The records of the Steel Division--Operations are primarily concerned with products, production, and plant engineering. The majority cover only the Bethlehem Plant.

Among the records covering more than one plant are the minutes of the meetings of plant general managers (1918-1922). These are primarily concerned with output and material flows. There is almost no mention of the labor situation. An illustrated manuscript text for a series of training lectures (1920) describes the various processes then used in Bethlehem's plants.

The records of the Bethlehem Plant are particularly strong on armor plate and ordnance. There are two fine large portfolios of ink-and-wash drawings, and two illustrated reports on the types of heavy guns and shells produced in the years just prior to World War I, as well as some notebooks of Army and Navy contracts. There are also a series of ballistics test reports for armor-piercing and common shells from the inter-war years, arid contracts and plans for a proposed naval station and refinery to be built in Argentina, ca. 1910-1924. Also included are two illustrated reports on electric arc welding from the period (1928) when this technology was being introduced on a large scale.

The records of the Metallurgical Department consist of quality control tests on raw materials, refractories and rails. Production records list the output of blast furnaces and open hearths. Other notes on production costs are contained in the records of the Works Auditor.

Labor records are limited to a single early payroll ledger, giving names, occupations, hours, and wage rates for some unspecified part of the works. There are also some service record cards for salaried employees. The works office cash books are primarily records of paying bills and orders, and small cash advances to company executives.

The only records of the Cambria Plant are scattered files from the Engineering Department, primarily related to water supplies and the rebuilding of the Gautier Mills. The records of the Coatesville Plant include records of employee changes, giving name, occupation, and reason for leaving; and a series of termination notices for the closing of the plant at the end of 1943. The only records of the Steelton Plant are summary lists of bridge contracts to 1920.