News

  • Sky Steel Construction (Tianjin) International Trading Co., Ltd.

    Sky Steel Construction (Tianjin) International Trading Co., Ltd.

    Sky Steel Construction (Tianjin) International Trading Co., Ltd. is a large-scale modern steel complex integrating sintering, ironmaking, steelmaking, continuous casting, steel rolling, and metal products production processes. The company has more than 300 employees and has advanced 12 high frequ...
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  • Merry Christmas from sky steel

    Merry Christmas from sky steel

    Wishing you a merry Christmas and a New Year bright with happiness fron sky steel. Hello, my friend, did you have a good Christmas night last night? On the occasion of the New Year, the staff of Tiangang brought new blessings to you.   Foreign Trade Department:  May the Christmas be a time ...
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  • Sky Steel’s winter solstice

    Sky Steel’s winter solstice

                  Winter solstice cold, strong affection. “Eating dumplings” on the Winter Solstice, a very important solar term in the Chinese lunar calendar, is a traditional custom in northern China. December 22 ushered in the annual Winter solstice. ...
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  • CHINESE STEELMAKERS GO FOR DANIELI ZEROBUCKET EAF TECHNOLOGY: EIGHT NEW UNITS ORDERED

    Orders for eight new Danieli Zerobucket electric arc furnaces have been placed by five Chinese steelmakers over the last six months.   Qiananshi Jiujiang, Hebei Puyang, Tangshan Zhongshou, Changshu Longteng and Zhejiang Yuxin relied on Danieli electric steelmaking Zerobucket technology for t...
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  • Description of Boiler Tube Grades & Standards

    CARBON STEEL SA178 Carbon steels show mild corrosion resistance and fair strength up to 1000F. However, their usage above 800F must take into account the susceptibility to graphitization. Graphitization has not been a significant problem in thicknesses encountered in boiler tubing. Use of heavy s...
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  • The purpose of preheating the pipe before welding the spiral steel pipe

    The purpose of preheating the pipe before welding the spiral steel pipe

    The purpose of preheating the spiral steel pipe before welding is as follows: (1) Preheating can slow down the cooling rate after welding so that hydrogen diffuses in the weld metal and escapes to avoid cracking caused by hydrogen. It can also reduce the degree of hardening of the weld and heat-a...
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  • Manufacturing Technology of Large Diameter Longitudinal Submerged Arc Welded Steel Pipe

    The large-diameter straight seam submerged arc steel pipe is mainly responsible for the pipeline transportation of marine and land oil and gas, oil and natural gas, coal and mineral paddles, etc. It is especially suitable for the “West-East Gas Pipeline” project currently under construction in my...
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  • The market opened after the holiday, the main contract of futures volume opened higher in the morning, and the intraday volatility became stronger.

    The market opened after the holiday, the main contract of futures volume opened higher in the morning, and the intraday volatility became stronger.

    The market opened after the holiday, the main contract of futures volume opened higher in the morning, and the intraday volatility became stronger. The spot market in various places started one after another, which was affected by the main force of the futures volume. In...
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