This Standard specifies requirements for carbon steel and carbon-manganese steel forgings for general engineering purposes with ruling section up to and including 300 mm. The Standard provides for the supply of forgings on the following basis:(a) Chemical composition only, as specified in Tables 1 to 4.(b) Chemical composition as specified in Tables 1 to 4, and hardness or other mechanical properties in any heat-treated condition, as negotiated at the time of enquiry and/or order.(c) Chemical composition and mechanical properties in the normalized or normalized and tempered condition as specified in Table 5.NOTES:1 For guidance on purchasing requirements refer to Appendix A.2 To demonstrate a means of compliance to the Standard refer to Appendix B.