Stegmann is one of six players who completed the Grand Slam in the tournament before going on to reach the final of the IRB Junior World Championship.
"We've got a good balance between experience and new players with lots of pressure from the replacements and other guys in the squad for places in the side," said coach Mark Mapletoft. "We've had a lot of tough selection calls to make, which is the way it should be."
The England Under 20's side open their 6 Nations campaign against Italy U20's this Friday 6th January, at Sixways Stadium (home of the Worcester Warriors).
England Under 20
15 Charlie Sharples (Gloucester Rugby)
14 Seb Stegmann (Harlequins)
13 Henry Trinder (Gloucester Rugby)
12 Luke Eves (Bristol Rugby)
11 Will Hurrell (Leicester Tigers)
10 Rory Clegg (Newcastle Falcons)
9 Ben Youngs (Leicester Tigers)
1 Ben Moon (Exeter Chiefs)
2 Jamie George (Saracens)
3 Bob Baker (London Wasps)
4 James Gaskell (Sale Sharks)
5 Graham Kitchener (Worcester Warriors)
6 Courtney Lawes (Northampton Saints)
7 Calum Clark (Leeds Carnegie, captain)
8 Chris York (Harlequins)
Replacements
16 James Clark (London Irish)
17 Shaun Knight (Gloucester Rugby)
18 Dan Williams (Gloucester Rugby)
19 Josh Ovens (Bath Rugby)
20 Dan White (Leeds Carnegie)
21 Rob Miller (Newcastle Falcons)
22 Greig Tonks (Leicester Tigers)
