Requisitos para los Aceros.

- 62 - ENGLISH TEXT Steel where used in the construction of car frames and platforms shall conform to the following requirements: 1. Car-Frame and Platform-Frame Members. Steel shall be rolled, forged or cast, conforming to the requirements of the following specifications of the American Society for Testing Materials: a. Rolled Steel, ASTM A7-61T or ASTM A36-63T. b. Forged Steel, ASTM A235-63T Class C C. Cast Steel, ASTM A27-60, Grade 60/30 2. Rivets, Bolts, and Rods - Steel used for rivets, bolts and rods shall conform to the following specifications of the American Society for Testing Materials: a. Rivets, ASTM A141-58 b. Bolts and Rods, ASTM A307-64 Exception: Steel of greater strength than those specified may be used provided they have an elongation of not less than twenty-two (22) per cent in a length of two (2) inches, and provided that the stresses and deflections conform to the requirements of Rule 203.10 and 203.11 respectively. Ibid 203.6c - Requirements of Metals other than Steel