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STEEL FROGINGS

release time：2015-12-03 09:12
1 This Chapter applies to steel forgings intended for use in the hull structure, machinery, pressure vessels and piping systems, which are manufactured in accordance with the requirements of CCS Rules for Classification of Sea-going Steel Ships and CCS Rules for Materials and Welding. Where it is proposed to use carbon or carbon-manganese steels or alloy steels other than those specified in CCS Rules, details of the chemical composition, mechanical properties and heat treatment process are to be submitted to CCS for approval, and such steels, subject to consent of CCS, may be accepted in accordance with the relevant standards recognized by CCS.
2 This Chapter also applies to rolled slabs and billets in stead of steel forgings, and applies to rolled round used for the manufacture (by machining operations only) of shafts, bolts, studs and other components of similar shape.
3 Forgings are to be made at a manufacturer approved by CCS. The steel used to forging is to be made at a steel works approved by CCS.
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W05STEEL FROGINGS.pdf
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