Cold Rolled Galvanized/Precision/Black/Carbon Steel Seamless Pipes for Boiler and Heat Exchanger ASTM/ASME SA179 SA192

Carbon steel pipes are made of steel ingots or solid round steels through perforation into capillary tubes, which are then hot-rolled, cold-rolled or cold-drawn. Carbon steel pipes are divided into two categories: hot-rolled and cold-rolled (drawn) steel pipes.

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.

In addition to 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, cold-rolled (pulled) carbon steel pipes also include carbon thin-walled steel pipes, alloy thin-walled steel pipes, non-ferrous steel pipes, etc. Rust thin-walled steel pipe, special-shaped steel pipe. The outer diameter of hot-rolled seamless pipes is generally greater than 32mm, and the wall thickness is 2.5-75mm. The outer diameter of cold-rolled seamless pipes can reach 6mm and the wall thickness can reach 0.25mm. The outer diameter of thin-walled pipes can reach 5mm and the wall thickness is less than 0.25mm. Cold rolling has higher dimensional accuracy than hot rolling.

General carbon steel pipe: It is made of 10, 20, 30, 35, 45 and other high-quality carbon steel 16Mn, 5MnV and other low-alloy structural steel or 40Cr, 30CrMnSi, 45Mn2, 40MnB and other alloy steel hot-rolled or cold-rolled. Seamless pipes made of low carbon steel such as 10 and 20 are mainly used for fluid transportation pipelines. 45, 40Cr and other medium carbon steel seamless pipes are used to manufacture mechanical parts, such as the stressed parts of automobiles and tractors. Generally, carbon steel pipes are used to ensure the strength and flattening test. Hot-rolled steel pipes are delivered in a hot-rolled state or heat-treated state; cold-rolled steel pipes are delivered in a heat-treated state.

Export standard package, bundled or be required.
The inner size of container is below:
20ft GP: 5.9m(length) x 2.13m(width) x 2.18m(high)about 24-26CBM
40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high) about 54CBM
40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high) about 68CBM

1. How can I get a quotation from you ?
You can leave us message, and we will reply every message in time . Or we may talk on line by Trademanager . And you can also find our contact information on contact page .

2. Can I get samples before order ?
Yes, of course. Usually our samples are free . we can produce by your samples or technical drawings . We can build the molds and fixtures .

3. What is your delivery time ?
A. The time of delivery is usually around 1 month(1*40FT as usual) ;
B. We can send out in 2 days , if it has stock .

4. What is your payment terms ?
Our usual payment term is 30% deposite, and rest against B/L. L/C is also acceptatble .

5. How can you garantee what I got will be good ?
We are factory with 100% pre-delivery inspection which garantee the quality .
And as golden supplier on Alibaba , Alibaba assurance will make garanteewhich means alibaba will pay your money back in advance , if there is any problem with the products .

6. How do you make our business long-term and good relationship ?
A. We keep good quality and competitive price to ensure our customers benefit ;
B. We respect every customer as our friend and we sincerely do business and make friends with them no matter where they come from