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).
Tempering graph for Vibrac Steel V.45.
| Identifier | ExFiles\Box 176\3\ img098 | |
| Date | 25th June 1940 guessed | |
| TEMPERING GRAPH OF VIBRAC STEEL V.45 Jun file DIA. OF BAR: 1" HARDENING TEMPERATURE 830°C. QUENCHING MEDIUM: OIL COOLED, AFTER TEMPERING IN AIR. Y-AXIS LABEL: TONS PER SQUARE INCH - PERCENTAGES - FOOT-POUNDS - BRINELL IN UNITS OF TEN. X-AXIS LABEL: REHEATING TEMPERATURE - DEGREES CENTIGRADE. GRAPH CURVES: MAXIMUM STRESS, YIELD POINT, BRINELL HARDNESS, REDUCTION IN AREA %, IZOD IMPACT, ELONGATION % NOTE: ACTUAL REHEATING TEMPERATURES OF TEST SAMPLES INDICATED BY * | ||