The development of a new 18-8 austenitic steel (0.1C-18Cr-9Ni-3Cu-Nb, N) with high elevated temperature strength for fossil fired boilers
Description
The economical austenitic materials with high elevated temperature strength are required for superheater tubes in Japanese fossil fired boilers. For this requirement, the new steel (0.1C-18Cr-9Ni-3Cu-Nb, N) has been developed. The 105h creep rupture strength at 600 ∼ 700 degrees C for this steel is higher more than 30% compared with ASME SA-213 TP347H. This excellent creep rupture strength is based on the finely precipitated particles such as Cu-rich phase, NbCrN, Nb(C, N) and M23C6. The microstructural stability of this steel is also sufficient. Based on these considerations, it may be concluded that this steel can be promising material for boiler tubes from the economical and practical points of view. This paper describes the development philosophy and characteristics of this developed steel
Additional details
Publishing Information
- Publisher
- American Society of Mechanical Engineers.
- Imprint Place
- New York, NY (United States)
- ISBN
- 0-7918-6514-X
- Imprint Title
- New alloys for pressure vessels and piping
- Imprint Pagination
- 203 p.
- Journal Page Range
- p. 141-146.
Conference
- Title
- 1990 pressure vessels and piping conference.
- Dates
- 17-21 Jun 1990.
- Place
- Nashville, TN (United States).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 24000383
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- AUSTENITIC STEELS; BOILERS; CARBON ADDITIONS; CHEMICAL COMPOSITION; CHROMIUM ALLOYS; CREEP; FOSSIL-FUEL POWER PLANTS; HEAT RESISTING ALLOYS; LOW ALLOY STEELS; MATERIALS TESTING; NICKEL ALLOYS; NIOBIUM ALLOYS; NITROGEN ADDITIONS; PRESSURE VESSELS; STABILITY; STRAIN HARDENING; SUPERHEATERS; TEMPERATURE RANGE 0400-1000 K; THERMOMECHANICAL TREATMENTS
- Descriptors DEC
- ALLOYS; CONTAINERS; FABRICATION; HARDENING; HEAT TREATMENTS; IRON ALLOYS; IRON BASE ALLOYS; MATERIALS WORKING; MECHANICAL PROPERTIES; POWER PLANTS; STEELS; TEMPERATURE RANGE; TESTING; THERMAL POWER PLANTS
Optional Information
- Secondary number(s)
- CONF-900617--.