Manufacturing and Testing of Welded Stainless Steel Tubing: You Have a Choice

2006 ◽  
Author(s):  
Daniel S. Janikowski ◽  
Ron Roth
Keyword(s):  
Stainless Steel ◽  
Power Plant ◽  
Cold Working ◽  
Critical Power ◽  
Cost Effective ◽  
Heat Treating ◽  
Advantages And Disadvantages ◽  
Stainless Steel Tubing ◽  
Steel Tubing

A tubing manufacturer has many alternatives for manufacturing and testing stainless steel tubing for feedwater heater and condenser applications. ASTM specifications are fairly generic in nature and only specify the basic requirements needed for supplying a tube. These may not be sufficient for providing the appropriate quality tube for a critical power plant application. This paper summarizes many of the options in welding, cold working, heat treating and testing of tubing. It identifies the advantages and disadvantages of each and provides suggestions on what should be specified to ensure a reliable cost-effective tube for your application.

Manufacturing and Testing of Welded Stainless Steel Tubing: You Have a Choice Part 2—Feedwater Heater Tubing

2008 ◽  
Author(s):  
Daniel S. Janikowski ◽  
Edward R. Blessman
Keyword(s):  
Stainless Steel ◽  
High Reliability ◽  
Cost Effective ◽  
Advantages And Disadvantages ◽  
Steel Tubing ◽  
Minimum Requirements ◽  
Manufacturing Techniques ◽  
Tube Life ◽  
Heater Tube

The stainless steel feedwater heater specifications, ASTM A688/ASME SA 688 and ASTM A803/SA 803, were developed over 30 years ago. At that time, no one envisioned the temperatures and pressures that today’s super and ultra-critical units would operate. The increased pressures, temperatures, and expectations for reliability require special manufacturing techniques and testing for long tube life. The current ASTM/ASME specifications should be considered minimum requirements, and for long term reliability a number of additional special manufacturing processes and tests are essential. This paper summarizes many of the manufacturing and testing choices that should be specified to ensure high reliability. It identifies the advantages and disadvantages of each option and provides suggestions on what should be specified to ensure a reliable cost-effective feedwater heater tube for today’s applications.

JS777

Alloy Digest ◽  
1980 ◽  
Vol 29 (11) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Cost Effective ◽  
Heat Treating ◽  
Steel Company ◽  
High Alloy ◽  
Cost Effective Alternative ◽  
Resistance To Stress ◽  
Nickel Base

Abstract JS777 is a high-alloy, fully austenitic stainless steel developed for applications where corrosive conditions are too severe for the standard grades of stainless steel. It also provides a cost-effective alternative to more expensive nickel-base and titanium-base alloys. It has relatively high resistance to stress-corrosion cracking and to intergranular corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-377. Producer or source: Jessop Steel Company.

ALLVAC 13-8

Alloy Digest ◽  
2002 ◽  
Vol 51 (11) ◽  
Keyword(s):  
Stainless Steel ◽  
Precipitation Hardening ◽  
Cold Working ◽  
High Strength ◽  
Heat Treating ◽  
General Corrosion ◽  
Single Treatment ◽  
Good Resistance ◽  
Temperature Performance ◽  
Very High

Abstract Allvac 13-8 has good fabricability and can be age hardened by a single treatment in the range 510-620 deg C (950-1150 deg F). Cold working prior to aging enhances the aging. This martensitic precipitation-hardening stainless steel has very good resistance to general corrosion and stress-corrosion cracking. It develops very high strength and exhibits good transverse ductility and toughness in heavy sections. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-866. Producer or source: Allvac Metals Company.

ALLEGHENY LUDLUM TYPE 205

Alloy Digest ◽  
1997 ◽  
Vol 46 (10) ◽  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Magnetic Permeability ◽  
Cold Working ◽  
High Strength ◽  
Heat Treating ◽  
Austenitic Steels

Abstract Allegheny Stainless Type 205 is a chromium-manganese nitrogen austenitic high strength stainless steel that maintains its low magnetic permeability even after large amounts of cold working. Annealed Type 205 has higher mechanical properties than any of the conventional austenitic steels-and for any given strength level, the ductility of Type 205 is comparable to that of Type 301. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on corrosion resistance as well as heat treating, machining, and joining. Filing Code: SS-640. Producer or source: Allegheny Ludlum Corporation. Originally published March 1996, revised October 1997.

REMANIT 4306

Alloy Digest ◽  
1997 ◽  
Vol 46 (4) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Austenitic Stainless Steel ◽  
Cold Working ◽  
Heat Treating ◽  
Operating Conditions ◽  
Low Carbon ◽  
Corrosion Resistant ◽  
Temperature Performance

Abstract Remanit 4306 is a low-carbon chromium nickel austenitic stainless steel that is superior in corrosion resistance to type 302 (see Alloy Digest SS-99, revised September 1998). Due to its low carbon content, Remanit 4306 is intergranular corrosion resistant under continuous operating conditions up to 350 C (652 F). This grade is particular suitable for high degrees of cold working and for sequential drawing. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-679. Producer or source: Thyssen Stahl AG.

Pulsed eddy-current inspection of thin-walled stainless steel tubing

1989 ◽  
Vol 22 (3) ◽  
pp. 180
Author(s):  
C.V. Dodd ◽  
D.W. Koerner ◽  
W.E. Deeds ◽  
C.A. Pickett
Keyword(s):  
Stainless Steel ◽  
Eddy Current ◽  
Stainless Steel Tubing ◽  
Pulsed Eddy Current ◽  
Eddy Current Inspection ◽  
Steel Tubing ◽  
Thin Walled

Bipolar diathermy forceps with automatic irrigation

1985 ◽  
Vol 62 (6) ◽  
pp. 933-934 ◽  
Author(s):  
Tomio Ohta ◽  
Noboru Funatsu ◽  
Toshihiko Kuroiwa ◽  
Takayoshi Matsui
Keyword(s):  
Stainless Steel ◽  
Bipolar Diathermy ◽  
Content Type ◽  
Stainless Steel Tubing ◽  
Steel Tubing ◽  
Fine Print

✓ A method for providing a saline drip during bipolar diathermy is described. Stainless steel tubing is incorporated in both blades of standard bipolar forceps and connected to the irrigating line. Irrigation is started when the forceps are closed and is stopped when they are open.

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