Oilfield casing pipes / carbon seamless steel pipe / oil drilling tubing pipe

About Us

Black 14 inch carbon steel pipe with API 5L Gr.B seamless carbon steel pipe

Oilfield casing pipes / carbon seamless steel pipe / oil drilling tubing pipe

ASTM API 5L X42-X80 oil and gas carbon seamless steel pipe/20-30 inch

ASTM Schedule 40 pipe price cold finished seamless steel pipe per kg API SPEC

ASTM A106 A53 Gr.B ms pipe Cold drawn carbon steel seamless pipe

Oil and gas/building materials/hollow tube/Large Diameter ASTM A106 Gr.B Carbon Seamless Steel Pipe

Our Story

Since beginning operation in 2005, Oilfield casing pipes / carbon seamless steel pipe / oil drilling tubing pipeng Longteng Heat Treatment Material co.,ltd. has been dedicated to providing more than just material supply, We has helped customers reduce costs and improve the bottom line. This approach to partnering with customers has made our Products a leader among steel pipe suppliers and one of the fastest growing companies in China.

Advantages

Registered capital of 147.89 million RMB
200,000 square meters factory
more than 500 employees
Annual production of 150,000 tons of high-strength high-performance heat treatment of steel
100,000 tons of seamless steel pipe tubes.

Mission and Vision
We aim to became one of china’s most potential company. And deliver our products with the best service and supply chain in the world. To reach our goals, we are building the world’s premiere team of piping product experts and providing the opportunity and environment for our team to succeed both personally and professionally.

Main product scope

Seamless steel pipe, high-intensity heat bolts, high strength heat-treated steel rod, high strength heat stirrups, high strength heat-treated steel bolts, hot-rolled seamless steel pipe, prestressed concrete steel and other heat treatment, the product can be widely used in bridges, High-speed railways, highways, tunnels, energy, mining, steel construction, reinforced concrete construction and other fields.

General introduction

The steel for both seamless and welded pipe shall be made by one or more of the following processes: open-hearth, electric furnace, or basic-oxygen. The weld seam of electric-resistance welded pipe in Grade B shall be heat treated after welding. Seamless steel pipe is one of the most important product for iron and steel industry. With the development of industrial technology, the seamless steel pipe become more and more important in defense industry, science technology and economic development

Transportation shipment

20ft GP: 5898mm(Length)x2352mm(Width)x2393mm(High)
40ft GP: 12032mm(Length)x2352mm(Width)x2393mm(High)
40ft HC: 12032mm(Length)x2352mm(Width)x2698mm(High)
20 feet container load 25 tons the pipes whose length is under 5.8m
40 feet container load 25 tons-28tons according to the ship company the pipes whose length is under 11.8m

Production Line

production Line

Production Line

Production process for cold drawn and hot rolled Seamless steel pipe

The steel for both seamless and welded pipe shall be made by one or more of the following processes
Killed steel, with primary melting process being open-hearth, basic-oxygen, or electric-furnace, possibly combined with separate degassing or refining.
Steel cast in ingots or strand cast is permissible.
Hot-finished pipe need not be heat treated.
Cold-drawn pipe shall be heat treated after the final cold draw pass.
The weld seam of electric-resistance welded pipe in Grade B shall be heat treated after welding.

Achieving the ISO 9001:2008 Certification is just one example of our Products’ dedication to quality and continuous improvement. Each employee is responsible for understanding company expectations and adhering to the procedures of our Quality Management System.
Our Products ensures customers receive the material ordered with accurate supporting paperwork. Customers can count on proper documentation, on-time performance and effective follow-up.

Test Report for the product.

Test Report 2

We will continually improves and expands the quantity and quality of our product which exactly meet customers need. We do whatever it takes to make our clients happy.

We will develop long-term commercial and technical partnerships with customers. And we are committed to continual quality improvement of all internal processes. The success of our quality program is affirmed by our strong customer retention rate.

Q: You are manufacturer or trader?
A: we are manufacturer.

Q: Does your company steel pipe price high?
A: No, our production factory produce the goods by self and we export directly, no extra fees added.

Q: What factors have an effect on the price?
A: 1. the market, price rise and fall accompany with the market.
2. the goods grade, material and standard, different material(tolerance, chemical analyze) and standard with different price.
3. the steel pipe size, generally, fixed length is higher than random length, small size is higher than medium size.
4. the weight, actual weight is different to theoretical weight.

Q: How to shipment?
A: 1) Small diameter: Weight >Measurement
a. Length: ≤5.8m, loaded in 20FT Container, Max 27tons
b. Length: ≤11.8m, loaded in 40 FT Container, Max 27tons
c. Length: ≥12m, shipped by bulk vessel. FILO terms

2) Big diameter: Weight a. Size of 20 FT Container(inside:5898*2352*2350mm)
b. Size of 40FT Container(inside:12024*2352*2395mm)

Q: How to packing?
A: Due to steel pipe belong to heavy goods, generally nude packing, strapped by steel strip in bundles or packed by woven bag. If you have special request, such as: plastic cap, black painted, we can help you do.

Q: What is your minimum order?
A: We do not have a minimum order. However, small qty will be waste for the shipping costs.

Q: Do you have inventory?
A: Yes, for normal size steel pipe, generally have in stock.

Q: If we only need our request size, can you offer?
A: Yes, we can customize the size for you.

Q: What's the application?
A: Generally, the carbon seamless steel pipe and alloy seamless steel pipe can divided into steel pipe for machine structural (auto parts, building)purpose and fluid purpose(water, oil, gas). The stainless steel pipe, due to corrosion resistance and high temperature resistance, generally used for ship railing, transport water,oil, chemical industry, architectural decoration , medical treatment, food, light industry, mechanical instrument etc.

Seamless Steel Pipe mills, volume should go through continuous annealing (CAPL unit) to eliminate cold hardening and rolling stress, or batch annealing reach the Oilfield casing pipes / carbon seamless steel pipe / oil drilling tubing pipe mechanical properties of the corresponding standard specifies. Seamless Steel Pipe surface quality, appearance, dimensional accuracy Oilfield casing pipes / carbon seamless steel pipe / oil drilling tubing pipe better than hot-rolled plate, and right-rolled thin product thickness is about 0.18mm, so the majority of users favor.
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Seamless Steel Pipe deep processing of high value-added products. Such as electro-galvanized, hot dip galvanized, electro-galvanized fingerprint resistant, painted steel roll damping composite steel, Oilfield casing pipes / carbon seamless steel pipe / oil drilling tubing pipe laminating steel plates, etc, so that the excellent quality of these products has a beautiful, high resistance to corrosion, has been widely used.