steel

Hi All, I work on a ship and have noticed this recently. It is a steel bulwark (left side) that has had an aluminium section bolted into it (right section) after fire damage. Joined with stainless steel fasteners. It appears the steel plate is corroding significantly, is it the fasteners...

Hey all, Very rusty nav arch/boatbuilder here working on a personal project to convert a keel stepped mast to deck stepped. I need to calculate the scantlings for a compression post and any other structural components effected, and Im thinking to use rules of thumb rather than engineered...

So I am thinking about a pontoon/barge to transport building materials like wood and concrete to an island. It won't be used in heavy seas, if it's too windy it won't be used. Distance from shore is 8km, in an archipelago. I'm thinking about a couple pontoons about 500mm in diameter, square...

Hey all, any tips for good suppliers of steel plate for smaller steel boat construction. I can't find any AH36 <6mm. Must I chose another option? What are other best options? thank you

I am a welder and pile driver by trade. I recently started buying and refurbishing barges patching sand blasting painting etc to bring them back to life then I resell them. Most of the barges are small 10-14’ wide by 30-40’ long and 3-4’ deep. I would like to start building barges on my own...

I have a 12 meter (42 foot ) dutch steel ketch I am working on (details elsewhere on the site). I have a mast to replace the original sitka spruce mast which was deck stepped (and was setup to pivot / fold down for going through canals I suppose), and I want to replace this with a keel stepped...

Hello, I have posted before about the 42 foot steel hulled sailboat I am refitting / restoring/ rebuilding. I would like to get the community recommendations on 2 part epoxy primer and paint systems people recommend for a steel vessel available in the US (California). Should I use something...

I have to do a pass of sandblasting on the exterior of my (likely corten) steel hull to find and then repair damage via welding. I will be doing this in sections, with some weeks in between sessions. There may be areas I sandblast and leave for a while before I weld it closed. Should I just...

How can I identify if the steel in my boat is corten or not? I want to repair it with the correct steel plates that are the same steel. Thank you.

I am the new owner of a 1956 steel ketch I am starting the restoration on. The hull suffered quite a bit of galvanic corrosion in the form of pit corrosion which have turned into localized holes in several dozen places. One of the zincs is basically brand new, even though it was replaced at the...

I am looking for information on a 1985 George Sutton designed steel schooner, now called “Shanghai Lilly”. I would buy any line drawings or boat plans - thanks randygreenfield@yahoo.com

Hey All, I'm not sure what thread this belongs in, but essentially I have an existing coffin shape fully welded steel plate pontoon in a mining environment. The thing is overloaded on one side because of some piping and we're trying to add overall buoyancy to the system, but particularly on the...

Hi , new to the forum as a member, but very long time lurker here. Previous liveaboard on steel dutch barges in the rivers and canals of mainland Europe. We have owned 4 steel boats and one wood epoxy. Hated the wood epoxy, and love metal boats. We have done long term living and cruising on our...

Hi all, Just a question, is it common to build any FRP superstructure on steel vessels? Would it be a bad idea? Difficult to keep the interface joints water tight? Just wondering. SD

Hi, I have recently got into sailing and ever since I started learning more about this awesome pass-time I have wanted to build my own boat. I also want to start making some bigger passages in the near future, my current boat however, (17' daysailer) is not suitable for blue water conditions...

These videos of large ship construction amaze me, but I was really taken with the part where they have to curve thick steel for the hull (near the end, at about 39:07 minutes) Totally awesome.

I'm exploring the idea of building a steel sailboat. I live in Baltimore, Maryland, and wondered if there's anyone within a hour's drive who I could visit and ask question of concerning their experience building a boat in steel. I think I would prefer an amateur builder or small shop, but if...

Hi. Please forgive what might be a dumb question and any lack of forum etiquette from my ignorance/inexperience. I would like to weld a number of steel rings (fixed on 5mm plate) to a narrowboat hull (6mm thick). It will be above the waterline (freshwater and brackish) but liable to regular...