1. Specification for 12 per cent chromium corrosion-resisting steel (60/80 kgf/mm2 (38/51 tonf/in2 ): limiting ruling section 150 mm (6in)). (17th April 1968) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Specification for 1½ per cent nickel-chromium-molybdenum steel (110/130 kgf/mm2 (70/83 tonf/in2 ): limiting ruling section 70 mm (2¾ in)). (17th April 1968) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (3 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗