Chinese name: seamless steel pipe English name :Seamless steel tube​,seamless tube. seamless pipe,seamless stee pipe Function to transport fluid :Features no seams on the surface Standing resource material :10 #, 20 #, 35 #, 45 #, 16Mn​ Category: Round and Profiled Rolling Technology

DMH United Steel Industry Co.,Ltd will show you the current seamless pipe standard in china​: 1. the current seamless pipe standard: there are 47 items: 19 GB, 25 HB, 3 special purposes; 45 items on the basis of 2 items.

NDT testing means without prejudice or affect the detected object performance, not hurt at being provided to detect objects within the organization, the use of material internal structural abnormalities or defects heat, sound, light, electricity, magnetism and other reactions caused by changes to physical or chemical methods as a means of using modern technology and equipment, equipment, the specimen surface and the interior of the structure, properties, and defect type state, nature, number, shape, position, size, distribution and change inspection and test methods . Non-destructive testing is an effective tool of industrial development is essential, to a certain extent reflects the level of industrial development of a country, the importance of non-destructive testing has been recognized, the main ray inspection (RT), ultrasonic testing (UT), magnetic particle testing (MT) and liquid penetrant testing (PT) four. There are other NDT methods eddy current testing (ECT), acoustic emission testing (AE), thermal imaging / infrared (TIR), leak testing (LT), the AC field measurement techniques (ACFMT), magnetic flux leakage testing (MFL), far-field test detection (RFT), ultrasonic time of flight diffraction method (TOFD) and the like.

Pipeline bear the effects of the pipeline transmission medium pressure and temperature, but also suffer from a variety of delivery through the heart of the impact of natural and human factors that may occur in the course of leaking or breaking all sorts of accidents. Not only due to leakage of pipeline accidents affect transport caused economic losses, but also pollute the environment. To ensure the safe operation of the pipeline and generate pipeline accident prevention should be the design, construction and operation of three aspects, including design and reasonable choice of pipe is very important. As for the pipe, the strength, toughness and weldability are three basic quality standards. It should also consider the environmental and transport medium for pipe corrosion, corrosion-resistant steel choice.

3PE anticorrosive pipe corrosion of oil pipelines from the inside to the outer three layers of tissue corrosion protection Layer 1: the task of steel pipe layer in accordance with the attempt and customer begging 1 general use of seamless pipe (GB eight 163-78) spiral pipe (GB9711- Eight 8; SY / T503 eight -92) and longitudinal welded pipe (GB3092-93).

3PE seamless steel pipe

As a professional supplier of St52.8 Seamless pipes, DMH United Steel Industry Co.,Ltd will offer St52.8 Seamless Tubes price and St52.8 Seamless Tubes machining service. Our DIN 17175 St52.8 seamless pipes and tubes are used in boiler installations, high-pressure pipelines and tank construction and special machinery for both high temperature and high-pressure devices.

DMH United Steel Industry Co.,Ltd could export ASTM A312 TP321 stainless seamless steel pipe - America standard stainless steel pipe. Because of our professionality, good quality and more competitive in the market, the annual quantity we exported is around 6,000tons. Welcome to visit our company, and you can see our mills production scale and testing equipment. We will provide the best quality, competitive price with reliable stainless steel pipe for all of our customers.

In Stock ERW Steel Pipe Price Dec 29 - Jan 29, 2017

Seamless carbon steel pipe , is made of steel ingot or solid tube perforation made of capillary, and then by hot-rolled, cold-rolled or cold dial made. Seamless carbon steel pipe industry in our country has an important position. According to incomplete statistics, there are about 240 existing seamless carbon steel pipe producers in China and about 250 sets of seamless carbon steel pipe units with an annual capacity of about 4.5 million tons. From caliber, <φ76, accounting for 35%,<φ159-650, accounting for 25%.

ssaw steel pipe sizes

you will learn more about steel pipe schedules.

SCM420 alloy steel pipe harden ability is higher, no temper brittleness, weld ability is quite good, form the cold cracking tendency is small, can be good mability and cold plastic strain. Characteristics and application: SCM420 seamless pipe in conditioning or carburizing and quenching condition, used in the manufacture of the corrosive medium and working temperature below 250 ℃, the medium containing hydrogen nitrogen mixture work of high pressure pipe and all kinds of fasteners, the more senior carburized parts, such as gear, shaft, etc.

JIS G 4053 SNCM 439 Seamless Steel Pipes Standard : JIS G 4053 Equivalent material: 40CrNiMoA , 4340 , 817M40 ,816M40 Delivery condition : By heat treatment (normalizing, annealing and high temperature tempering) or heat treatment state delivery, delivery status should be indicated in the contract

As a professional supplier of St52.8 Seamless pipes, DMH United Steel Industry will offer St52.8 Seamless Tubes price and St52.8 Seamless Tubes machining service. Our DIN 17175 St52.8 seamless pipes and tubes are used in boiler installations, high-pressure pipelines and tank construction and special machinery for both high temperature and high-pressure devices.

Drinking water pipe with anti-corrosion spiral steel pipe technology

ASTM A500/ A501 is a standard specification for cold-formed welded and seamless carbon steel structural tubing in round, square and rectangular shapes.

Epoxy coal tar pitch pipe corrosion (three cloth two oil pipe corrosion): Epoxy resin + coal tar pitch + filler made of paint in the steel exterior with glass cloth as a coating made of reinforced coating, the thickness of 0.5 ~ 1.0mm . According to customer-made three cloth two oil four cloth two oil. Epoxy coal tar pitch pipe corrosion (three cloth two oil pipe corrosion) Features: Tough tough fullness, strong adhesion Has excellent chemical resistance Corrosion resistance, excellent water resistance, anti-microbial corrosion Epoxy coal tar primer and epoxy Two types of coal tar finish. The company's epoxy coal tar pitch primer for the solvent-based products; epoxy coal tar topcoats for the series of products, according to the solid content is divided into solvent-free type (GH201) and thick type (GH202) two types, according to the coating The heat-resistant temperature is divided into temperature-resistant type (at 150 ℃, filling W) and standard (used at 100 ℃), for users according to the anti-corrosion engineering practice requirements.

ASTM A213__for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes

ASTM A210__for seamless medium-carbon steel boiler and superheater tubes Delivery Condition: Annealed, Normalized, Normalized and Tempered Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting Application: For high, middle, low pressure boiler and pressure purpose

DMH UNITED STEEL INDUSTRY is a leader in seamless pipe for petroleum casing, oil pipeline, structural seamless pipe and fluid in China and has won many honors over the years. Insulation layer of oil casing selection of aluminum silicate centrifugal cotton composite material (also can choose other insulation materials), thermal insulation effect is good. Oil casing vacuum technology can be used to eliminate the outer wall of the coat pipe electrochemical corrosion caused by moisture, while further enhancing the insulation effect of the pipeline.