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delta ferrite

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Journal Articles
Alloy Digest (1978) 27 (1): SS-346.
Published: 01 January 1978
... CARPENTER 15Cr-5Ni offers high strength and excellent corrosion resistance. Similar to Carpenter Custom 630 (17Cr-4Ni) in composition and properties, Carpenter 15Cr-5Ni is chemically balanced to eliminate all but trace amounts of delta ferrite, thus providing superior transverse toughness...
Journal Articles
Alloy Digest (1991) 40 (8): SS-522.
Published: 01 August 1991
... LESCALLOY 15-5 VAC-ARC is a precipitation hardening martensitic stainless steel with minimal delta ferrite. Vacuum arc remelting in the production of the alloy provides a low gas content, clean steel with optimum transverse properties. This datasheet provides information on composition, physical...
Journal Articles
Alloy Digest (1994) 43 (5): SS-567.
Published: 01 May 1994
... Alloy CE20N is commonly referred to as HF-modified. It is an austenitic stainless steel casting which contains 5-15% delta ferrite. The major application area is in refinery hydrocracking and hydrotreating service. This datasheet provides information on composition, physical properties...
Journal Articles
Alloy Digest (2014) 63 (10): SS-1186.
Published: 01 October 2014
...: Grade 441 is an implantable austenitic stainless steel grade that involves consumable electrode remelting. A highly stringent manufacturing process ensures that the structure is extremely clean in terms of inclusion population and extremely homogeneous, with no delta ferrite. In addition, good...
Journal Articles
Alloy Digest (2016) 65 (6): SS-1247.
Published: 01 June 2016
... classical martensitic stainless steels. The balance between alloying elements, Cr, Ni and C, in UGI 4057 Air has been chosen to obtain an almost fully martensitic structure after austenitization (with limited amounts of retained austenite and delta ferrite). The delta ferrite is nearly totally eliminated...
Journal Articles
Alloy Digest (1990) 39 (12): SS-517.
Published: 01 December 1990
... will be about 10% delta ferrite in austenite. To avoid transformation to martensite. store in heated area during cold winter months. Ann4 (L) conditon: Heat to 1700-1750°F. Conditioning and transformation of austenite: DA (double aged) condition: Heat to 1350-WWF/3 h, air cool to 80 Fmax. Precipitation...
Journal Articles
Alloy Digest (2017) 66 (1): SA-776.
Published: 01 January 2017
... To stabilize martensite microstructure with precipitation of M23C6 and MC Silicon To increase steam oxidation resistance Tungsten Solid solution strengthening and precipitation strengthening by Laves phase Cobalt To suppress delta ferrite formation Vanadium Precipitation strengthening by forming MX Niobium...
Journal Articles
Alloy Digest (1985) 34 (1): SS-457.
Published: 01 January 1985
... uniformity. Highertemperaturesand/or longer times cause excessive grain growth and can nucleate delta ferrite. Do not forge at temperatures below 1750°F (954°C). To obtain a tine grain size and maximum toughness, forgings should be cooled below 60°F ( 16GC) before further processing. Parts must be solution...
Journal Articles
Alloy Digest (1984) 33 (9): SA-402.
Published: 01 September 1984
...-temperature high-strength characteristics of this grade. The composition is balanced to minimize delta ferrite content which is present in other similar analyses. Extensive testing at Oak Ridge National Laboratories shows optimum mechanical properties are achieved in the normalized and tempered condition...
Journal Articles
Alloy Digest (2008) 57 (1): SS-1006.
Published: 01 January 2008
... treatment. Aging and Microstructure. CF8C-Plus is a fully austenitic stainless steel developed using an engineered microstructure approach. Standard CF8C contains delta ferrite that then rapidly transforms to sigma phase during service aging and causes a significant reduction in creep resistance and ambient...
Journal Articles
Alloy Digest (2013) 62 (10): SS-1158.
Published: 01 October 2013
... and possibly a small amount of retained delta ferrite. ATI 436S and Precision Rolled Strip are trademarks of ATI Properties, Inc. Fig. 1 Tensile properties as function of temperature Fig. 2 S/N curve (reverse bending) for 0.762 mm (0.030 in.) thick strip DOI: 10.31399/asm.ad.ss1158 Fabricability: Forming...
Journal Articles
Alloy Digest (1962) 11 (4): SS-130.
Published: 01 April 1962
... properties. Type 418 Special is a modification of former AISI type 418; the only difference is Lhat nickel has been added to prevent the formation of delta ferrite. Up to llOOOF, its stress rupture strength is equal or su- perior to the austenitic stainless steels. It can be hardened to 45 Rockwell C minimum...
Journal Articles
Alloy Digest (1988) 37 (7): SS-88.
Published: 01 July 1988
... in this steel serves two purposes: it improves toughness and it produces an austenitic structure at high-temperatures where otherwise some unwanted delta ferrite would form at the chromium/carbon levels that are specified. Softening is attained by subcritical rather than fuU annealing. The steel is workable...
Journal Articles
Alloy Digest (1969) 18 (3): SS-222.
Published: 01 March 1969
... of temperatures no higher than necessary to accomplish the deformations required, and to avoid excessive holding times at forging or rolling temperatures; particularly at temperatures above 2100oF. to minimize the formation of delta ferrite. Initial forging tempera- tures of 2lOOoF to 21500F and finishing...
Journal Articles
Alloy Digest (2007) 56 (6): SS-991.
Published: 01 June 2007
...% delta ferrite). The alloy is not sensitive to cold cracking phenomenon. All welding processes can be used including filler processes. For electrode filler material, use E347-15 or E347-16 (ASME Section II Part C SFA5.4). For wire filler material use ER 347 (ASME Section II Part C SFA 5.9). Preheating...
Journal Articles
Alloy Digest (2007) 56 (4): SS-989.
Published: 01 April 2007
... thickness. When pro- perly annealed, this alloy is primarily austenitic at room temperature, with finely dispersed niobium carbides and possibly a small amount of retained delta ferrite. Formability: A relatively narrow range of temperatures can be used for effective hot working of most austenitic stainless...
Journal Articles
Alloy Digest (2005) 54 (5): SS-929.
Published: 01 May 2005
... preliminary testing to check for the freedom from cracking and thoroughness of the weld metal. Due to a delta ferrite primary type of solidification, the hot cracking risk of the weld metal or the HAZ is reduced. Generally, no preheating must be done, but the interpass temperature must be limited to 120 °C...
Journal Articles
Alloy Digest (1998) 47 (7): SS-723.
Published: 01 July 1998
... range is necessary to keep the carbides in solution. For thin sections. air cooling is sufficient for this purpose white heavier secrions have to he water quenched. !3tnMn~. When properly annealed. type 301 is austenitic. It is possible that small quantities of delta ferrite are present. Cold rolling...
Journal Articles
Alloy Digest (1970) 19 (2): SS-234.
Published: 01 February 1970
... steel of intermediate alloy content. It is heat treatable to high strength, has good corrosion resistance, and may be machined in either the annealed or fully hardened conditions. Its composition is balanced so as to be. austenitic and free of delta ferrite at annealing temperatures from 1500 to 1650oF...
Journal Articles
Alloy Digest (2007) 56 (9): SS-997.
Published: 01 September 2007
... be cooled to black within 3 min by air cooling, this practice is preferred. When properly annealed, type 201 is predominantly austenitic; however, it may contain small amounts of delta ferrite. Cold rolling promotes the formation of martensite. Exposure to the temperature range 427 816 °C (800 1500 °F...