3315.1SCOPE
Provide Material for steel forgings.
3315.2REQUIREMENTS
A Material Requirements Provide Material for steel forgings meeting the requirements for one of the three types of steel specified in this section, as required by the Contract. If the Contract does not specify a steel type, provide Type I. A.1 Type I — Carbon Steel Forgings Provide carbon steel forgings meeting the requirements of ASTM A668, Standard Specification for Steel Forgings, Carbon and Alloy, for General Industrial Use, Class D forged from blooms, billets, bars, or slabs meeting the requirements of ASTM A711, Standard Specification for Steel Forging Stock, Grade C 1035 or Grade C 1040. A.2 Type II — Alloy Steel Forgings Provide alloy steel forgings, for sizes no greater than 9 inches thick or in diameter, meeting the requirements of ASTM A668, Standard Specification for Steel Forgings, Carbon and Alloy, for General Industrial Use, for Class G. Provide alloy steel forgings, for sizes greater than 9 inches thick or in diameter, meeting the requirements of ASTM A668, Standard Specification for Steel Forgings, Carbon and Alloy, for General Industrial Use, for Class H.
Provide alloy steel forgings made from alloy steel blooms, billets, bars, or slabs meeting the requirements of ASTM A711, Standard Specification for Steel Forging Stock for Grade 4140, Grade 4142, or Grade 4145. A.3 Type III — Corrosion Resisting Steel Forgings Provide corrosion resisting steel forgings made from billets or bars primarily produced for reforging in accordance with ASTM A314, Standard Specification for Stainless Steel Billets and Bars for Forging, for Type 316. Provide steel forgings meeting the physical and chemical requirements for hot -rolled Materials as specified in ASTM A276, Standard Specification for Stainless Steel Bars and Shapes . Provide Type 316 Material that is fully annealed to develop maximum corrosion resisting properties. Workmanship, appearance, and finish must conform to ASTM A484, Standard Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings . B Machine Finishing Machine steel forgings after the annealing process is complete. Finish forgings in accordance with 2471, “Structural Metals.” Unless otherwise shown on the Plans or required by the Contract, bore a 2 inch round hole longitudinally through the center of each type of forged steel pin roller measuring over 9 inches in diameter.
3315.3SAMPLING AND TESTING
Ensure the supplier performs the following physical and chemical tests required by the ASTM Specifications for Type I, Type II, and Type III Material:
Standard Guide for Magnetic Particle Testing
Standard Practice for Magnetic Particle Examination of Steel Forgings
Practice for Ultrasonic Examination of Steel Forgings Ensure the supplier performs magnetic particle testing after machining operations are complete. The Engineer will reject Material with serious defects such as bursts, cracks, pipes, internal cracks and flakes, or laminations. Submit to the Engineer Certified Test Reports for physical, chemical, magnetic particle, and ultrasonic tests from the Supplier.
Steel Forgings in other states
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