{"id":9646,"date":"2025-06-12T17:40:14","date_gmt":"2025-06-12T17:40:14","guid":{"rendered":"https:\/\/www.h-metal.ro\/blog\/?p=9646"},"modified":"2025-06-12T17:40:14","modified_gmt":"2025-06-12T17:40:14","slug":"extra-thick-steel-pipes","status":"publish","type":"post","link":"https:\/\/www.h-metal.ro\/blog\/en\/extra-thick-steel-pipes\/","title":{"rendered":"Extra-thick steel pipes for ship launching systems"},"content":{"rendered":"
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H Metal has delivered extra-thick steel <\/strong>pipes that have been used for ship launching systems to shipyards and port infrastructures in Braila, Galati and Tulcea.<\/p>\n\n\n\n

Delivered dimensions:<\/p>\n\n\n\n

390 x 50 mm, S355J2H steel quality.<\/p>\n\n\n\n

244.5 x 20 mm, steel grade S355J2.<\/p>\n\n\n\n

Technical specifications:<\/strong><\/p>\n\n\n\n

S355J2H<\/strong> \u2013 structural steel for welded pipes with excellent strength and toughness characteristics, frequently used in demanding applications.<\/p>\n\n\n\n

S355J2<\/strong> \u2013 structural steel with high mechanical properties, suitable for massive components and dynamic loads.<\/p>\n\n\n\n

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WHY ARE EXTRA-THICK STEEL PIPES \u00d8 390\u00d750 MM AND \u00d8 244\u00d720 MM USED IN SUCH SYSTEMS?<\/h2>\n\n\n\n

They have a resistance to very high loads (the ship can weigh thousands of tons).<\/p>\n\n\n\n

Axial rigidity: important in structures where precision and stability are required.<\/p>\n\n\n\n

Support for bearings, rollers or guides that slide with the ship.<\/p>\n\n\n\n

Hydraulic cylinder components used on launch pads.<\/p>\n\n\n\n

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High mechanical strength<\/strong><\/p>\n\n\n\n

The wall thickness (50 mm and 20 mm) gives exceptional durability to high pressures, shocks and vibrations. Essential features in ship-mounted water launcher systems, where the forces involved can be considerable.<\/p>\n\n\n\n

Steel <\/a>is able to withstand dynamic loads and extreme operating conditions.<\/p>\n\n\n\n

The high thickness allows precise turning, boring and grinding, adapting the pipes to exact requirements (e.g. sealing surfaces, special inner profiles, etc.).<\/p>\n\n\n\n

The naval industry<\/a> has special, very strict requirements for several reasons: operational safety, extreme environmental conditions and the structural responsibility of each component.<\/p>\n\n\n\n

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Steels such as S355J2<\/strong> and S355J2H<\/strong> are often used because they offer good tensile and impact resistance<\/strong>, including at low temperatures (down to -20\u00b0C).<\/p>\n\n\n\n

Components (such as machined pipes) must adhere to exact tolerances<\/strong> to fit perfectly into structural or hydraulic systems used in the marine industry.<\/p>\n\n\n\n

Most naval structures are welded, so the materials must be easy to weld<\/strong> without the appearance of defects (cracks, porosities). S355J2 steel is excellent from this point of view.<\/p>\n\n\n\n

For personalized offers please send us your request to office@h-metal.ro<\/a>.<\/p>\n\n\n\n

We are here to support your naval projects with high quality products.<\/p>\n

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