Author: "Gunnar Marinethings"

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  Old boat engines

  Posted in: Boat images

  November 17th 2019

  4388 Views 149 Liked

  Additional pictures from the trip to Rindö in September during the maritime museum's open house.

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  Have you also wondered what the difference is between A2, A4 and A5?

  Posted in: About stanless steel

  November 17th 2019

  9119 Views 321 Liked

  Here we will try to clear up the concepts a bit. In everyday speech, stainless steel is referred to as A2 and stainless acid-resistant steel as A4, so A2 stands for stainless and A4 for stainless acid-resistant steel. But unfortunately that does not say everything about what kind of steel we are dealing with. It is also not possible to directly translate into an EN standard*.An A designation can include several types of steel, that designation has a broader meaning. Below is a small table of...

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  Sailboats

  Posted in: Boat images

  November 17th 2019

  2545 Views 89 Liked

  Pictures of sailboats from the Maritime Museum's open house on Rindö. Some real classics with beautiful lines.

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  Rowing boats

  Posted in: Boat images

  November 15th 2019

  1517 Views 45 Liked

  Pictures of various rowing boats that were shown at the maritime museum's open house during September on Rindö.

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  Newsletter from Värmdö MarineThings, April 2021

  Posted in: Newsletter from Värmdö MarineThings

  April 21st 2021

  4802 Views 74 Liked

  You don't forget how you look yourself. It is an important part of self-esteem to know if you are well dressed for every situation on the lake. What would a regatta be without these stylish socks. Maybe with a pair of both fashionable and foot-friendly sandals?

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  A2 och A4 – vad är det vi pratar om?

  Posted in: About stanless steel

  November 17th 2019

  5341 Views 126 Liked

  Vad är skillnaden mellan rostfritt (A2) och rostfritt syrafast (A4)? Vad betyder beteckningarna?A, F och CSkruvar och muttrar brukar delas in i tre olika kategorier; austenitiska (A), ferritiska (F) och martensitiska (C). De kan var och en klassificeras med en siffra mellan 1 och 5 där 5 står för högsta korrosionsskydd och 1 för det lägsta. De vanligaste varianterna är A2 och A4, alltså austenitisk med korrosionsskydd** klass 2 resp 4.50, 70 och 80En annan klassificering som förekomma är...

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  Duplex – stronger than steel!

  Posted in: About stanless steel

  September 25th 2019

  2377 Views 14 Liked

  Duplex steel belongs to the group of stainless and acid-resistant steel and it has very high strength. It is comparable to steel of the higher strength classes. There are five duplex groups; from lean to hyper. What gives duplex steel its character is the balance between austenitic and ferritic two-phase structures (ratio 50:50).

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  Some fine treasures at the Maritime Museum

  Posted in: Boat images

  November 15th 2019

  4256 Views 238 Liked

  We visited the Maritime Museum's open house on a nice late summer day in September when they were showing parts of the collections to the public for a weekend.

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