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2023-11-09Product News
201 Stainless Steel Welded Pipe Welding Method
201 stainless steel welded pipe is normally produced from 201 stainless steel stripes by welding, including round,square and rectangular shape. The outer surface of 201 stainless steel welded pipe is normally mirror polished. And if customer needed, we - United Steel Industry can polish both inside and outside of the pipes. This article will talk about 201 stainless steel welded pipe welding method.
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2023-11-08Product News
DIN 2391 Cold Drawn Seamless Steel Pipe
The DIN 2391 standard specifies seamless steel pipes for mechanical and automotive applications. DIN 2391 seamless steel pipe has high precision, good surface quality, good straightness and excellent economy. Therefore, DIN 2391 seamless steel pipe is widely used in the assembly of anatomical parts and mechanical parts. In addition, manufacturing DIN 2391 cold-drawn steel pipes can improve material utilization, save materials and processing hours, and simplify the manufacturing process. Today, let’s explore further DIN 2391 cold drawn seamless steel pipe.
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2023-11-08Product News
Introduction To ASTM A234 WPB Pipe Fittings
ASTM A234 serves as the standard guideline for carbon and alloy steel fittings, both forged and available in both seamless and welded variants. These fittings are extensively employed in the construction of pressure pipes and vessels, catering to applications in environments with moderate to high temperatures. Among the various material grades, WPB stands out as the most prevalent choice for pipes subjected to medium to high-temperature conditions. The designation is significant: 'W' signifies weldable, 'P' designates pressure, and 'B' indicates the minimum yield strength. The A234 WPB pipe fittings encompass a range of components, such as elbows, bends, tees, reducers, end caps, crosses, lap stubs, and pup joints.
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2023-11-08Product News
ASTM A213 T22 Alloy Steel Pipe
The ASTM A213 T22 standard encompasses seamless tubes made from ferritic and austenitic steel, designed for use in boilers, superheaters, and heat exchangers. These tubes come in designated grades such as T5, T11, T22, T91, and more. Grade T22 steel belongs to the category of 2.25Cr-1Mo low alloy steel, offering excellent thermal strength, superior oxidation resistance, resistance to hydrogen-induced corrosion, and strong welding capabilities. It finds widespread applications in high-temperature equipment, including but not limited to petrochemical installations, nuclear power facilities, and boiler systems within power plants. Today, we'll delve deeper into the attributes and uses of ASTM A213 T22 alloy steel pipes.
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2023-11-07Product News
Quality Evaluation Process Of ERW Steel Pipes
ERW (Electric Resistance Welded) steel pipe is made from steel coils or plates with welds running parallel to the pipe. The quality evaluation process for ERW steel pipes typically involves multiple steps to ensure that these pipes meet specifications and standards and are suitable for their intended use. The following is the general ERW steel pipe quality evaluation process.
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2023-11-07Product News
ASTM A135 Grade A And Grade B ERW Steel Pipe
ASTM A135 is a standard issued by the American Society for Testing and Materials (ASTM) that specifies the requirements for welded carbon steel pipes, specifically electric resistance welded (ERW) welded steel pipes. ASTM A135 ERW steel pipe covers two grades, Grade A and Grade B, which are mainly used to transport gas, steam, water or other liquids, especially suitable for fire sprinkler pipes. Continue reading to learn more about ASTM A135 Grade A and Grade B ERW steel pipe.
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2023-11-06Product News
ASTM A672 Carbon Steel Welded Steel Pipes
ASTM A672 Pipe is the standard specification for electric fusion welded steel pipe for medium temperature and high pressure applications. Pipes are widely used in oil and gas, power plants, boilers, ships and other industries due to their durability, corrosion resistance and dimensional accuracy. In this article, United Steel Industry will introduce you to the relevant content of ASTM A672 carbon steel welded steel pipe.
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2023-11-06Product News
Featured Grades P11 P22 P91 of ASTM A335 Alloy Steel Pipes
ASTM A335 pipe(also known as chrome moly pipe) is a seamless ferritic alloy steel pipe for high temperature service，which is popular in grades P5, P9, P11, P22, and P91. ASTM A335 alloy steel pipes have strong corrosion resistance, high tensile strength, high temperature strength and high cost-effectiveness. The most common use of featured grades P11, P22, and P91 of ASTM A335 alloy steel pipe is in the power industry and petro-chemical plants. How much do you know about ASTM A335 pipe? Continue reading to learn more.
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2023-11-06Product News
AISI 4140 Alloy Steel Pipe
AISI 4140 alloy is a low steel alloy whose chemical composition includes chromium, molybdenum and manganese. Its chemical composition contains manganese, which increases the toughness of AISI 4140 pipe, while chromium and molybdenum impart ductility. Other properties of this alloy grade include hardenability and high tensile strength, with a value of 655 MPa. AISI 4140 pipe has high impact resistance, high fatigue strength, excellent torsional strength, excellent toughness and very good wear resistance. Today, we will briefly introduce 4140 alloy steel pipe in this article.
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2023-11-03Product News
Thermal Deformation Method of LSAW Steel Pipe
Longitudinal Submerged Arc Welded (LSAW) steel pipes are subject to thermal deformation during the welding process. Thermal deformation can result in shape distortions, residual stresses, and other issues if not properly controlled. To manage thermal deformation in LSAW steel pipe production, several methods are used.
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2023-11-03Product News
Methods to SSAW Steel Pipe Corrosion Control
SSAW (Spiral Submerged Arc Welded) steel pipes are commonly used in various industries, including oil and gas, water transportation, and construction. Corrosion control is essential to ensure the longevity and performance of these pipes. Here are several methods to control corrosion in SSAW steel pipes.
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2023-11-03Product News
Oil Casing pipe Thread Defects
Thread defects in oil casing pipes can lead to serious issues in oil and gas operations, including leaks, structural weaknesses, and difficulties in assembling and disassembling equipment. These defects can result from various factors, including manufacturing processes, handling, and environmental conditions. United Steel Industry will talk about some common thread defects in oil casing pipes in this article.
