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|  MIL-S-81054A(OS)
3.2 Basic requirements.
3.2.1 Materials and treatments of materials. Unless otherwise speci-
fied in the contract or order, bars and forgings shall be manufactured
and treated in accordance with the requirements specified herein,
3.2.2 Gages. The supplier shall provide whatever gages are necessary
and adequate to assure that the bars and forgings will meet the
requirements specified herein and the dimensions of the applicable
drawings,
3.3 Physical characteristics.
3.3.1 Material. The bars and forgings shall be fine-grain, electric-
furnace-grade steel and shall conform to the applicable requirements of
this specification,
3.3.1.1 Type.
3.3.1.1.1 Type I, air-melted steel. Type I steel shall be manufac-
tured in accordance with industry standards for electric-furnace-grade
steel.
3.3.1.1.2 Type II, vacuum-melted steel. Type II steel shall be pro-
duced by consumable-electrode, vacuum remelting or by vacuum-induction
melting, Type II steel shall conform to composition A.
3.3.1.2 Grade. Forgings shall be provided in three grades and shall
be classified as grade A, B, or C in accordance with the tests to which
they have been subjected. The tests for bars and each grade of forgings
shall be as specified in table I.
3.3.1.3 Chemical composition. The chemical composition of the steel,
as determined by a check analysis of the deliverable product, shall con-
form to the requirements of table 11, Steel is classified as composition
A or B, in accordance with the percentage of sulphur and phosphorus it
contains,
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