Canada remained on top of the standings after Day 2, but Sweden's performance glommed some of the spotlight from the leaders.
The Swedes were 18 shots better than their opening-round score, following a 6-over 150 on Thursday with Floren and Akesson's 12-under 132 on Friday.
The 1-under 71 score of a third teammate, Niklas Lemke, was excluded (in each of the four stroke-play rounds, the total of the two lowest scores by players from each team constitutes the team score for that round).
'They played slightly better,' Swedish coach Magnus Grankvist joked after his team tied the United States' 2004 record for lowest single-day team score in World Amateur history.
They played better, yes, but Floren described his round as merely 'OK.'
'It might sound strange,' he said, 'but I know I could have gone lower. This is my second World Amateur and it's my lowest score.'
The Swedish team's effort moved them into fifth place at 6-under-par 282 -- four shots adrift of the leading Canadians, who stand at 10-under 278.
Richard Scott continued to spark the Canadian effort, following his first- round 69 with a 4-under 68 on Friday. Andrew Parr added a 1-under 71 for the other counted Canadian score.
The three-time defending champion United States team -- which won in 2004 with Ryan Moore, Spencer Levin and Lee Williams -- moved into second place at nine- under 279.
Surprising alternate Chris Kirk, who is filling in for Webb Simpson, fired the round of the day with a 6-under 66 to lead the Americans.
Trip Kuehne -- the most experienced American with two Walker Cup appearances, and best-known for losing the 1994 U.S. Amateur final to Tiger Woods -- added a 2-under 70 after he bumbled to a 78 on Thursday.
NCAA individual champion Jonathan Moore had a second-consecutive 72, the Americans' excluded score.
The Netherlands and Mexico share third place at 7-under 281, one shot ahead of the Swedes. Korea posted a solid 7-under 137 and stands in sixth place at minus-5.