-
AS 1074 / NZS 1074 steel pipe
AS/NZS 1074 is the Australian and New Zealand standard for general-purpose steel pipes and fittings. Here is an overview of AS 1074 / NZS 1074 steel pipe.
Read More
-
Table of tolerance ASTM A530 / A530M steel pipe
When it comes to the manufacturing and quality assurance of carbon and alloy steel pipes, ASTM A530 / A530M serves as the general specification that governs the dimensional tolerances, surface finish, straightness, and other critical requirements. Whether used for structural purposes, mechanical systems, or pressure piping, steel pipes must meet precise standards to ensure performance, safety, and compatibility. This blog provides a detailed look into the tolerance tables outlined in ASTM A530 / A530M, including ovality, wall thickness, length, and straightness limits.
Read More
-
Requirements for seamless pipe straightness tolerance
Seamless pipes (SMLS) are widely used in industrial applications, and straightness is a key quality parameter. In general, seamless steel pipes are expected to maintain a certain degree of straightness; otherwise, deviations may negatively affect their performance. To ensure consistent quality, national standards have been established to define acceptable straightness criteria for seamless pipes. This article provides a detailed overview of these standards.
Read More
-
What is black steel pipe?
Black steel pipe, also known as "Schedule 40" pipe, is named for its dark appearance, which results from a layer of iron oxide formed during the manufacturing process. It is primarily used for gas transportation, including connecting appliances to their gas supply lines. This article will briefly introduce black steel pipe.
Read More
-
Welding techniques and coating treatment for ASTM A53 SSAW steel pipes
ASTM A53 SSAW (Spiral Submerged Arc Welded) steel pipes are widely used in industries such as oil and gas transportation, water supply systems, and structural engineering due to their excellent strength, durability, and cost-effectiveness. However, to ensure long-term performance and safety, both the welding process and surface coating treatment play a critical role in the pipe's overall quality. In this blog, we’ll explore the key welding techniques applied during the manufacturing of ASTM A53 SSAW steel pipes, and delve into the coating treatments that enhance corrosion resistance, extend service life, and ensure compliance with industry standards.
Read More
-
What are the specifications and dimensions of carbon steel pipes?
As a key industrial material, carbon steel pipe (CS pipe) is widely used across a range of sectors. Depending on the application, different projects require specific specifications and dimensions to meet performance and design needs. Below is an overview of commonly used carbon steel pipe dimensions along with their typical specifications.
Read More
-
What is ASTM A53 SSAW steel pipe?
ASTM A53 SSAW steel pipe is a widely used carbon steel pipe standard designed for low to medium-pressure applications, including water transmission, gas pipelines, structural frameworks, and mechanical systems. Issued by the American Society for Testing and Materials (ASTM), this standard covers both seamless and welded steel pipes, offering versatility across multiple industries. Compared to other standards like ASTM A252 (for piling) and ASTM A139 (for fluid transport), ASTM A53 stands out for its broad applicability in construction, oil & gas, industrial systems, and infrastructure projects. Here ia an overview of ASTM A53 SSAW steel pipes.
Read More
-
Top 5 ASTM A139 SSAW steel pipe manufacturers
When it comes to infrastructure projects, industrial pipelines, and structural applications, selecting the right steel pipe manufacturer can make all the difference. ASTM A139 SSAW (Spiral Submerged Arc Welded) steel pipes are widely used in large-diameter, low-pressure conveyance of water, gas, and structural piling. Their spiral-welded design offers excellent strength, durability, and cost efficiency — but only when produced to high standards. In this blog, we’ve rounded up the top five global manufacturers known for their expertise in producing ASTM A139 SSAW steel pipes in 2025. These companies stand out not only for their production capabilities and product quality, but also for their global certifications, innovative technologies, and reliable supply chains. Let’s dive in and explore who makes the cut.
Read More
-
All about ASTM A139 SSAW steel pipe
ASTM A139 specifies the requirements for spiral welded steel pipes produced by the Electric-Fusion Welding (EFW) process. These pipes are intended for use in low-pressure fluid transportation and structural applications. Common areas of use include water conveyance, drainage systems, structural supports, and general industrial piping. Issued by the American Society for Testing and Materials (ASTM), the A139 standard ensures that the pipes meet stringent criteria for dimensions, mechanical properties, and overall quality. While ASTM A252 focuses on steel pipe piles used for foundation support, ASTM A139 is designed to serve both fluid transmission and structural functions. This guide provides an in-depth look at ASTM A139 SSAW steel pipes.
Read More
-
Overview of ASTM A252 SSAW steel pipe
ASTM A252 is a widely recognized standard issued by the American Society for Testing and Materials (ASTM), covering welded and seamless steel pipes used in structural applications such as piling, foundation supports, and infrastructure development. This specification ensures that the steel pipes meet stringent requirements for mechanical strength, weldability, and long-term durability. Spiral Submerged Arc Welded (SSAW) pipes manufactured under ASTM A252 are especially suited for bearing and casing applications, including bridge foundations, marine piling, and underground structures. The helical weld seam enhances their pressure resistance and load-bearing capacity, offering a cost-effective alternative to seamless pipes without compromising structural integrity. Here is an overview of ASTM A252 SSAW steel pipe.
Read More
English
Español
Tel : +86-18565811709
Email : 
