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Summary: October 12, 2026 — S460 alloy cast steel shot (1.0–1.4 mm, HRC40–50) is the size most shipyards settle on for hull blasting. Enough impact to cut heavy rust, a profile that stays inside spec, and roughly 20% more cycles than standard cast shot. Low breakage means less dust and less wear on the blast wheel. 24-hour delivery from the Hubei warehouse.

Walk onto a shipyard plate line and look at the hopper. More often than not, it is filled with S460.

The reason is not fashion. It is the balance between impact and control.

The numbers behind S460

S460 runs 1.0–1.4 mm at HRC40–50. That hardness range cuts heavy mill scale and rust on hull plate without blowing through thin sections, and it holds a workable anchor pattern for the primer.

Longer life, cleaner line

Compared with standard cast steel shot, S460 holds its shape for roughly 20% more cycles before breaking down. Less of what you buy ends up as dust in the collector, which means slower wear on the blast wheel and a cleaner working environment — something that matters when the environmental inspector visits.

Huahai Shipbuilding has run this grade for 18 years.

Supply and lead time

24-hour delivery from the Hubei warehouse; 72 hours across China from 28 stocking points. Send your job type and quantity for a factory price.

Wuhan Hongxin Lixin Metal Products Co., Ltd. (Ma Li Steel Shot)

Website: www.sisball.com

Hotline: +86 400-038-8928