N08330
A Part of History
Rolled Alloys and our OUTONG330 alloy were both created to service the need of the thermal process industries for a reliable source of a wrought alloy that could handle the rigors high temperature carburizing conditions and repeated quenching. Both our company and our OUTON330 alloy product began as parts of the Michigan Steel Castings Company (MISCO). The predecessor to OUTON330 was an alloy known as MISCO metal, it was a rolled version of the cast HT alloy and 35% nickel, 15% chromium. Its success came as a replacement to castings which were less ductile and fractured during harsh temperature cycling.
In 1953, Rolled Alloys became an independent company and MISCO metal became RA330 alloy. Over the past 60 years, we have applied our knowledge and close working relationship with the thermal process industry to modify RA330 to optimize its performance. These efforts include adjusting its chemistry to its current 35% nickel, 19% chromium, 1.25% silicon and controlled production techniques to ensure a product that has the optimal microstructure to withstand repeated thermal cycling.
Performance Profile
RA330 is a patented alloy designed specifically for the heat treat industry. To this day, RA330 outperforms the generic version made only to UNS N08330. In addition to meeting the requirements of UNS N08330, Rolled Alloys has tighter chemistry restrictions and proprietary heat treatments to produce an optimum product. Even the weld wire, RA330-04, has increased levels of manganese to avoid hot cracking. When buying a heat resistant alloy, insist on quality, insist it is RA330.
RA330 alloy is an austenitic heat and corrosion resisting alloy offering an exceptional combination of strength and resistance to carburization, oxidation and thermal shock. Carburization and oxidation resistance to 2100° F (1148° C) are enhanced by a nominal 1.25% silicon addition. RA330 alloy finds wide application in high temperature industrial environments where good resistance to the combined effects of carburization and thermal cycling are required. RA330 alloy remains fully austenitic at all temperatures and is not subject to embrittlement from sigma formation.
Specifications
AMS 5592
ASME SB 511, ASME SB 710
ASTM B 511, ASTM B 512, ASTM B 535, ASTM B 536, ASTM B 546, ASTM B 710, ASTM B 739
UNS N08330
Werkstoff 1.4886
Inventory
RA330® Expanded Metal, RA330® Hex Nuts, RA330® Pipe, RA330® Plate, RA330® Rod Coil, RA330® Round Bar, RA330® Sheet, RA330® Threaded Bar, RA330® Washers, RA330® Welding Products
Common Trade Names
UNS N08330, Alloy 330
Features
Oxidation resistance to 2100° F (1148° C)
Resistant to carburization and nitriding
Resistance to thermal shock
Good strength at elevated temperature
Metallurgical stability
Applications
Muffles
Corrugated Boxes
Retorts
Bar Baskets
Radiant Tubes
Carburization
Carburization resistance is a prime consideration when selecting an alloy for industrial heating applications. The 35% nickel content of RA330 has long been considered optimal for both mechanical properties and carburization resistance. Silicon, maintained at a nominal 1.25%, is recognized as the one element most potent in providing resistance to carburization. Carburization rates are also affected by mechanical and thermal strains which damage the protective scale. The relative carburization resistance of commercial alloys is most reliably studied by exposing the materials to actual service conditions.
Fabrication
RA330 is readily welded using RA330-04 weld fillers of matching composition. RA330-04-15 DC lime type electrodes are available from stock in popular sizes. RA330-04 bare welding wire is available as straight lengths for GTA welding or spooled for GMA welding.
|
|
Cr |
Ni |
Si |
C |
Mn |
P |
S |
Cu |
Fe |
|
MIN |
18.00 |
34.00 |
1.00 |
-- |
-- |
-- |
-- |
-- |
Balance |
|
MAX |
20.00 |
37.00 |
1.50 |
0.08 |
2.00 |
0.03 |
0.03 |
1.00 |
|
Hebei Outong non-ferrous metal products Co., Ltd. Was founded in 1999, In 2010 wuqiang economic development zone, No. 1 Fudongfive road, After two years of construction, to start in June 2013, the registered capital of 50 million yuan, covers an area of 17000 square meters, existing staff more than 300 people. After more than ten years of development, scale is growing, Hebei Outong has built in non-ferrous metal research and development, smelting, finishing, inspection, sales, in the intergration of modern large-scale private enterprises group. Hebei Outong has been adhering to the " innovation, integrity and service " business development ideas. In 2009 Hebei Outong through the ISO 9001: 2008 quality management system certification, In 2012 is listed as national key industries and technical innovation enterprise, Hebei Outong has won the " provincial leading enterprises ", " top ten private enterprises " and " the consumer trustworthy enterprise " and so on a number of honorary titles.
Hebei Outong mainly engaged in high performance, high precision super high conductivity of non-ferrous alloy meterials research and development, production and sales, products for copper and copper alloys, nickel and nickel alloys, titanium and titanium alloy and other high-tech new materials of all kinds of tubes, bars, lines, and special shaped material, mainly do products, however, is also committed to other alloy meterials research and development and the alternative. Hebei Outong annual output of 4 million tons, the annual output value of nearly 30 billion yuan, the products are widely used military-industrial, complex, aerospace, power generation equipment, desalination, petrochemical industry, high speed railway, electronic equipment, qutombile manufacturing, shipbuilding, submarine and other fields, Products to meet the demand of the domestic market at the same time, exported to many countiries such as Asia, Europe, the United States.
Hebei Outong R&D center has strong technology firce and strong scientific research strength, has a by more than 10 people, Dr, the well-known high quality R&D team composed of experts. Hebei Outong's production base has the first-class production equipment. Inaccordance with international standard operating procedures and the operation of the professional staff with perfect product testing system and professinal research and development equipment. Hebei Outong through independent research and development of high precision alloy tubes, bars, profiles, there are a dozen to replace improted products, filled the domestic blank.
In a period full of opportunities and challenges, Hebei Outong will be market-oriented, based on the talent, supported by technology, to capital as the link, take honest as fundamental, committed to build a strong, powerful core competence of international large-scale private enterprise group. Hebei Outong will use faith, the pursuit and dedication of our factory open new voyage, braving, create brilliant.
