The Chinese and Asian Art Forum. For Fans, Collectors and Dealers.
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The welded steel pipe has won praises for its uniform wall thickness and low price. So, can seamless Steel Pipes be replaced by welded steel pipes? The answer: NO
There are some reasons
1) HAZ is very fragile
Although it is rare now that the mechanical properties of the weld seam exceed the base metal itself, the weakest part of the welded steel pipe is not the weld seam, not the base metal, but the heat-affected zone of the weld. This place is the most vulnerable.
2)The limited upper wall thickness of the welded steel pipe
Most thick-walled steel pipes can only be seamless steel pipes instead of Welded Pipes
3)The H2S resistance of welded pipes is far worse than that of seamless pipes.
The requirements for seamless pipes on NACE MR0175 are: the S content must not exceed 0.010%. However, the requirements for Steel Plates and welded pipes are particularly strict: S must not exceed 0.003%. Although strict requirements are imposed on the steel plate, it can pass the HIC test, but the welding seam has to pass the test, which is still a very difficult problem. Not only must we choose the good welding material, but also the skilled welding process.
Oftentimes, using stainless steel components seems like a simple solution to corrosion on Steel Coils. You may see fins or tubes or other parts of the system show signs of corrosion, and it seems that the best option is to change the coil to stainless steel, solving the corrosion problem permanently. While this seems like a simple solution to a significant problem in the HVAC, industrial, and commercial systems where coils are found, the answer to the question “should I make an all-stainless coil?” is far more complex.
To better understand the potential impact of using an all stainless steel heat exchanger, let us evaluate an example 400,000 BTU/HR (33 tons or 119 kW) cooling coil. For the example, we will use 45° F water and a 36” x 45” coil with standard copper tubes and aluminum fins. The coil for this installation will be 12” deep, weigh 320 pounds and have a cost factor of 1.0. This is our base unit and is the component currently installed in the system.
Drilling or workover rigs, iconic symbols of the oil field, are not always required for drilling, completions or maintenance operations. Increasingly, the Oil Tubings unit is used for many good intervention operations and certain drilling applications. Coiled tubing (CT) refers to a continuous length of small-diameter steel pipe and related surface equipment as well as associated drilling, completion and workover, or remediation, techniques. Coiled tubing oilfield technology was initially developed for working on live, producing wells. More recently, this technology has gained wider acceptance among operators for an expanding range of workover and drilling applications and for its ability to reduce overall costs. The trend toward extended-reach wells favors CT for its capability to drill or to convey tools and equipment in high-angle wellbores.
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Peter Combs
Topics and categories on The BidAmount Asian Art Forum | Chinese Art
Kangxi vases, Kangxi dishes and chargers, Kangxi ritual pieces, Kangxi scholar's objects, Qianlong famille rose, Qianlong enamels, Qianlong period paintings, Qianlong Emporer's court, Fine porcelain of the Yongzheng period. Chinese imperial art, Ming porcelain including Jiajing, Wanli, Xuande, Chenghua as well as Ming jades and bronzes.
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The BidAmount Asian Art Forum | Chinese Art
A free Asian art discussion board and Asian art message board for dealers and collectors of art and antiques from China, Japan, Korea, Thailand, Cambodia, Vietnam and the rest of Asia. Linked to all of the BidAmount Asian art reference areas, with videos from plcombs Asian Art and Bidamount on YouTube. Sign up also for the weekly BidAmount newsletter and catalogs of active eBay listing of Chinese porcelain, bronze, jades, robes, and paintings.
The art of calligraphy - and for the ancient Chinese it certainly was an art - aimed to demonstrate superior control and skill using brush and ink. Calligraphy established itself as one of the major Chinese art forms during the Han dynasty (206 BCE - 220 CE), and for two millennia after, all educated men were expected to be proficient at it.
The Museum’s collections of Asian art span nearly five millennia and encompass the cultures of China, the Himalayas, India, Japan, Korea, and Southeast Asia. In 2007, the Museum launched an initiative to create dedicated galleries for the collection, beginning with a gallery for the arts of Korea ...
Chinese art is full of symbolism, in that artists typically seek to depict some aspect of a totality of which they are intuitively aware.
China Online Museum is the finest online museum of Chinese art. It features Chinese calligraphy, painting, ceramics, bronzes, carving, and other artworks.
Chinese Ceramics & Works of Art. Overview Upcoming auctions Contacts Auction results ... Christie’s sales of Chinese ceramics and works of art showcase centuries of Chinese history. Held throughout the year in London, New York, Paris and Hong Kong, they attract a wide audience of collectors and connoisseurs vying for pieces as diverse as ...
Explore Asian Art Week. Contact the Specialist Department. Chinese Paintings ... Senior Specialist, Head of Sale. ehammer@christies.com. Tel:+1 212 641 5760. Bid in-person or online for the upcoming auction:Fine Chinese Paintings on 10 September 2019 at New York. Bid in-person or online for the upcoming auction:Fine Chinese Paintings on 10 ...
Discover an abundance of must-see art from all corners of a vast continent at Christie’s NY Asian Art Week. From contemporary classical and Chinese paintings to works with exemplary provenance from the Art Institute of Chicago, our Rockefeller Paza galleries will be full of ancient treasures and contemporary masterworks in a salute to the vibrant arts of Asia.
Sold to benefit The Art Institute of Chicago’s Asian Art Acquisition Fund, the sale features 84 lots with a focus on Ming and Qing porcelains, and offers a rare insight into the taste for collecting Chinese ceramics and works of art in the Midwest from the end of the 19th century through the 1980s. Highlights include two Wanli wucai garlic-head vases, a Qianlong mark and period, blue and ...
Specialist, Chinese Paintings, Christie's London Dr Malcolm McNeill is a Specialist in Chinese Paintings at Christie’s, based in London. He previously worked as an assistant curator of the Chinese collections and the Victoria and Albert Museum in London, as a researcher at the British Museum, and as a translator and tour guide at the National Palace Museum in Taipei.
The Christie's Education 2020 Conference: The Chinese Art Market 18 Jun 2019 Christie’s Education is delighted to announce our first international academic conference in Asia which will take place in Hong Kong from 26-27 November 2020 at the Hong Kong Convention and Exhibition Centre and will run in parallel with Christie’s Hong Kong Autumn Auctions.
The summer Chinese Art sale in Hong Kong will feature works of art from several private collections, including Qing porcelains and textile from the collection of the legendary Chinese art dealer A. W. Bahr (1877–1959), fine gilt bronze Buddhist sculptures from an old Hong Kong collection, an East Asian collection of Qing dynasty wine cups and jades, and a Japanese collection of Song ceramics ...
Sotheby's Chinese Works of Art Department holds two auctions each year in London, New York, Hong Kong and Paris.
Chinese Art - View Auction details, bid, buy and collect the various artworks at Sothebys Art Auction House.
With more than 340 Chinese works of art dating from the Neolithic to the Republic periods, highlights of this sale include a selection of Qing Imperial monochromes from the collection of Arnold and Blema Steinberg, early ceramics from the Art Institute of Chicago and Chinese porcelain and works of art from the collection of Henry Arnhold.
Results: Sotheby's Asia Week achieved $52.4 million in six strong auctions, exceeding pre-sale estimates. With 76.5% of lots sold and 60.3% of lots surpassing high estimates, the Asian art sales at Sotheby's indicate continued collector interest in the finest works of art from China, India and and the Himalayas.
Today's sale of Important Chinese Art will proceed as planned with sessions at 10 AM and 2 PM EDT. Sotheby's will be monitoring the weather conditions throughout the day and will be available to coordinate alternative bidding options should conditions make it difficult for clients to attend the auction in person.
Bonhams Chinese Art department is renowned for offering the finest works of art representing the richness and breadth of China's artistic heritage, particularly Imperial porcelain, white and spinach green jades, cloisonné and Buddhist art. Specialised international auctions are held globally, including London, Hong Kong and San Francisco.
Bonhams : Chinese Works of Art We use cookies to remember choices you make on functionality and personal features to enhance your experience to our site. By continuing to use our site you consent to the use of cookies. Please refer to our privacy and cookie policies for more information.
Bonhams Fine Art Auctioneers & Valuers: auctioneers of art, pictures, collectables and motor cars. We use cookies to remember choices you make on functionality and personal features to enhance your experience to our site. By continuing to use our site you consent to the use of cookies. ... Chinese Art (US) General enquiries
Bonhams : Fine Chinese Art We use cookies to remember choices you make on functionality and personal features to enhance your experience to our site. By continuing to use our site you consent to the use of cookies. Please refer to our privacy and cookie policies for more information.
Bonhams Fine Art Auctioneers & Valuers: auctioneers of art, pictures, collectables and motor cars Bonhams : Asian Art We use cookies to remember choices you make on functionality and personal features to enhance your experience to our site.
Bonhams are international auctioneers of fine Chinese and Japanese art. We specialise in rare Imperial and Export Chinese ceramics and works of art, as well as Japanese ceramics, fine and decorative works of art from the Neolithic Period to the 20th century. View on map
Bonhams Fine Art Auctioneers & Valuers: auctioneers of art, pictures, collectables and motor cars. We use cookies to remember choices you make on functionality and personal features to enhance your experience to our site. By continuing to use our site you consent to the use of cookies. ... Asian Art Bonhams. Work. 22 Queen St.