1. OD 21MM-1066MM, WT 2MM-60MM
2. certificate: ISO, API
3. Strength: large diameter thick wall seamless pipe
4. BE, PE.
Carbon Steel Seamless Pipes
Random Length: 3.5m-12m, or fixed length 5.8m or as the customer’s requirement.
ASTM A53, ASTM A106, API 5L, DIN 17175, GOST8731/8732, G3457/G3452 etc.
Q235B, 10#,20#,45#, 16Mn, 15MnV.
A53B, A106B, API5L B, A192, A179C, A213-T12, A213-T22, A335-P1, A335-P2, A333
ST37, ST33, ST37-2, ST35.8 ST42 etc.
API certificate and ISO certificate.
Rust remove, black painting, antirust oil, varnish, 3PE, hot-dip galvanized etc.
By bundles, plastic caps or steel caps, woven, wooden cases or as requirement.
Big diameter and thick wall pipes.
Best price with good quality.
The partner you can trust.
Good service and very patient.
Seamless steel pipe
Cr5Mo(P5, STFA25, T5) 15CrMo(P11, P12, STFA22) 13CrMo44 12Cr1MoV P22 (10CrMo 910) T91, P91, P9, T9 Wb36
GB5310-95 GB9948-88 ASTM335/A335M ASTM213/213M
DIN17175-79 JISG3467-88 JISG3458-88
The seamless steel pipe features resistance to high pressure, high/low temperature and corrosion and is used in the industries of petroleum, chemical engineering and electric power as well as boiler
High-pressure boiler pipe
GB5310-95 ASTMA106-99 DIN17175-79
Temperature-resistant seamless steel pipe for high-pressure boiler
High-pressure seamless pipe for petroleum cracking and fertilizer making equipments
20, 12CrMo, 15CrMo
Boiler price for refinery, heat-exchanging pipe, seamless steel pipe for pipeline
20, 16Mn, Q345
Fertilizer making equipment and pipe line
Low and medium pressure boiler pipes
Over-heat pipe for low and medium-pressure boiler, boiling water pipe, locomotive smoke pipe(big and small)
10,20,35,45, 16Mn, Q345B
Carrying gas, water or oil in the industries of petroleum and natural gas
Hydraulic prop pipe
Pipes for ship, boiler and over-heater
FAQ of Seamless Pipe:
①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard, and we take a test on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.
②How about price?
Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.
③Why should you chose us?
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.
Seamless Pipe Images：
- Q:What is the production process of seamless steel tube?
- The delivery status of hot-rolled seamless steel tubes is generally hot-rolled and delivered after heat treatment. Hot rolled seamless steel tube after quality inspection after staff strict hand picked in quality inspection should be carried out after the oil surface, followed by cold drawing experiments, hot rolling process should be carried out after the perforation experiment, if perforated expanding too large to carry out straightening correction. After straightening, the device is sent to the flaw detector by the transfer device to carry out the flaw detection experiment. Finally, the label is attached and the specifications are arranged and placed in the warehouse.
- Q:What is the difference between galvanized iron pipe and galvanized steel pipe? Or called different, in fact, is referred to as galvanized pipe?
- Just name different, all refers to GB/T 3091-2015 "low pressure fluid transport welding pipe" contained in the galvanized pipe.Galvanized pipe means zinc plated, suitable for water, air, heating, steam and gas and other low pressure fluid conveying straight welded steel pipe, longitudinal submerged arc welding (SAWL) steel pipe and spiral seam submerged arc welding (SAWH) steel pipe.
- Q:What does the diameter of a steel pipe project mean?
- Nominal surface meaning can be understood as a public address. It's as if everyone agreed to call something as a "devil", and he was the devil.Don't be confused by the numbers behind the nominal diameter. For example, DN50, this 50 is really close to the outer diameter or inside diameter of the steel tube, but DN50 is only a general model of the caliber of the national standard.
- Q:Which is more load-bearing, the same thickness of steel pipe and steel bar?
- The same length, the same pipe diameter, the same material strength is hollow, the ratio of area of steel (solid), and the cyclical and slender radius smaller than the larger, so the longitudinal stability coefficient is smaller, three factors, two factors are weak in steel reinforced, another factor: strength, they are the same, no doubt, steel reinforced bearing less than.
- Q:What are low-pressure carbon steel tubes?
- Any of various steels that contain less than 2.11% of the mass of carbon but contain no alloying elements. Sometimes referred to as plain carbon steel or carbon steel.Carbon steel, in addition to carbon, usually contains a small amount of silicon, manganese, sulfur and phosphorus.1) according to the use of carbon steel can be divided into carbon structural steel, carbon tool steel and easy to cut structural steel three categories, carbon structural steel is divided into engineering construction steel and machine manufacturing structural steel two kinds;(2) by refining methods can be divided into open hearth steel, converter steel;(3) according to deoxidization methods, they can be divided into boiling steel (F), killed steel (Z), semi killed steel (b) and special killed steel (TZ);(4) according to the carbon content of the steel can be divided into low carbon steel (WC = 0.25%), carbon steel (WC0.25% - 0.6%) and high carbon steel (WC>0.6%);(5) according to the quality of steel, carbon steel can be divided into ordinary carbon steel (phosphorus, sulfur, higher), high quality carbon steel (low phosphorus and sulfur) and high quality steel (lower phosphorus and sulfur) and super quality steel.Description: the carbon content in general carbon steel is higher, the hardness is higher, the strength is higher, but the plasticity is lower.
- Q:Are galvanized steel tubes the same as degaussing steel tubes?
- Also known as galvanized steel pipe, hot galvanized and galvanized two kinds, hot galvanized, zinc coating thickness, with uniform coating, adhesion, and long service life. The cost of galvanizing is low, the surface is not very smooth, and the corrosion resistance of itself is much worse than that of galvanized pipe.
- Q:What is the outer diameter of the steel tube?
- The diameter of a steel pipe refers to the diameter of the steel pipe. The specifications of the steel tube is normal with diameter (diameter and thickness) said, for example 100MM outer diameter and wall thickness of 5MM tube is marked with 100*5.
- Q:How can the immersed pipe pile put steel cage into the steel pipe? Which expert to answer?
- Immersed tube cast-in-place pile is one of the many types of pile foundations in civil engineering. The immersed tube cast-in-place pile is also called the cast-in-place pile. It is the use of piling equipment, with reinforced concrete pile boots (valve type steel pipe pile shoe) into the soil, pile hole, and then put into the steel skeleton and concrete pouring, then pull out the casing, using vibration extubation of concrete compaction, forming pile needed. Using hammer sinking pile equipment, sinking pipe and pulling pipe pile is called hammer sinking pipe filling pile. It is called vibro sinking pipe cast-in-place pile by vibrator, vibration sinking pipe and pipe pulling pile. In order to improve the quality and carrying capacity of piles, the construction techniques of single shot, double play and reverse insertion are often used in immersed tube cast-in-place piles. Single game (also called a extubation): extubation, every increase of 0.5 ~ 1.0m, 5 ~ 10s vibration, then extubation in 0.5 ~ 1.0m, this is repeated until all pull out; complex play: two singles were continuously in the same pile hole, or according to the needs of the local retapping. Construction, should ensure that two times before and after the immersed tube axis coincide, and in the concrete before the initial coagulation; inverted plug method: steel pipe lifting 0.5m, and then plug 0.3m, so repeated until the pull out.
- Q:What steel pipes are buried for outdoor heating pipes? Seamless or welded tube? Are there any rules for specific countries? Can use the seamed tube?
- Where outdoor heating pipes are buried, what steel pipe shall be referenced by the 11.1.2 code for installation of outdoor piping?:This chapter applies to the quality inspection and acceptance of the outdoor heating pipe network installation of the plant and the civil building group (residential area) with the saturation steam pressure not greater than 0.7MPa, and the hot water temperature not exceeding 130 degrees celsius.
- Q:What's the difference between a cracked carbon steel tube and a liquid carbon steel tube?
- Cracking carbon steel pipe higher requirements, the general carbon steel pipe to be normalized, the fluid carbon steel pipe as long as the normal annealing treatment.
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