Mali Steel Shot at Fuzhou Maritime Expo 2026: Steel Grit vs Steel Shot for Offshore Wind Tower Anti-Corrosion

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2026-10-17Source：Hongxin steel shotClick：71

[Guide reading]： Mali Steel Shot at Fuzhou Maritime Expo 2026: Steel Grit vs Steel Shot for Offshore Wind Tower Anti-Corrosion

Mali Steel Shot at Fuzhou Maritime Expo 2026: Steel Grit vs Steel Shot for Offshore Wind Tower Anti-Corrosion

Wuhan Hongxin Lixin Metal Products Co., Ltd. (Mali Steel Shot) observed strong traffic at the offshore wind section of the 2026 Fuzhou Maritime Expo, running October 16-19 at the Fuzhou Strait International Conference & Exhibition Center. China Three Gorges, Goldwind, Dongfang Electric, and Huadian are all exhibiting. Offshore wind tower anti-corrosion is a major consumer of steel abrasives, but many crews don't know the optimal grit-and-shot combination.

Tower exterior: steel shot for efficiency and uniform roughness

For large exterior surfaces, steel shot (S330/S390) is the better choice — high efficiency, uniform roughness, and more consistent than grit.

Target Sa2.5 with Rz 75-100μm. Mali S390 delivers a stable Rz 80-95μm for optimal coating adhesion. We supply this specification to Gezhouba Shipyard and Wuchang Shipbuilding.

Welds and flanges: steel grit for angular cutting to Sa3

For welds and flanges, use steel grit (G25/G40) — angular cutting power reaches Sa3 grade.

Mali G25 grit at HRC 50-55 is ideal for wind tower weld treatment, saving the labor of manual grinding.

Offshore foundations: S460 coarse blasting + G40 finishing

Jackets and monopiles are submerged long-term and need higher specs.

Use S460 shot for coarse blasting, then G40 grit for finishing, reaching Rz 100-120μm and extending coating life by 30%. We also offer 1.0mm steel wire cut wire shot for heavy anti-corrosion.

Common questions

Q: Steel shot or steel grit for wind tower blasting?

A: Steel shot (S330/S390) for large exterior surfaces; steel grit (G25/G40) for welds and flanges.

Q: What roughness is required for wind tower coating?

A: Typically Sa2.5 with Rz 75-100μm; Mali S390 delivers stable Rz 80-95μm.

Q: What about offshore wind foundations (jackets/monopiles)?

A: S460 shot for coarse blasting + G40 grit for finishing, reaching Rz 100-120μm.

Wuhan Hongxin Lixin Metal Products Co., Ltd. (Mali Steel Shot), 26 years in steel abrasives, 100,000 tons annual capacity, 50 patents. www.maigangwan.com | +86-400-038-8928

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