STEEL.

Levin Daily Chronicle, 27 January 1917, Page 2

STEEL.

, ♦ The el! and vexed question of the influence on steel of small percentages of various constituents which the civil engineer is disposed to rank as impurities was the subject of an important debate at the autumn meeting of the J ron and Steel Institute. Of the constituents to which reference ii made I'hospliorus and sulphur have long been regarded as the chief offenders, or at least they have been made the scapegoats when material hits failed rejected for reasons always been apparent. need cf an no the a and on II a raised, but Dr. Stead agree with him claim that has yet been given that still percentages miaiht not be permitted without increasing {lie risk of accident While the discussion iat the Iron and Steel Institute revealed serious differences of opinion as to the wisdom of a fresh revision of the specification, it i.« certain that a case for further experiment as to the real influence of phosphorus and sulphur in combination with varying percentages of 'joarbon •'•as been made out, «nd that many engineers as well as steelmakers are inclined to modify views that hayo long been held and rarely challenged. A suggestion lias been made that the drawing up of the specification for steel for munition manufacture should be left to the 'Engineering Standards Committee rather than to Gov eminent officials.