S9074-AR-GIB-010/278
4/ Electrodes with an “HY” suffix are also suitable for welding ordinary or higher strength steel to HY-80 steel or to HY-100 steal. 5/ A filler material type containing an “X” in the designation allows various options: for example, “MIL-309-XX” permits “MIL-309-15” or -16". 6/ Use of AWS filler material shall require compliance with 5.2.1 where the same military specification filler material type exists. If there is no military specification filler material type, conformance testing of each lot of electrode shall be accomplished in accordance with AWS A5. 01. As a minimum schedule J shall be employed. Lot classification shall be in accordance with AWS A5. 01 Class C3 for covered electrodes. Class S2 for bare solid electrodes and rods, brazing filler metal, and consumable inserts: Class T2 for flux cored electrodes and metal cored electrodes and rods: and Class F2 for fluxes for SAW and brazing. Test requirements shall be submitted for approval in accordance with 5.2.1. 7/ See paragraph 6.5. 8/ The covered electrodes shall conform to all the quality conformance requirements of MIL-1N12 specified in MIL-E-22000/3 but with tensile properties and chemical composition of E NiCrMo-4 as specified in AWS 15.11. 9/ The filler metal shall conform to all the quality conformance requirements for EN/RN625 specified in MIL-E-21562 but have a minimum tensile strength of 100 ksi, an elongation of 25 percent and a chemical composition of ER NiCrMo-4 as specified in AWS A5.14. 10/ With additional requirements for toughness, ferrite content and other items as approved by NAVSEA. 5.2.1 Material substitution approval. Unless otherwise covered in the Government equipment specifications, materials acquired in accordance with AMS, AWS, ASTM, or as ASME standards (or approved substitution material list) may be used for materials listed in tables I and II subject to the following provision: (a) To ensure compliance to the governing material specification, quality assurance and inspection requirements shall be established by the contractor and submitted to NAVSEA or authorized representative for approval. After obtaining approval, the contractor shall invoke the requirements in purchase orders for materials or perform the required inspection upon receipt of material or prior to its use in fabrication. 5.2.2 Specification deviations. Unless otherwise covered in the Government specification, deviations from specification requirements of governing material specifications shall be submitted to NAVSEA or authorized representative for review and approval.
Original 47
Made with FlippingBook - Share PDF online