Journal . itel [?:Tri~yrli:~T~: r:? ?;:Ii!~i r^. XXXVIII THE PHYSICAL PROPERTIES OF (LAV. 51 Messrs. Muntzs .Metal Co., Ltd., wrote, The Muntzs metalsamples wire cast in a chilled mo .Id about 6 ins. diameter andthen hot rolled to 3 ins. diameter, no further treatment wasgiven. We regret we have not a complete analysis of the samples ;the composition is approximately 600 copper and 40% zincwith small quantities of lead and iron as impurities ; probablythe total quantity of impurities would be under 5,,. Messrs. Elliots Metal Company, Ltd., wrote in regard tothe copper specimens, The materials
Journal . itel [?:Tri~yrli:~T~: r:? ?;:Ii!~i r^. XXXVIII THE PHYSICAL PROPERTIES OF (LAV. 51 Messrs. Muntzs .Metal Co., Ltd., wrote, The Muntzs metalsamples wire cast in a chilled mo .Id about 6 ins. diameter andthen hot rolled to 3 ins. diameter, no further treatment wasgiven. We regret we have not a complete analysis of the samples ;the composition is approximately 600 copper and 40% zincwith small quantities of lead and iron as impurities ; probablythe total quantity of impurities would be under 5,,. Messrs. Elliots Metal Company, Ltd., wrote in regard tothe copper specimens, The materials were cast in a 6 billet and rolled hot to 3 in. diameter ; the sampleswere then turned from this. The shearing and tension test pieces were cut from the sidesof the billet and not from the centre. The copper was madegenerally in accordance with the British Standard SpecificationNo. 11 for copper stay rods, and assays— Copper 99-4% Arsenic 0-251% Bismuth ... ... ... ... Nil. Unfortunately, owing to an accident in turning, we wereun
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Keywords: ., bookcentury1800, bookdecade186, bookpublisherlondon, bookyear1861
