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11/05/2026

28-meter Wind Turbine Steel Ships Overseas,Shougang Secures First Order in Southeast Asia

Shougang has successfully delivered 28-meter-long ultra-long wind turbine steel to Southeast Asia, marking the first overseas shipment of such long-length wind turbine steel.

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26/03/2026

Pangang Group successfully produced its first TC4 titanium alloy coil.

Pangang Group Company Limited has successfully produced its first TC4 titanium alloy hot-rolled coil, achieving a breakthrough in the mass production of high-end titanium materials. The product will be mainly used in the 3C equipment field.

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17/03/2026

Ansteel's cold-stamped axle housing steel has passed a certain brand of automobile certification.

Ansteel's independently developed ANautoS brand cold-stamped axle housing steel has passed a certain automobile brand certification and obtained batch matching qualification. By breaking through the bottleneck of lightweight technology through material innovation, it has further consolidated its core competitiveness in the high-end automotive steel market.

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11/03/2026

Baotou Steel launches upgrade and renovation project for No. 3 continuous casting machine and construction project for No. 8 large billet continuous casting machine.

Baotou Steel officially launched the upgrade and renovation project of No. 3 continuous casting machine and the construction project of No. 8 large billet continuous casting machine. By eliminating old production lines and building a new high-end special steel billet production capacity of one million tons, the company will promote product structure optimization and strategic transformation, and provide strong support for the high-quality development of the enterprise and the upgrading of the special steel industry chain.

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06/03/2026

Shandong Steel Group Supplied European Standard Steel Profiles to a Key Project in Spain

Recently, Shandong Steel Marketing Department signed an order for nearly 20,000 tons of European standard H-beams with a well-known domestic steel structure company.

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05/03/2026

Ningbo Iron & Steel Named Zhejiang Province's 2025 “Pioneering” Future Factory

Ningbo Iron & Steel has been selected as a 2025 Zhejiang Province “Leading-Type” Future Factory for its achievements in intelligent transformation. By adopting innovative models such as “Scientists + AI,” the company has reduced R&D cycles by 30% and compressed delivery cycles to under 10 days, establishing itself as a benchmark for smart manufacturing in the steel industry.

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04/03/2026

The 3 Million-Ton Steel Project has Successfully Completed its Hot Test!

Recently, exciting news came from the production line: Gaoyi Steel's "1200mm full continuous rolling wide strip steel production line project" successfully completed hot load steelmaking on the first attempt!

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Answers

Which is more corrosion-resistant, tinned steel coil or galvanized steel coil?
The answer to whether tinned steel coil or galvanized steel coil is more corrosion-resistant is not absolute. It depends on whether the coating is intact or damaged.

With intact coating: Galvanized steel coil is very corrosion-resistant; tinned steel coil is extremely corrosion-resistant and has a bright, stable finish, making it practically food-grade safe.

With damaged coating: In galvanized steel coil, the reactive zinc will corrode preferentially, protecting the steel and making it more corrosion-resistant; in tinned steel coil, the steel at the damaged area will corrode faster than before plating, posing a very high risk of corrosion.
Is coiled rebar a type of wire rod or rebar?
Coiled rebar is a type of rebar, referring to ribbed steel bars with spiral transverse ribs on their surface. It also refers to rebar coiled together like a wire rod. Coiled rebar is generally thread-shaped, with diameters of 6.5mm, 8.0mm, 10mm, 12mm, and 14mm, etc. While rebar only comes in diameters of 9-12mm, coiled rebar can be cut to any desired size.

Rebar is hot-rolled ribbed steel bar, mainly used as the framework for reinforced concrete building components. It requires certain mechanical strength, bending deformation performance, and weldability. The raw material for producing rebar is carbon structural steel or low-alloy structural steel that has undergone refining and smelting. The finished rebar is delivered in hot-rolled, normalized, or hot-rolled condition. It is generally in straight bar form.

Wire rod is the type of hot-rolled steel with the smallest cross-sectional area. Wire rod is delivered in coils, hence the name "coiled bar." Wire rod is generally round, with diameters typically ranging from 5 to 9mm.
What are the commonly used mesh sizes for rebar mesh?
Rebar mesh is a robust reinforcing mesh structure formed by welded links of rebars. Common mesh sizes include: Type A: 20mm*20mm, Type B: 10mm*20mm, Type C: 15mm*20mm, Type D: 10mm*10mm, Type E: 15mm*15mm, and Type F: 10mm*15mm. The diameter of the rebar mesh is typically 4-14mm. The maximum width is 2.4 meters, and the maximum length is 12 meters.
The calculation formula is: Weight of rebar = Length of rebar * Specific gravity of rebar. Therefore, reinforcing mesh can be used to calculate the weight of rebars. The total length of rebars with different diameters multiplied by their respective specific gravity gives the total weight of the rebars, which is actually the theoretical weight.


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