Steel Knowledge

Sourcing EN 10255 Steel Pipes: Technical Factors Beyond Price

When evaluating steel pipes for low-pressure gas, water supply, or fire sprinkler networks, the EN 10255 standard is a universal reference on almost every technical inquiry. For procurement professionals, it is common practice to compare quotations based primarily on the per-ton price. However, i... Read More

1550mm Large SHS/RHS Procurement| Yuantai

Heavy Duty Structural Steel Tubing for Modern Megaprojects In international infrastructure development, global structural steel tubing suppliers face surging demands for larger profiles. As large-scale projects like high-rise buildings, stadium structures, and offshore wind foundations continue t... Read More

EN 10210 S460NH: The Expert’s Guide to Structural Hollow Sections

NAVIGATE: 1. Grade Decode 2. Tech Specs 3. Welding 4. Buyer Alert 5. Tech FAQ This guide serves as a technical reference for S460NH carbon steel structural hollow sections (SHS, RHS, and CHS) manufactured under the EN 10210 standard. Important Note: S460NH is a high-strength, normalized s... Read More

ASTM A53 Grade B Pipe: Spec Guide & Weight Chart

In the competitive world of B2B steel procurement, selecting between ASTM A53 Grade A and Grade B isn’t just a technicality—it’s a decision that impacts your project’s safety margins and your total landing cost. As a leading manufacturer at Tianjin Yuantai Derun Group, we’ve seen how a slig... Read More

API 5L Technical Breakdown: Grades, PSL1 vs. PSL2

In the pipeline industry, API 5L is the standard that keeps everything together. But if you look closely at the spec, it’s not a “one size fits all” document. Choosing between a API 5L Grade B and an API 5L X70, or deciding if a project actually requires PSL2, is where the engineering... Read More

Square & Rectangular Steel Tube Weight and Volume Calculator

  Exclusive Formula by Yuantai Derun: The calculation formulas used in this tool are derived and refined by Yuantai Derun Group through extensive manufacturing data analysis and rigorous engineering derivation. Unlike generic calculators, our optimized algorithm ensures minimal error margin... Read More

14 Pipe Connection Methods: How Many Do You Really Know?

  Quick Navigation 1. Flange Connection 2. Threaded Connection 3. Butt Welding 4. Socket Connection 5. Socket Welding 6. Grooved Connection 7. Metal Clamp Connection 8. Ferrule / Compression Connection 9. Press-fit Connection 10. Hot-Melt Connection 11. Electrofusion Connection 12. Heat-Shrinka... Read More

High Strength Steel Guide: From S355 to S960 Grades

In the world of structural engineering, moving beyond standard carbon steel is no longer a luxury—it is a necessity for performance and sustainability. High Strength Steel, or HSS, allows for leaner designs, reduced welding volumes, and significantly lower transportation costs. However, the namin... Read More

Blow vs. Hanging: Choosing the Best HDG Steel Tube

When specifying structural steel hollow sections (SHS/RHS), the distinction between Blow-galvanizing and Hanging-galvanizing is often overlooked. However, for engineers and procurement officers, this choice is the difference between a high-precision component and a heavy-duty industrial asset. ... Read More

Exploring NDT in Steel Pipe Manufacturin

In the high-stakes world of steel manufacturing, a pipe is only as good as its weakest point. Whether it’s a long-distance hydrogen pipeline or the structural skeleton of a skyscraper, the integrity of that steel is non-negotiable. This is where Non-Destructive Testing (NDT) moves from a “c... Read More

Why 500×500 Square Steel Pipes Are Difficult to Produce

   The production of 500 x 500 mm Square Hollow Section (SHS) is a benchmark of industrial capability. While standard structural tubing is a common commodity, these large-scale sections belong to a specialized “heavyweight” class of engineering. The reason many countries lack the... Read More

Hardness Testing of Carbon Steel Pipe: An Expert Guide

In the daily operations of a steel mill or a construction site, hardness testing is far more than a routine check—it’s the fastest way to verify if a pipe is actually fit for purpose. Whether you are inspecting LSAW for a high-pressure line or hollow sections for a stadium frame, the hardness val... Read More
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