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seamless steel tube

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  • [Industry News] Production process of seamless steel pipe

    ①Main production process of hot-rolled seamless steel pipe (main inspection process):Tube billet preparation and inspection → tube billet heating → perforation → tube rolling → waste tube reheating → fixed (reduced) diameter → heat treatment → finished tube straightening → finishing → inspection (no

  • [Industry News] Seamless steel tube product details

    10# seamless steel pipe mechanical properties:Tensile strength σb (MPa): ≥410 (42) Yield strength σs (MPa): ≥245 (25) elongation δ5 (%): ≥25 shrinkage rate ψ (%): ≥5, hardness: unheated ,≤156HB, sample size: sample size 25mm  10# Seamless steel pipe instructions   Used in various fields such as auto

  • [Industry News] In June, export steel hit a new low in 8 years, and import steel hit a new high in 10 years.

    Futures Daily News (Reporter Tan Yamin) According to data from the General Administration of Customs on July 14, 2020, China exported 3.701 million tons of steel products in June 2020, a decrease of 699,000 tons from the previous month, a year-on-year decrease of 30.3%; The export of steel products

  • [Industry News] Seamless steel tube wall thickness and pressure comparison table

    1. In the table, CS stands for carbon steel seamless pipe, applicable materials GB8163 "Seamless steel pipe for fluid transportation", GB3087 "Seamless steel pipe for low and medium pressure boilers", GB6479 "High-pressure seamless steel pipe for fertilizer equipment" GB9948 "Petroleum cracking" Use

  • [Industry News] What is the cold expansion technology of straight seam steel pipes?

    Straight seam steel pipe expansion is a pressure processing technology that uses hydraulic or mechanical means to apply force from the inner wall of the steel pipe to expand and expand the steel pipe radially outward. The mechanical method is simpler and has a higher speed than the hydraulic met

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