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              Boiler tube

              Boiler tube

              "standard

              China National Standard

              GB/T 3087, GB/T 5310, GB/T 6479, GB/T 9948, GB/T 13296

              Japanese Industrial Standard

              JIS G 3456, JIS G 3461, JIS G 3462

              "use

              For boiler water wall, economizer, reheater, superheater and steam pipe manufacturing

              》Production specifications and materials

              Specifications: 20--356×4--70

              Material: 10, 20, 20G, 20MnG, 25MnG, 12CrMo, 12CrMoG, 15CrMo, 15CrMoG, 1Cr5Mo, 12CrMoVG, 12Cr1MoVG, 16Mn, 15MnV, 10MnWVNb, 12Cr2MO, 12SiMoVNb, etc.

              》Steel pipe manufacturing method:

              Hot rolled or cold drawn (rolled).

              "delivery status:

              GB/T3087 delivery status

              1. Hot-rolled steel pipes should be delivered in a hot-rolled condition or normalized condition.

              2. Cold drawn (rolled) steel pipes shall be delivered in normalized condition.

              GB/T5310, GB/T9948, GB/T647 steel pipes should be delivered in heat treatment