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29/05/2026

FEATURE| Common Misconceptions and Avoidance Methods for Global Buyers Purchasing Round Bars, Rebars, and Wire Rods

This article identifies six common misconceptions and provides targeted strategies for avoiding them.

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30/04/2026

FEATURE| Zinc Coating: The Most Cost-Effective Corrosion Protection for Steel Structures

This article contains engineering technical information on the selection of galvanized coatings for corrosion protection, covering the mechanisms, process comparisons, international standards, thickness testing methods, and selection recommendations based on environmental corrosion levels for hot-dip galvanizing and electro-galvanizing, for reference only.

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30/03/2026

FEATURE|Green Steel Buyers’ Guide: CBAM 2026, Carbon Costs & Low-Carbon Certifications Explained

This article primarily outlines the core framework and cost accounting logic of the CBAM 2026 policy, clarifies the essential differences between terms such as "green steel," "low-carbon emission steel," and "near-zero emission steel," and interprets the "hard currency" status of the EPD (Environmental Product Declaration) in international procurement. It aims to help international buyers see through the fog of "green labels" and make informed procurement decisions in the new era of green trade.

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03/03/2026

FEATURE| Complete Guide to Color Steel Tiles: Structure, Performance, and Comparison

This article comprehensively covers the definition, classification (single-layer panels and sandwich composite panels), model specifications and characteristics of various panel types, performance advantages, and fire safety precautions for color steel tiles (profiled steel sheets). Through a multi-dimensional comparison with colored stone tiles, it elucidates the fundamental differences between the two materials in terms of composition, performance, and applications.

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29/01/2026

FEATURE| Complete List and Selection Reference of Industrial Pipe Fittings

This article comprehensively explores the pivotal role of pipe fittings as the “joints” of piping systems. It provides a detailed explanation of their definition, common types and functions, performance characteristics of different materials, and selection criteria. Furthermore, it analyzes the current industry trends toward high-end, intelligent, and green development.

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29/12/2025

FEATURE| Steel Pipe Coating System Guide: Selection, Application to Delivery Practice

This article comprehensively outlines the importance, technical classification, inspection and transportation essentials, engineering selection methodology, and future trends of steel pipe coatings, serving as a complete technical guide for engineering projects.

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28/11/2025

FEATURE| Corrugated Steel Culvert: The Solution for Cost Reduction and Efficiency Improvement in Infrastructure Engineering

Using corrugated steel culverts instead of traditional concrete culverts for culvert construction offers unparalleled advantages in terms of construction time, cost, and environmental benefits. These trends collectively point to a safer, smarter, and more sustainable infrastructure future.

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Short News

02/06 17:21

< On June 2, the price of bearing steel round bars in Wuxi did not fluctuate significantly. GCr15 (AISI 52100) Nangang Φ16-38mm: 643.37, down 2.96. (USD/ton)

02/06 17:20

< On June 2, the price of stainless steel welded pipe in Wuxi remained stable with a slight increase. 316L common Φ89*4 (pickled) 4451.79, up 29.58. (USD/ton)
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02/06 17:18

< On June 2, the price of alloy structural steel round bar in Tai'an remained stable. 40Cr (ASTM 5140) Laiwu Steel Φ30-119 (hot rolling) 588.64. (USD/ton)

02/06 17:15

< On June 2, the price of stainless steel round bars in Xinghua rose. 304L Xinghuada Φ100mm 2262.87, up 44.37. (USD/ton)
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02/06 17:12

< On June 2, the price of 300 series hot-rolled stainless steel coil fluctuated slightly in Wuxi. 309S/NO.1 TISCO 8.0*1520*C (mill edge) 3593.97, up 14.79; 310S/NO.1 TISCO 3.0*1520*C (mill edge) 5398.35, down 14.79. (USD/ton)
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02/06 17:05

< On June 2, the price of stainless steel strip coil in Foshan remained stable. 304/NO.1 Dingxin 3.0*485-730 (hot rolled, slit edge) 2144.55. (USD/ton)Stainless Steel Strip Coil

Answers

Can hot-dip galvanized steel strip be cleaned?
Cleaning methods for hot-dip galvanized steel strip generally include: alkaline washing, alkaline immersion, electrolytic cleaning, and hot water rinsing. These cleaning methods can control the total amount of residual oil and carbon on the surface of the galvanized steel strip to a very low level. Moreover, the surface of the galvanized steel strip is also ground during cleaning, which to a certain extent improves the adhesion of the steel strip surface. Therefore, cleaning hot-dip galvanized steel strip is essential.
Can wire and coiled rebar be used interchangeably?
While both wire and coiled rebar are common metal materials, they differ significantly in shape and application. Wire is typically straight with a smaller diameter, suitable for binding or securing, while coiled rebar is coiled into a disc with a larger diameter, commonly used in construction or machinery manufacturing. Their materials and strengths may also differ. In most cases, it is not recommended to mix wire and coiled rebar. If mixing is absolutely necessary, first confirm that their materials and strengths are compatible, and ensure that the operating environment will not affect performance. For critical components, it is recommended to use specially designed materials to ensure safety and reliability.
Differences between Cold-rolled round bar and Ordinary Round bar？
1. Cold-drawn round steel (also called cold-drawn round steel, plain round steel) is a high-precision round steel. The material undergoes a "quenching and tempering" process and can be directly used to make shafts without further processing. Ordinary round steel is the common round steel used in construction. It is supplied in a "normalized" heat treatment state, and both its dimensional accuracy and material are of a standard level.

2. Cold-drawn steel allows for local buckling of the cross-section, thus fully utilizing the load-bearing capacity after buckling; hot-rolled steel does not allow for local buckling of the cross-section.

3. The causes of residual stress in hot-rolled and cold-rolled steel are different, resulting in significant differences in their cross-sectional distribution. The residual stress distribution in the cross-section of cold-formed thin-walled steel is bending-type, while the residual stress distribution in the cross-section of hot-rolled or welded steel is membrane-type.

4. Hot-rolled steel has a higher free torsional stiffness than cold-rolled steel, so hot-rolled steel has better torsional resistance than cold-rolled steel.


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