From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Laboratory report on the chemical composition and quality of steel welding wire.
| Identifier | ExFiles\Box 76\3\ scan0077 | |
| Date | 6th September 1917 | |
| ROLLS-ROYCE, LIMITED. LABORATORY REPORT. RR. 864b. L 422 To: EP{G. Eric Platford - Chief Quality Engineer} & EH. Date: 6th Septr 1917 Re: Welding wire (steel) laboratory on: Our specification (204) Carbon not more than .10 Silicon .15 Manganese .60 (pref.ly .35 to .55) Sulphur .04 Phosphorus .04 Material must melt readily under blow-pipe & not foam or spatter. This conforms to Air Board Specn S.32 The welders are not complaining of the wire in present use or the quality of the materials to be welded. About a year ago there were complaints - several lots of wire (of rather unsatisfactory composition) were rejected. This soon made itself evident on use. Signature: HCD | ||