Customized Tolerance ±6% Natural Black Iron Pipe for Industrial Needs

Place of Origin jiangsu
Brand Name carbon steel
Model Number Q195, Q215,Q235,Q345,ST37, A36,45# ,16Mn, SPHC,SGCC,CGCC

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Product Details
Surface Treatment Black Painting, Varnish Coating, Anti-corrosion Oil Commodity Carbon Steel Pipe
Thickness SCH 10 - SCH XXS Section Shape Round
Processing Service Cutting, Bending, Welding, Etc. Din ST33, ST37, ST35.8, ST42, ST45-8, ST52
Specification A36 A53 ASTM A106 Q235B Surface Natural Black
High Light

carbon steel round tube


round carbon steel tube


customized carbon steel pipe

Product Description

Product Description:

Carbon Steel Pipe

Carbon steel pipe is a type of metal pipe that is made from carbon steel, a type of steel alloy that contains carbon as the primary alloying element. It is a popular choice in the construction industry due to its strength, durability, and affordability.


Our carbon steel pipe is produced through a process of hot rolling and cold rolling. Hot rolling is a process of shaping steel at high temperatures, while cold rolling is done at room temperature. This process ensures that our pipes have a smooth and consistent surface, making them suitable for a wide range of applications.


Our carbon steel pipes have a natural black surface, which is the result of the manufacturing process. This surface is corrosion-resistant and does not require any additional treatment, making it ideal for use in various industrial settings.


Our pipes have a tolerance level of ±6%, which means that the actual dimensions of the pipe may vary slightly from the specified dimensions. This tolerance ensures that our pipes can accommodate any slight variations in the manufacturing process, without compromising on their quality.


We offer free samples of our carbon steel pipes, allowing our customers to see the quality of our products before making a purchase. However, these samples need to be returned after ordering to ensure that we have enough stock for all our customers.

Key Features
  • Strong and durable
  • Suitable for industrial use
  • Can withstand high temperatures and pressure
  • Corrosion-resistant surface
  • Available in various sizes and thicknesses
  • Cost-effective
Types of Carbon Steel Pipe

At our company, we offer a variety of carbon steel pipes to cater to different needs and requirements. These include:

  • Welded steel pipe: These pipes are made by welding together two or more pieces of steel. They are sturdy and can withstand high pressure, making them suitable for use in pipelines and other industrial applications.
  • Plain steel pipe: This type of pipe has a smooth surface and is typically used for plumbing and drainage systems.
  • Seamless steel pipe: These pipes are made by piercing a solid steel billet and then rolling it into a hollow tube. They are known for their strength and precision, making them ideal for high-pressure applications.

No matter the type of carbon steel pipe you need, we have the expertise and resources to provide you with high-quality products that meet your specific requirements.

In conclusion, our carbon steel pipes are reliable, durable, and suitable for a wide range of industrial uses. With our stringent quality control measures and commitment to customer satisfaction, you can trust us to deliver the best products for your needs.

Product Description

Spiral Submerged Arc Welded ERW Carbon Steel Spiral Welded Pipe

Seamless Pipe
Seamless Pipe
GB/T8162/T8163 GB5310/6579/9948
ASTM A53/A106/A178/A179/A192/A210/A213/A333/A335/A283/A135/A214/315/A500/A501/A519/A161/A334; API 5L/5CT
JIS G3452/G3454/G3456/G3457/G3458/G3460/3461/3462/3464
DIN 1626/17175/1629-4/2448/2391/17200 SEW680
GOST 8732/8731/3183
Material and Grade
10#, 20#, 16Mn, 20G, 15MoG, 15CrMo, 30CrMo,42Crmo, 27SiMn, 20CrMo
Gr. B/Gr.A/A179/A192/A-1/T11/T12/T22/P1/FP1/T5/4140/4130
ST33,ST37,ST35,ST35.8,ST45,ST52,15Mo3,13CrMo44, 1.0309, 1.0305, 1.0405
10, 20, 35, 45, 20X
Out Diameter
Wall Thickness
Plastic caps
Packing terms
Labeled and bundled together with steel strip
Shipment terms
Containers or bundles by sea,one 20" container can load about 20 tons(5.8meters long),one 40" container can load about
23-25tons(less than 11.8meters long)
Quality Certificate
ISO, API, Mill Test Certificate
Surface Treatment
Black painting/varnished surface,anti-corrosion oil, galvanized or as per required by customer
Hot Rolled/Cold Drawn
Steel grades
Q195, Q235A-B, Q345A-E, 20#, 10#,16Mn, ASTM A36,ASTM A500,
ASTM A53, ASTM 106, SS400, St37, St52, S235JR, S355TRH ect.
GB/T 3091-2001,GB/T13912-2002, BS 1387, ASTM F1083 ect.
Pipe ends
plain, beveled, threaded, socket with holes, with PVC clap/ coupling/ clamp,
or as customers' requirement
liquid delivery (pump well, gas, water), construction pipe, structural
pipe(greenhouse structure, fence post), curtain wall, machinery part ect.
Delivery Time
10days from stock; 15-20days produced according to the qty
Payment Term
T/T or L/C
Price Term
Loading Port
Qingdao port Tianjin port Shanghai Port China

Spiral Submerged Arc Welded ERW Carbon Steel Spiral Welded Pipe


Spiral Submerged Arc Welded ERW Carbon Steel Spiral Welded Pipe

Spiral Submerged Arc Welded ERW Carbon Steel Spiral Welded Pipe
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Company Profile

Spiral Submerged Arc Welded ERW Carbon Steel Spiral Welded Pipeengaged in steel production and sales for many years. It mainly produce and sell pipe materials (stainless steel pipe, seamless pipe, precision pipe, alloy pipe, carbon steel pipe, seamless square rectangular pipe, straight seam welded pipe, spiral welded pipe, galvanized pipe, steel plastic pipe, greenhouse pipe), plate (common plate, cold plate, alloy plate, stainless steel plate, galvanized sheet), profile (flat steel, angle steel, round steel, I-beam, channel steel) and copper alloy, aluminum alloy materials and large-scale comprehensive enterprises.

With a complete and scientific quality management system, it now has 4 domestic advanced cold drawn seamless steel pipe production lines, 4 hot-rolled seamless steel pipe production lines, 30 sets of finishing rolling seamless steel pipe production lines, 1 seamless rectangular tube production line, 2 straight welded pipe production lines, 2 square rectangular pipe production lines, 2 spiral pipe production lines, 1 galvanized pipe production line, which can produce various specifications and materials annually.

The company has business relations with Baosteel, Baotou Steel, Angang, Yegang, Henggang, Pangang, Tiangang, Anyang, WISCO, Shagang, Shangang, Handan steel, Maanshan Iron and Steel Co., Ltd., Masteel, NISCO and so on. The total stock of all kinds of steel is up to 100000 tons. All products are in accordance with the national and European standards.

Spiral Submerged Arc Welded ERW Carbon Steel Spiral Welded Pipe
With 20 years experience of steel industry, we supplied trading companies and domestic market quality steel products. We are dedicated to meeting our customers steel requirements. With our conscientious approach, excellent customer service and utmost customer satisfaction as the guiding force, we believe our company will grow by leaps and bounds.
Spiral Submerged Arc Welded ERW Carbon Steel Spiral Welded Pipe
Packaging & Shipping

Spiral Submerged Arc Welded ERW Carbon Steel Spiral Welded PipeSpiral Submerged Arc Welded ERW Carbon Steel Spiral Welded Pipe


Spiral Submerged Arc Welded ERW Carbon Steel Spiral Welded Pipe

Q:May I have an inspection of your factory?
A:Sure, you're welcome any time.
Q: Can I personalize the product?
A:The minimum order quantity is more than 10 tons, we can meet your personalized requirements.
Q:How I believe you?
A:We consider honest as the life of our company, Besides, there is trade assurance from Alibaba, your order and money will be well guaranteed.
Q:What is your delivery time?
A:We are based on the quantity of products to determine the delivery time, you can consult us for the answer.