News
- Oct. 07, 2024 Nippon Steel Obtained SuMPO EPD (Formerly EcoLeaf) Certificationsfor Its Hot Extruded Steel Shapes
- Jul. 10, 2024 Long-term OCTG supply contract with Aker BP renewed –Strengthens strategic partnership through stable supply of OCTG–
- Jul. 03, 2024 Long-term OCTG supply contract with Equinor renewed –Strengthens strategic partnership through stable supply of OCTG–
- Jun. 14, 2024 Acceptance of Orders for High-Alloy Seamless OCTG and Employment of Green Steel “NSCarbolex Neutral” Finalized for CCS to Be Used in Construction Project for Blue Ammonia Manufacturing Plant in the State of Qatar
- May. 15, 2024 Adoption of Coating Cycle Extension Steel “CORSPACE” for the First Time in Overseas ODA Bridge Construction
- Apr. 23, 2024 Participation in OTC, an Energy-Related Exhibition in the U.S.
- Mar. 22, 2024 Designing Titanium TranTixxii wins the European “iF DESIGN AWARD 2024” —The world's first non-ferrous metal material to receive the award—
- Sep. 28, 2023 The Adoption of “NSCarbolex Neutral” steel product for geothermal project in the Netherlands operated by 85 Degrees Renewables.
- Mar. 11, 2022 Nippon Steel's TranTixxii and NIPPON STEEL Stainless Steel Corporation's NSSC220M featured on the roof of an international conference center in Jiangsu, China
- April 22, 2021 Nippon Steel to Launch ZAM®-EX high corrosion resistant coated steel sheets for overseas markets
- Oct. 01, 2020 Our new product "FeLuceTM" (hairline-finished electroplated steel sheet) wins the Good Design Award 2020 ～Our first steel sheet to win the Good Design Award～
- Feb. 14, 2019 NSSMC Receives Shell’s Supplier Award
- Jul. 30, 2018 Execution of Strategic Partnership with BP Oman
- Jul. 30, 2018 "The beauty of distinctive gradations make people feel nature" was posted.
- Jul. 26, 2018 VAM® 21 HT CLEANWELL® DRY ST First Running
- Jul. 19, 2018 Steel Wires Joint Venture Company for Cold Heading and Forging in USA (NSCI) holds an Opening Ceremony
- Jun. 27, 2018 NSSMC and Standard Steel Receive TTX “Excellent Supplier 2017” Award
- May. 29, 2018 NSSMC Named a Top 100 Global Innovator in 2017 for Sixth Consecutive Year
- Apr. 25, 2018 Steel Wires Joint Venture Company for Cold Heading and Forging in USA (NSCI) Starts Commercial Production
- Apr. 17, 2018 Strengthening Supply System for Ultra-high-tensile Steel Sheets New CGL to be installed at Kimitsu Works
- Feb. 27, 2018 Nippon Steel & Sumikin Crankshaft, NSSMC’s manufacturing and sales subsidiary of crankshafts in the U.S., earns Diamond Supplier Award from Navistar
- Aug. 04, 2017 NSSMC’s proprietary titanium product TranTixxii™ is adopted for cladding of a theater in Jiangsu Province, China
Electric Resistance-welded
Steel Tubes for Boilers and Heat Exchangers
NIPPON STEEL has established a special electric resistance-welded tube factory dedicated to high-grade tubes for boilers and plants in order to conduct the full-scale production of high-grade electric resistance-welded (ERW) steel tubes equivalent to seamless steel tubes. Based on our preeminent steel-making technology and hotrolling equipment, we manufacture electric resistance welded steel tubes for boilers and heat exchangers that rivals or exceeds seamless steel tubes, all by adopting: tubemaking equipment designed for especially high-grade steel tubes, automatic welding control systems, various pieces of extremely highly reliable full-automatic nondestructive test equipment, and large-capacity bright heat treatment furnaces.
Features
NIPPON STEEL ERW steel tubes for boilers and heat exchangers are manufactured consistently, from the raw material process to the tube-making and purification process, and have the following superior features—all through superior manufacturing equipment and thorough quality control.
Extremely favorable welded part quality
- The highest quality killed steel developed especially for boiler tubes is used, and the welded part quality is extremely favorable̶achieved through accurate forming and high-frequency induction welding, adopting an automatic welding control system.
- A string of nondestructive testing facilities centered on state-of-the-art fully automatic ultrasonic inspections are used to ensure quality assurance, and the products are provided with the high quality required by boiler tubes.
- The welded part provides the same metal composition as the base material through bright heat treatment, and it has uniform and superior quality equivalent to seamless steel tubes.
- The specification in (58) in “Note 1 (Remark 1)” in Attached Table 1 of “Interpretation of the Thermal Power House Technical Standard” is satisfied, and the same allowable stress as seamless steel tubes can be applied.
Superior size and shape
- Formed precisely by a state-of-the-art tube-making machine, the product has extremely superior dimensional accuracy and roundness.
- The removal of internal and external surface beads on the welded part from during the steelmaking process is extremely superior. Especially, the removal shape of the internal surface bead is distinguished, and a smooth internal surface property is assumed.
- The product has favorable thickness accuracy, and the tube mass increase rate can be reduced.
- Due to high inside diameter accuracy, steam supply pressure loss can be reduced.
Enhanced management system
- We have established a thorough management system, ranging from technical service to product delivery, in order to respond to every request and offer consultation regarding usage.
Application Examples
- Large utility thermal generation boiler
- Vertical water tube package boiler
- Economizer incorporation
- Air fin cooler steel tube
- Soda recovery boiler
- Furnace wall tube for power boiler
Catalog
Electric Resistance-welded Steel Tubes for Boilers and Heat Exchangers (8.83MB)
- Introduction
- Features
- Boiler Structure and an Example of the Utilized Parts of an ERW Boiler Tube
- Application Examples
- Production Standard
- Available Size Range
- Manufacturing Process
- Grooving Corrosion Prevention
- Welded Part Quality
- Sulfuric and Hydrochloric Acid Dew-point Corrosion Resistance Steel Tubes : S-TEN™1
- Sulfuric Acid Dew-point Corrosion Resistance Steel Tubes : CR1A
- Creep Strength
- Marking, Oil Coating, and Packing
- Integrated Steel Manufacture
- Pipe-making facilities and product types
- NIPPON STEEL product standards
- Applications
- Pipes & tubes for piping
- Pipes & tubes for mechanical structures
- Pipes & tubes for marine structures and general structures
- Pipe piles/pipe sheet piles
- Pipes & tubes for shipbuilding
- Pipes & tubes for plants
- Pipes & tubes for boilers/heat exchangers
- Pipes & tubes for high pressure hydrogen
- Pipes & tubes for the chemical industry/nuclear power plant
- Oil & Gas Casing & Tubing/Line pipe (offshore)
- Production process
- Seamless pipes & tubes (Mannesmann process)
- Seamless pipes & tubes (hot extrusion・hot hollow forged)
- Electric resistance-welded pipes & tubes
- Hot electric resistance-welded pipe & tubes
- Arc-welded pipes & tubes
- Secondary machining
- Pipe & tube plant of NIPPON STEEL
Contact Information
For further product information
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