Hmm, sounds very low, so I don't think that's correct. I know that the cannons apparently had a much longer service life than the ships themselves tho, and that they'd be salvaged and reused when one sank.

For Swedish "regalskepp" (the largest ships of the navy during the 1600s):

Äpplet - 3 years, sold

Vasa - 0 years, sank instantly

Äpplet - 29 years, sunk on purpose (the one in the article)

Kronan - 43 years, sunk on purpose

Göta Ark - 16 years, scrapped

Scepter - 39 years, sunk on purpose

Draken - 21 years, stranded during battle

Viktoria - 28 years, sunk on purpose

Saturnus - 45 years, though was rebuilt and renamed Bohus after 25 years

Riksäpplet - 15 years, sank during storm

Svärdet - 13 years, sank in battle

Wrangel - 49 years, though was rebuilt after 25 years

Nyckeln - 14 years, sank by own crew during battle to avoid capture

Mars - 12 years, captured by Denmark

Jupiter - 45 years, sank (not sure why)

Venus - 39 years, though was rebuilt and renamed Finland after 18 years

Kronan (aka Stora Kronan) - 4 years, exploded and sank during battle

Solen - 25 years, sunk on purpose

Mercurius - 48 years, though was captured by the Dutch 5 years after it was launched

Please note that these dates are the time that passed from launch to sinking or decommissioning, and that not all of them had a service life that long.