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ASTM A105: STANDARD SPECIFICATION FOR CARBON STEEL FORGINGS FOR PIPING APPLICA……

ASTM A105 STANDARD SPECIFICATION FOR CARBON STEEL FORGINGS FOR PIPING APPLICATIONS 1. Scope 1.1 This specification covers forged carbon steel piping components for ambient- and higher-temperature service in pressure systems. Included are flanges, fittings, Valves, and similar parts ordered either to dimensions specified by the purchaser or to dimensional standards such as the MSS, ASME, and API specifications referenced in Section. Forgings made to this specification are limited to a maximum weight of 10000 lb [4540 kg]. Larger forgings may be ordered to Specification A 266/A 266M. Tubesheets and hollow cylindrical forgings for pressure vessel shells are not included within […]

2017-04-16 read more...
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ASTM A182 F91: Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged……

ASTM A182 Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service 1. Scope 1.1 This specification covers forged low alloy and stainless steel piping components for use in pressure systems. Included are flanges, fittings, Valves, and similar parts to specified dimensions or to dimensional standards, such as the ASME specifications that are referenced in Section 2. 1.2 For bars and products machined directly from bar (other than those directly addressed by this specification; see 5.4), refer to Specifications A 479/A 479M and A 739 for the similar grades […]

2017-04-16 read more...
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ASTM A 182/A 182M – 96: Forged or Rolled Alloy – Steel Pipe Flange……

ASTM A 182/A 182M – 96 Forged or Rolled Alloy – Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High Temperature Service This specification covers forged low alloy and stainless steel piping components for use in pressure systems. These include flanges, fittings, valves and similar parts manufactured to dimensional standards such as ASME/ANSI. Products made to this specification are limited to a maximum weight of 10,000 lb (4,540 kg). Note – Although low allow steels are covered by this standard, only stainless steels (martensitic, ferritic, austenitic and duplex) are included in this summary. Dimensions and Tolerances Dimensions and […]

2017-04-16 read more...
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Steel Prices Pressured by Growing Production

Steel prices were mixed on Monday. In China, the most active rebar contract was trading with a downside bias while in India prices ticked higher although volumes were thin. Steel prices have stabilized from their recent rally amid concerns that global steel production will overshoot demand. In China, steel output increased 6% in January and February, while India is producing a record amount of steel. According to Bloomberg, citing provisional steel ministry data, India’s steel output in the year through March jumped 11% to 101.3 million metric tons. The increase in output was to meet domestic rising domestic demand, while the […]

2017-04-12 read more...
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China steel outlook drags on raw materials futures

Concerns that China is producing too much steel put pressure on industrial raw materials markets on Monday, with key futures indicators, iron ore, coke and rebar all trading lower. “We saw steel output up 6 percent in January and February already, and the expectation is that demand will not be able to absorb all that,” Commonwealth Bank of Australia analyst Vivek Dhar said. “There is simply too much steel out there, we’re seeing iron ore fall as a result of that,” Dhar said. The most-active rebar on the Shanghai Futures Exchange was down 1.47 percent at 3,013 yuan ($436) a […]

2017-04-11 read more...
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What are pipe spools?

Industrial construction includes a wide range of projects, such as petroleum refineries and chemical and power plants. This type of construction involves intensive piping, which connects a variety of equipments and conveys process fluid and gas. Due to compressed schedule and limited space on site, industrial construction projects rely heavily on the offsite fabrication and assembly. Pipe spools allow pipe assembly in the early stages of a construction project. Also, pipes are easier to connect inside a climate-controlled facility than at the construction site, and pipe assemblies can be moved around and manipulated while they are being welded together off-site. […]

2017-04-10 read more...
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China threatens action against EU for unfair’ anti dumping duties on chinese s……

China’s Ministry of Commerce on Thursday urged the EU to reverse a decision to impose anti-dumping duties on a Chinese steel product, calling the decision a mistake and unfair, and vowed to take action to protect Chinese firms. Mr Wang Hejun, head of the MOFCOM’s Trade Remedy and Investigation Bureau, said in a statement following the EC decision that “The decision is the result of the unfair, unreasonable use of the “surrogate country” prices references method.” Mr Wang noted that the commission had chosen the US as a surrogate country to judge if the product was being sold in the […]

2017-04-07 read more...
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How much more steel China will need for its new megacity

China will set up a new special economic zone, the Xiongan New Area, in Hebei Province, the government announced on Saturday. The Xiongan New Area, about 100 kilometers southwest of Beijing, will cover three counties, Xiongxian, Rongcheng and Anxin. China‘s new project to build a megacity on the outskirts of Beijing will drive steel demand, with the country likely gobbling up an extra 12 to 14 million metric tons of the commodity a year if plans are implemented in 10 years, Citi Research analysts said in a note released on Tuesday. While the amount will just be a minuscule proportion of the nearly 1.63 […]

2017-04-06 read more...
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Myanmar-China crude oil pipeline to commence next month

Officials said that after a two-year delay, the Myanmar-China crude oil pipeline is expected to begin operating in May. The respective parties of Myanmar and China were discussing the terms and conditions on the crude oil pipeline operation since its soft opening launched in early 2015. An official from Southeast Asia Crude Oil Pipeline (SEAOP) which is responsible for the pipeline’s operation, said that “The crude oil pipeline is getting ready for operation. We are awaiting instructions from the higher ups and we expect it will begin in May.” The contract to transport crude oil was signed in Nay Pyi […]

2017-04-06 read more...
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Why the stainless steel pipe to pickling

The corrosion resistance of the stainless steel pipe is good, the high temperature oxidation resistance is good, but also has the good low temperature performance and the mechanical and processing performance. Therefore, a large number of oil, chemical, nuclear engineering, power, marine, aerospace, medicine, light industry, textile and other fields. The main purpose of the use of stainless steel pipe is anti-corrosion rust. Corrosion resistance of stainless steel pipe is mainly rely on the surface passivation film, once the film is incomplete or defective, stainless steel pipe will still be corrosion. In this regard, the project will generally be pickling […]

2017-04-04 read more...