KR> steel and ally

[AVLEC]

Can anyone tell me what differences there are between 4130, 4140 to EN19 as
well as the phisical differences between 6061 and 6261 ally.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net