Thanks Noel Tan to take your time to provide your reply, here the answers:
1) 3G UPHILL
2) The materias certificate (CMTR) says the following (made by Chapel Steel Co.):
QUALITY STEEL MELTED & MANUFACTURED IN THE USA
Plates - ASME SA516 Gr. 70 PVQ 2004 Edition
MOD C .20 MAX, ASME SA516 GR 65 PVQ
2004 EDITION, ASME SA516 GR 60 PVQ
2004 EDITION, ASME SA515 GR 70 PVQ
1998 EDITION MOD PER PARA 4.1 FINE
GRAIN PRACTICE, ASTM A515-90 GR 70
PVQ MOD, CH-V SA20SS PLT L 15/12
FTLBS AT -40F ----- PLT NORMALIZED &
COOLED IN STILL AIR ---- TEST CERTS
NO WELD REPAIR WAS PERFORMED ON BELOW PLATE (S)
CO# SOU-2913 CE 366-5337E
PLATES HEAT TREATED - TEST SPECIMENS ATTACHED & YIELD STRENGTH .5% EUL
The people that produced the PQR pointed out the ASTM A515 Gr 70: Yield point 51 kpsi, Tensile strenght 70 kpsi, Elong 37%
3) Yes, both sections were impact tested
Thanks a lot for your support