ASTM A53 standard welded steel pipes (especially ERW electric resistance welded pipes and LSAW longitudinal submerged arc welded pipes) are widely used in various industrial fields such as fluid transportation, structural support, machinery manufacturing, energy engineering, and fire-fighting pipe networks, thanks to their high cost-effectiveness, good weldability, and wide size range. Combining standard parameters and industry application cases, this article will systematically analyze the top five typical uses of ASTM A53 welded steel pipes to help you quickly determine their…

ASTM A53 is generally not recommended as the first choice for "high-pressure, safety-critical" pipelines. It is suitable for low to medium-pressure applications involving steam, water, gas, and structural uses. When the design pressure/temperature is extremely high, or strict requirements are imposed on weld integrity and long-term corrosion resistance, priority should be given to seamless A106, API-5L, or alloy materials, with verification through ASME design calculations. Why This Judgment? Standard Scope: ASTM A53 covers seamless and welded black pipes/hot-dip galvanized pipes,…

Under the ASTM A53 standard, both ERW welded pipes (Type E) and seamless pipes (Type S) can be used for general pressure transmission (of steam, water, gas, and air) and structural applications, with sizes ranging from NPS 1/8 to 26. In conventional engineering projects, ERW pipes are often preferred for their cost-effectiveness and shorter lead times; seamless pipes, on the other hand, are more suitable for scenarios requiring higher medium purity, complex forming, or where concerns about welds exist. Both…

In the industrial, construction, and energy sectors, steel pipes are critical components that serve as the "blood vessels" of systems. Selecting the correct steel pipe specification directly impacts a project’s safety, service life, and cost-effectiveness. Among numerous steel pipe standards, ASTM A53 is one of the most widely used globally. When purchasing ASTM A53 steel pipes, an unavoidable parameter is "Sch" (Schedule)—especially Sch 40 and Sch 80. So, what exactly do Sch 40 and Sch 80 represent? Are they merely…

ASTM A53 is a general-purpose carbon steel round pipe standard, covering manufacturing methods such as seamless (Type S) and Electric Resistance Welded (ERW, Type E). It is applicable to both black pipes and hot-dip galvanized pipes, with a size range of NPS 1/8–26. Grade B features high strength (tensile strength ≥ 415 MPa, yield strength ≥ 240 MPa), while Grade A offers better ductility. For material selection: prioritize Grade B for pressure-bearing or load-bearing needs; prioritize Grade A if processes…

In the steel pipe industry, ASTM A53 pipes are among the most widely used carbon steel pipe standards. Whether in oil and gas systems, water supply and drainage systems, or structural engineering, A53 pipes are widely adopted due to their excellent weldability, strength, and cost-effectiveness. However, many customers often wonder: What exactly is the difference between ASTM A53 Grade A and Grade B? This article will conduct an in-depth analysis from multiple perspectives, including chemical composition, mechanical properties, production processes,…

ASTM A53 is a general-purpose standard for black steel pipes or hot-dip galvanized carbon steel pipes (available as seamless Type S or electric resistance welded (ERW) Type E). It covers a wide size range of NPS 1/8–26, suitable for mechanical and pressure applications, as well as general transportation scenarios such as steam, water, gas, and air. With clear specifications, wide availability, high cost-effectiveness, and weldable/threadable properties, it is often used as the "default option" in engineering procurement. Why is A53…

In the global market of structural steel pipes, two international standards are widely used: EN 10219 and AS/NZS 1163. The former is mainly adopted in Europe and large-scale international projects, while the latter is prevalent in Australia, New Zealand, and surrounding regions. For developers, contractors, and procurement managers, understanding the key differences between these standards helps in selecting the most suitable structural steel pipes for the project. LONGMA, as a professional manufacturer of ERW/LSAW round steel pipes, has in-depth knowledge and…

In steel structure engineering, the selection of steel pipe standards directly affects the safety and economy of a project. The European standard EN 10219 and the American standard ASTM A500 are the two most widely used specifications globally, with significant differences in steel grades, applications, and processes. This article will comprehensively analyze their differences and help you make accurate selections by combining the technical advantages of LONGMA. Steel Grade Comparison: Core Differences in Mechanical Properties   Item EN 10219 ASTM…

In the global construction and infrastructure sector, the selection of steel pipes directly affects the safety, cost, and efficiency of a project. The European standard EN 10219 and the American standard ASTM A252 are two major specifications for structural steel pipes. This article will conduct an in-depth comparison from the perspectives of steel grades, applications, production processes, testing items, and international application cases, and provide accurate selection suggestions combined with the technical advantages of LONGMA. Comparison of Steel Grades Between…

In the global application field of steel pipes, EN 10219 and ASTM A53 are two widely used standards, representing the European standard and the American standard system respectively. They differ significantly in material properties, applications, production processes, testing items, and project adaptability. So, should your engineering project choose EN 10219 or ASTM A53? This article will analyze the differences between these two standards from multiple perspectives and introduce the advantages of choosing us as your long-term partner. Comparison of Steel…

When selecting steel pipes for structural or transportation purposes, EN 10219 and API 5L are two widely adopted international standards. They differ significantly in terms of steel grades, applications, production processes, testing methods, and application fields. So, which standard should your project choose? This article will analyze the differences between EN 10219 and API 5L from multiple perspectives to help you make an appropriate choice. Comparison of Steel Grades   Comparison Items EN 10219 API 5L Common steel grades S235JRH,…

What is EN10219 S235JR hollow section(S235JRH LSAW steel pipe)？ In the field of steel structures, S235JRH longitudinal submerged arc welded (LSAW) steel pipes under the EN10219 standard are widely used cold-formed welded hollow sections. As a typical representative of non-alloy structural steels, they have become the preferred material for many projects due to their stable performance and strict production standards. Chemical Composition and Mechanical Properties of S235JR According to the EN10219 standard, the chemical composition and mechanical properties of S235JR…

What is EN10219 S355J2H hollow Section (S355J2H LSAW steel pipe)？ EN10219 is a standard developed by the European Union for cold-formed welded hollow sections for structural use, which is widely applied worldwide. EN10219 S355J2H is one of the high-strength low-alloy structural steel grades under this standard, featuring excellent toughness, weldability, and impact resistance, making it particularly suitable for structural engineering in low-temperature environments. The following is a detailed explanation of this section from aspects such as standards, performance, and applications.…

What is EN10219 S355J0H hollow section(S355J0H LSAW Steel Pipe)？ In the field of metal structure, submerged arc welding EN10219 S355J0H straight seam pipe, as an important representative of cold-formed welded hollow sections, has become the material of choice in construction, bridge construction and other fields due to its stable mechanical properties and strict manufacturing standards. This paper analyzes the key performance and performance value of S355J0H in detail based on EN10219. Chemical composition and mechanical properties EN10219 S355J0H According to…