Equivalent spec for S132 Steel

Hi,
I work in the porduction of this alloy extensively and there is now American Spec for this grade that I know of. It is prodomanatly a European steel grade and the main national standard specs being the Brititsh BS 3S 132, BS 970 type 879M39 (EN40) and E-40CDV12 from the French AIR 9160C military spec or the yet fully published prEN 3971/3972. There are also many manufacture specific specs for Rolls-Royce, Snecma Group, Aerospaciale, etc.
Basic Properties are:
Carbon 0.35/0.43 Si 0.10/0.35 Mn 0.40/0.70 P 0.020max S 0.020max Cr 3.00/3.50 Mo 0.80/1.10 Ni 0.30max Cu 0.30max Sn 0.030max V 0.15/0.25
Mechanical Properties:
Based on heat treatment:
Harden 950 DegC 1-2hrs Oil Quench Temper 600/650DegC for >1hr Air Cool
0.2% PS UTS %Elong %RoA Impact (Izod) Andrew