Changes
/* groupe 1.72xx, Cr-Mo(-B) avec Mo < 0,35% */
[https://www.grantadesign.com/userarea/Mil/mil5_mainpdf2_3.htm infos MIL-HDBK-5-H (§2.3)], [http://everyspec.com/MIL-HDBK/MIL-HDBK-0001-0099/MIL_HDBK_5J_139/ download MIL-HDBK-5-J (complet, aller au §2.3)]
[http://www.lucefin.com/wp-content/files_mf/0542crmo41925crmo4a.pdf Lucefin]
| +QT: 700
