Low-Alloy High-Strength Steel for Boiler Tubes (LowC-9Cr-2Mo)

1976 ◽  
Vol 98 (2) ◽  
pp. 173-178 ◽  
Author(s):  
T. Yukitoshi ◽  
K. Nishida ◽  
T. Oda ◽  
T. Daikoku
Keyword(s):  
High Temperature ◽  
High Strength Steel ◽  
Austenitic Stainless Steels ◽  
High Strength ◽  
Strengthening Mechanism ◽  
Steel Tube ◽  
High Temperature Strength ◽  
Low Alloy Steels ◽  
Service Test ◽  
Alloy Steels

High-strength steel tube HCM9M (LowC-9Cr-2Mo) steel, which shows the intermediate high-temperature strength between austenitic stainless steels and commercial low-alloy steels, has been developed. It has superior weldability, workability and oxidation resistivity. At present HCM9M tubes have been in-service test as reheater and superheater tubing at the 165,000 kW boiler in Japan without trouble. This report deals with the practical properties of HCM9M steel, service test experience and high temperature strengthening mechanism of the steel from morphological viewpoint of carbide.

scholarly journals THE HIGH TEMPERATURE STRENGTH OF LOW ALLOY STEELS

1957 ◽  
Vol 43 (7) ◽  
pp. 703-710
Author(s):  
Shusuke Tsuchiya ◽  
Shunji Yamamoto ◽  
Yasuo Tanifuji
Keyword(s):  
High Temperature ◽  
High Temperature Strength ◽  
Low Alloy Steels ◽  
Alloy Steels

scholarly journals Effects of different deoxidization methods on high-temperature physical properties of high-strength low-alloy steels

2020 ◽  
Vol 39 (1) ◽  
pp. 157-163
Author(s):  
Ke-lin Zhang ◽  
Kai-ming Wu ◽  
Oleg Isayev ◽  
Oleksandr Hress ◽  
Serhii Yershov ◽  
...  
Keyword(s):  
Surface Tension ◽  
Electrical Resistivity ◽  
High Temperature ◽  
Physical Properties ◽  
Kinematic Viscosity ◽  
High Strength ◽  
Low Alloy Steels ◽  
Heating And Cooling ◽  
Alloy Steels ◽  
Metallic Melts

AbstractThis study was aimed at examining the effects of different deoxidization methods on the physical properties of metallic melts by measuring the changes in the kinematic viscosity, electrical resistivity, surface tension, and density of the metallurgical melts during the heating and cooling processes. Our results indicate that high-temperature physical properties are consistently affected by specific elements and compounds.

TEMPALOY AA-1

Alloy Digest ◽  
2005 ◽  
Vol 54 (7) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Stainless Steels ◽  
Rupture Strength ◽  
Austenitic Stainless Steels ◽  
Steel Tube ◽  
High Temperature Strength ◽  
Creep Rupture Strength ◽  
The Past ◽  
Temperature Performance

Abstract In the late 1990s boilers were designed for higher temperatures and pressures than those in the past and required steels with high-temperature strength that is greater than that of conventional 18-8 austenitic stainless steels. A heat-resisting steel (0.1C-18Cr-10Ni-3Cu-Ti-Nb) was developed with a creep rupture strength at 600-700 deg C (1110-1290 deg F) that is 30% higher than that of AISI TP347H. This steel tube, called TEMPALOY AA-1, is expected to be a candidate material for ultra-supercritical boilers. This datasheet provides information on composition and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming and joining. Filing Code: SS-934. Producer or source: Tenaris NKKTubes.

Development of nonmagnetic high-strength steel with the corrosion potential of low-alloy steels

Metallurgist ◽  
1996 ◽  
Vol 40 (5) ◽  
pp. 73-75
Author(s):  
O. A. Bannykh ◽  
V. M. Blinov ◽  
M. V. Kostina
Keyword(s):  
High Strength Steel ◽  
Corrosion Potential ◽  
High Strength ◽  
Low Alloy Steels ◽  
Alloy Steels

Effects of cooling rate on the mechanical properties of dual phase treated vanadium steels

1983 ◽  
Vol 41 ◽  
pp. 220-221
Author(s):  
L.J. Chen ◽  
H.C. Cheng ◽  
J.R. Gong ◽  
J.G. Yang
Keyword(s):  
Mechanical Properties ◽  
Cooling Rate ◽  
Automobile Industry ◽  
High Strength ◽  
Weight Percent ◽  
Low Alloy Steels ◽  
Dual Phase ◽  
Resource Requirement ◽  
Alloy Steels ◽  
Potential Weight

For fuel savings as well as energy and resource requirement, high strength low alloy steels (HSLA) are of particular interest to automobile industry because of the potential weight reduction which can be achieved by using thinner section of these steels to carry the same load and thus to improve the fuel mileage. Dual phase treatment has been utilized to obtain superior strength and ductility combinations compared to the HSLA of identical composition. Recently, cooling rate following heat treatment was found to be important to the tensile properties of the dual phase steels. In this paper, we report the results of the investigation of cooling rate on the microstructures and mechanical properties of several vanadium HSLA steels.The steels with composition (in weight percent) listed below were supplied by China Steel Corporation: 1. low V steel (0.11C, 0.65Si, 1.63Mn, 0.015P, 0.008S, 0.084Aℓ, 0.004V), 2. 0.059V steel (0.13C, 0.62S1, 1.59Mn, 0.012P, 0.008S, 0.065Aℓ, 0.059V), 3. 0.10V steel (0.11C, 0.58Si, 1.58Mn, 0.017P, 0.008S, 0.068Aℓ, 0.10V).

UNIFLUX V90

Alloy Digest ◽  
1979 ◽  
Vol 28 (2) ◽  
Keyword(s):  
Carbon Dioxide ◽  
High Strength ◽  
Heat Treating ◽  
Carbon Steels ◽  
Low Alloy Steels ◽  
Nickel Steel ◽  
Steel Weld Metal ◽  
Alloy Steels ◽  
Temperature Impact ◽  
Welding Electrode

Abstract UNIFLUX V90 is a continuous flux-cored welding electrode (wire) developed to weld high-strength low-alloy steels, but it may be used to weld other low-alloy steels and carbon steels. It is used to deposit typically 2.40% nickel steel weld metal with good low-temperature impact properties. Welding is protected by a shielding atmosphere of either 75% argon-25% carbon dioxide or 100% carbon dioxide. Uniflux V90 is used widely in shipbuilding and other fabricating industries. It provides around 88,000 psi tensile strength and around 26 food-pounds Charpy V-notch impact at 60 F. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as heat treating, machining, and joining. Filing Code: SA-355. Producer or source: Unicore Inc., United Nuclear Corporation.

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