News
- 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
Seamless Pipes and Tubes for the Chemical Industry(Stainless Steel and Ni-based Alloys)
Stainless steel and Ni-based alloy pipes and tubes have superior corrosion resistance, heat resis-tance, and low-temperature properties, and have been used as raw materials that can withstand harsh environments as seen in petroleum refining, petroleum chemistry, and energy fields, such as power and gas. Recently, they have proliferated in fields for building construction applications with their high aesthetic quality advantages, as well as in fields of new demand including semiconductor and liquid-crystal manufacturing equipment appli-cations requiring a high level of cleanliness.
Our stainless steel and Ni-based alloy pipes and tubes have been manufactured based on excel-lent technology and strict quality control, from raw materials to final products, and have gained a favorable reputation from various fields. Without remaining complacent with the status quo, we will continue to research and develop improved products and will strive to meet the demands of the industry — which is undergoing remarkable technological innovation — and so we hope you will continue to do business with us.
Features
Consistent quality control
Consistent control is performed from the material design stage, in order to deliver materials that meet customer needs. Strict quality control is performed from the raw material processing and steel-making stages to deliver high quality materials.
Abundant steel grades
In addition to the steel grades specified in the JIS and ASTM standards, our proprietary characteristic steel grades are also available.
Numerous acquired certifications
Many JIS, TÜV, and ship-class standard certifications and approvals have been acquired.
Substantial process control and service organization
Production is based on rational process control to ensure that you are satisfied about the delivery date.
Appropriate technical services are also provided based on state-of-art research, experience, and track records.
Introduction to high-function steel grades
YUS™270
Austenitic stainless steel pipes and tubes with seawater-resistance
20Cr-18Ni-6Mo-0.7Cu-0.2N-LC／Equivalent steel grades：ASTM S31254、JIS G3463 SUS312LTB
Features
- Superior corrosion resistance against chlorides, such as seawater.
- Favorable corrosion resistance against hydrochloric acid and organic acid.
- Superior stress corrosion crack resistance to Type316 and 25Cr duplex stainless steel.
- Equivalent weldability to common austenitic stainless steel using 625 welding consumable.
Application
Seawater heat exchanger tubes and seawater desalination plant pipes
347AP
Austenitic stainless steel pipes and tubes against polythionic acid stress corrosion cracking
18Cr-10Ni-0.3Nb／Equivalent steel grades：ASTM S34751、ASME Code Case 2196
Features
- Excellent polythionic acid SCC resistance with no PWHT (post-weld heat treatment) .
- Equivalent weldability to Type304 and superior one to Type347.
- Equivalent high-temperature strength to Type347.
NEXAGE™347AlPha
Austenitic stainless steel pipes and tubes against polythionic acid SCC and stress relaxation cracking
18Cr-11Ni-3Cu-Mo-Nb-B-N/Equivalent steel grades: ASTM S34752、ASME Code Case 2984
Features
- Excellent polythionic acid SCC resistance and stress relaxation cracking with no PWHT (post-weld heat treatment)
- Superior high-temperature strength to type347H
- Equivalent weldability Type304 and superior one to Type347
NEXAGE™317AP
Austenitic stainless steel pipes and tubes against Polythionic acid stress corrosion cracking and Naphthenic acid corrosion
17Cr-14Ni-3Mo-0.3Nb-N／Equivalent steel grades: ASTM S31740、ASME Code Case 3038
Features
- Excellent naphthenic acid and polythionic acid corrosion resistance without PWHT and thermal stabilization.
- Better phase stability at high temperature as compared with type317L.
- Equivalent mechanical property to type317L.
- High Mo bearing Ni-based welding consumable such as 617 or 625 filler are available.
HYDREXEL™ 、HYDLIQUID™
New stainless steel for high pressure gaseous Hydrogen environments
22Cr-13Ni-5Mn-2Mo-0.3N-Nb-V／NIPPON STEEL Standard (According to ASME SA-312 TPXM-19)
Features
- HYDREXEL™
-
- Highest level resistance to hydrogen embrittlement due to higher Ni equivalent design
- About 15 and 50% higher strength than TPXM-19 and TP316L by adjusting manufacturing process and chemical composition within ASME TPXM-19 standard
- Good weldability with strength and resistance to hydrogen embrittlement equal to base metal
- HYDLIQUID™
-
- Optimized ranges of V, Nb and N so that it can be used for low-temperature piping portion such as liquefied hydrogen usage
- Both base metal & welded joint achieved lateral expansion≧0.46mm* at -196˚C
* ASME Section VIII Division 1 (1998) part UHA requirement - Strength satisfied with ASME TPXM-19 requirement
NEXAGE™317CU
Austenitic stainless steel pipes and tubes with sulfuric acid dew point corrosion resistance
18Cr-16Ni-3.5Mo-4Cu／Equivalent steel grades；ASTM S31730
Features
- Superior corrsion resistance in sulfuric acid and hydrochloride acid than conventional austenitic stainless steels.
- Equivalent localized corrosion resistance to Type316L.
- Equivalent weldability to Type316L using commercially available Ni-based welding consumable.
YUS™2120、YUS™2351
Duplex stainless steel pipes and tubes with high strength
YUS™2120：21Cr-2Ni-3Mn-Cu-N /Equivalent steel grades: JIS G3459 SUS821L1TP, G3446 SUS821L1 TKA, G 3463 SUS821L1TB
YUS™2351：23Cr-5Ni-1Mo /Equivalent steel grades: JIS G3459 SUS329J1TP, G3446 SUS329J1 TKA, G 3463 SUS329J1TB
Features
- Lean duplex stainpess steel pipes and tubes
- Equal or higher pitting corrosion resistance than Type 304 and Type 316L
- About twice the yeild strength as Type 304 and 316 at room temperature
DP3W
Super duplex stainless steel pipes and tubes
25Cr-7Ni-3.2Mo-2W-N／Equivalent steel grades；ASTM S39274、ASME Code Case 2427、NORSOK M-630/M-650
Features
- Excellent resistance to localized corrosion.
- High resistance to general corrosion (especially in a sour environment).
- Excellent mechanical properties.
- Good weldability.
- Low sensitivity to sigma phase precipitation.
DP28W™
Duplex stainless steel pipes and tubes for urea plants
27.5Cr-7.7Ni-2.2W-Mo-N／Equivalent steel grades：ASTM S32808、ASME Code Case 2496
Features
- Excellent corrosion resistance in urea- carbamate solution.
- High resistance to SCC.
- Very high mechanical strength.
- Good weldability.
- Good formability.
YUS™190
Ferritic stainless steel pipes and tubes with high corrosion resistance
19Cr-2Mo-Ti-Nb-ULC-LN／Equivalent steel grades：ASTM TP444、JIS G3463 SUS444TB
Features
This is a ferrite stainless steel pipe and tube that delivers superior performance regarding stress corrosion cracking, which is the disadvantage of austenite stainless steel, and also has intergranular corrosion resistance, pitting corrosion resistance, and crevice corrosion resistance that have been significantly enhanced.
- Superior stress corrosion crack resistance and intergranular corrosion resistance.
- Even or better pitting corrosion resistance and crevice corrosion resistance than TP304.
- Good formability and weldability.
Application
Water heater pipes and seawater heater exchanger tubes
NEXAGE™HR24
Austenitic stainless (high Ni) alloy pipes and tubes for ethylene plants
25Cr-38Ni-Mo-Si
Features
- Long unit length more than 13m with small diameter.
- Internal finned tubes are available.
- Excellent elevated temperature strength and carburization resistance.
- Excellent ductility.
- Easy repair of welds.
NEXAGE™845
New Ni-based alloy with best-balanced performances
23Cr-47Ni-6Mo-3Cu／Equivalent alloy grades；ASTM N06845、ASME Code Case 2794
Features
- Excellent corrosion resistance for both oxidizing and reducing environment.
- More cost-effective than conventional alloys.
- Good formability and weldability.
NEXAGE™696
Ni-based alloy pipes and tubes with excellent metal dusting resistance
30Cr-60Ni-2Cu-1.5Si／Equivalent alloy grades；ASTM N06696、ASME Code Case 2652
Features
- Excellent high- temperature corrosion resistance especially carburization and metal dusting.
- High strength at elevated temperature.
- Excellent thermal stability.
- Good weldability.
NEXAGE™201 Easy handling Ni by strengthening
Equivalent steel grades：ASTM N02200, N02201(Low-C)
Features
- Improvement of handling ability by adding Nb within the range of the standard.
- Improvement of corrosion resistance by reducing solute carbon.
Catalog
- Features
- Manufacturing Bases
- Manufacturing Process
- Available Size Range (typical examples)
- Product outline (applications and standards)
- System diagram of stainless steel and Ni-based alloy
- Introduction to high-function steel grades
- YUSTM270
- 347AP
- NEXAGETM347AlPha
- NEXAGETM317AP
- HYDREXELTM 、HYDLIQUIDTM
- NEXAGETM317CU
- YUSTM2120、YUSTM2351
- DP3W
- DP28WTM
- YUSTM190
- NEXAGETMHR24
- NEXAGETM845
- NEXAGETM696
- NEXAGETM201
- Example of Packing
- Example of Indications
- Requests during orders
- 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 plants
- Pipes & tubes for boilers/heat exchangers
- 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 process)
- Electric resistance-welded pipes & tubes
- hot electric resistance-welded (SW) pipes & tubes
- Arc-welded pipes & tubes
- Secondary machining
- Pipe & tube plant of NIPPON STEEL
Contact Information
For further product information
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