BS 2HR 650. Specification for high expansion heat-resisting steel bar and wire for the manufacture of bolts, studs, set screws and nuts (Ni 25.5, Cr 15, Ti 2, Mn 1.5, Mo 1.25, Si 0.7, V 0.3) (Limiting ruling section 50 mm)
Aerospace series. Steel FE-PM1505 (X1CrNiMoAITi12-9-2). Vacuum induction melted and consumable electrode remelted. Solution treated and precipitation treated. Forgings. a or D ≤ 150 mm. Rm ≥ 1300 MPa
Aerospace series. Steel FE-PM1507 (X1CrNiMoAlTi12-11-2). Vacuum induction melted and consumable electrode remelted. Solution treated and precipitation treated. Bars. a or D ≤ 200 mm. Rm ≥ 1520 MPa