collecting samples.

The delivery date is within 7-15 days. After confirming the receiving port and order quantity, we will arrange for you to get the best shipping price

Package Delivery of Carbon Steel Pipe

  1. Generally package:Anti-water paper+strapped with min three .
  2. Standard exporting package:Anti-water paper and plastic+covered by iron sheet+ strapped with min three strapping strips.
  3. Excellent package: Anti-water paper and plastic film+ covered by iron sheet+ strapped with min three strapping strips+fixed on the iron or wooden pallets by strapping strips.
Carbon Steel Pipe
The Square Tube
Carbon Steel Pipe

Certificate Show

We will always adhere to the principle “quality first, service supreme, mutual benefit”. In addition, we have attained the ISO, CE, BV, SGS, TUV certifications. We insist on the belief that all products must meet the international standard. We must provide the qualified products for our clients.

Customer Testimonials

We have hundreds of satisfied customers from all over the world. Please review some of our customer testimonials below. We always want to improve – please do submit your feedback, please email us, or give us a call. Thank you.

Factory Show

We are a factory manufacturer,specialized in supplying steel products in Qingdao,China,borders the seaport,so we have convenient export transportation conditions. Our factory can provide 3,000-20,000 tons of stainless steel products per month.

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