BS 5S 99:1994
Specification for 2.5% nickel-chromium-molybdenum (high carbon) steel billets, bars, forgings and parts (1230-1420 MPa: limiting ruling section 150 mm)

Standard No.

BS 5S 99:1994

Release Date

1994

Published By

British Standards Institution (BSI)

Status

Be replaced 1994-01

Replace By

BS 5S 99:1994+A1:2015

Latest

BS 5S 99:1994+A1:2015

Replace

BS 4S 99:1976 93/702779 DC-1993

Scope

This standard specifies characteristics of a nickel-chromium-molybdenum steel supplied in the following forms, and as parts, for general aerospace use: a) forging stock, designation S99A; b) forgings: softened, designation S99C; c) forgings: hardened and tempered, designation S99F; d) black bars for machining: softened, designation S99B; e) black bars for machining: hardened and tempered, designation S99E; f) bright bars for machining: softened, designation S99D; g) bright bars for machining: hardened and tempered, designation S99G.

BS 5S 99:1994 history

• 1994 BS 5S 99:1994+A1:2015 Specification for 2.5% nickel-chromium-molybdenum (high carbon) steel billets, bars, forgings and parts (1230-1420 MPa: limiting ruling section 150 mm)
• 1994 BS 5S 99:1994 Specification for 2.5% nickel-chromium-molybdenum (high carbon) steel billets, bars, forgings and parts (1230-1420 MPa: limiting ruling section 150 mm)
• 0000 BS 4S 99:1976