TY - RPRT TI - Effects of varying precipitation hardening temperatures and times on the ability of HSLA-80 to achieve a yield strength of 689.5 MPa and impact properties comparable to HSLA-100 AU - Hicho, G E AU - Brady, C H AU - Smith, L C AU - Fields, R J PY - 1987 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 87-3662 DO - 10.6028/NBS.IR.87-3662 ER -