| Standard ： API SPEC 5L|
Application API SPEC 5L Line Pipe ： It is used for conveying gas,water,and petroleum of both the oil and natural gas industries.
Product Specification Level
Yield Strength (min), Mpa
Tensile Strength(min), Mpa
L210 or A
L245 or B
L290 or x42
L320 or X46
L360 or X52
L390 or X56
L415 or X60
L290R or X42R
L245N or BN
L290N or X42N
L320N or X46N
L360N or X52N
L390N or X56N
L415N or X60N
Nominal Diameter Range
Outside diameters Rang(mm)
Three layers polyethylene
Inside layer: epoxy(Green)
Outside layer：polyethylene (Black)
Two layers polyethylene
Inside layer: adhesive
Two layers epoxy
Inside layer: epoxy(Green)
Outside layer：intensity epoxy(sage green)
Three layers polypropylene
Inside layer: epoxy(Green)
- Q:What is the single length of galvanized steel pipe?
- The single length of galvanized pipe is 6 meters. The length of galvanized seamless steel tube is uncertain, depending on the length of seamless steel tube.
- Q:Heating system DN40 and DN32 welded steel pipe how to connect?
- Welding: AC arc welding machine welding. Mode 1: apply to the medium of non demanding piping, DN40 steel pipe necking and DN32 steel pipe butt welding, or directly DN32 steel pipe into the DN40 internal welding. 2: the pipeline requirements apply to the inner wall of smooth transition, reducing short circuit welding for DN40x32 suppression of this mechanism are used for connection pipe seamless steel pipe high pressure pipeline connection, no special requirements, not commonly used welded steel pipe. Connection of mechanism fittings is not only costly, but not necessary unless special requirements are required!
- Q:What type of steel pipe dance is used in general?
- According to international competition practice, the standard size of steel tube is 40 mm or 45 mm in diameter, and the 45mm is usually used. The height of the steel pipe is not less than 3.3 meters and not higher than 4 meters.
- Q:What's the difference between hot dip galvanizing and cold galvanizing? Which kind of galvanizing method is good?
- Cold galvanizing refers to the zinc plating, the coating is thinner, corrosion resistance is slightly worse, variable color. Environmental pollution.Hot dip galvanized by molten zinc ingots, the coating thickness can be adjusted, good corrosion resistance, and subsequent passivation, can be used for outdoor rust, long service life, some up to 20 years.
- Q:Is there a weld on the outer wall of seamless steel tube?
- Seamless steel pipe's inner wall, outer wall, section, cross section can not see the weld seam. Because seamless steel pipe is a molding product, no late roll pressure, welding and other processes. No section, inner wall, outer wall or section, as long as there is weld, it is not seamless steel tube. The inner wall can not see the outer wall of welding seam, but it can be seen that the weld products are fake or polished goods. Some products can not be seen without friction and have weld seams on the outside wall. They are seamless treated steel tubes and are polished goods. The price is much different from the real seamless steel tube. Some bad wounding, confusing concepts, earn illegal profits.
- Q:How to make the internal tooth of the steel pipe?
- Cylindrical thread can be used, if the tube is too long, you may consider a short tube with thread, and then welded to the long tube. Taper thread is more difficult to use than ordinary vehicle, and the tap is generally considered. The tap can be clamped on the tailstock.
- Q:What are the uses of seamless steel tubes?
- Compared withsteel and roundsteelinsolid, flexural torsional strength in the same time, the weight is light, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, the bicycle frame and steel construction with scaffold with steel pipe manufacturing ring parts can be improved the utilization rate of materials, simplify the manufacturing process, material saving and working hours, such as rolling bearing ring, Jack and so on, has been widely used in steel pipe manufacturing.
- Q:Does seamless steel tube have a bend of 135 degrees?
- In engineering, it is usually marked as "45 elbow" and has no "135" mark. The angle of the elbow is acute, so there will be no more than 90 degrees elbow.
- Q:Steel pipe is particularly long, how to clean the inner wall of the pipe so that it can be thoroughly cleaned
- High cleanliness requirements for ultrasonic cleaningUltrasonic cleaning principle: the pressure change of ultrasonic wave propagation in the liquid in the liquid cavitation phenomenon strongly, per second produced millions of tiny gas bubbles, these bubbles rapidly in large pressure under the action of not following the violent explosion, impact force and produce strong suction, enough to make the stubborn dirt quickly stripped.
- Q:Is the same specification seamless steel pipe more expensive than welded pipe?
- Welded steel pipe refers to the use of steel or steel plate bending deformation into a round, square and other shapes after welding into the surface of the joint of the steel pipe. The blank used in welded steel pipe is steel or strip steel.
The company's main products are: the low-pressure boiler seamless steel pipe, oil casing seamless pipe, ship seamless steel tubes, seamless steel pipe, petroleum cracking, chemical fertilizer equipment, seamless steel tubes, structural seamless steel pipe, seamless steel hollow pumping rod with eight series. According to GB, ASTM, APL5L, AP15CT, DIH, JIS and other standard production seamless steel tubes.
1. Manufacturer Overview
|Annual Output Value
||Above 30 milionrmb
||Germany; Japan;Korea; America; Brasil; Canada
||ISO9001:2000 ; API
2. Manufacturer Certificates
|a) Certification Name
3. Manufacturer Capability
|No.of Employees in Trade Department
|No. of Production Lines
||OEM Service Offered; Design Service Offered
|Product Price Range