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  • Production process of spiral steel pipe

    Spiral steel pipe is a spiral seam steel pipe made of strip steel coil as raw material, extruded at regular temperature, and welded by automatic double-wire double-sided submerged arc welding process. The spiral steel pipe sends the strip steel into the welded pipe unit, and after rolling by mult...
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  • Difference between cold rolled coil and hot rolled coil

    Cold rolled steel is steel produced by cold rolling. Cold rolling is a steel sheet obtained by further reducing the No. 1 steel sheet to a target thickness under room temperature conditions. Compared with hot-rolled steel, cold-rolled steel has a more precise thickness, a smooth and beautiful sur...
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  • Classification and use of corrugated steel plates

    Corrugated steel plate can be divided into aluminum zinc plated corrugated steel plate (galvalume steel plate), galvanized corrugated steel plate and aluminum corrugated steel plate according to different coating and material. Galvanized corrugated steel sheet is cold-rolled continuous hot-dip ga...
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  • Properties of Special Purpose Steels

    Special steel, that is, special steel, is the most important type of steel used in most industries of the national economy, such as machinery, automobiles, military industry, chemicals, household appliances, ships, transportation, railways and emerging industries. Special steel is an important sy...
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  • A36 American Standard Carbon Structural Steel Sheet Material Introduction

    1. Introduction of A36 steel plates ASTM 36 is the American standard carbon structural plates##185*3755*9190##. 2. A36 steel plates implementation standard Implement standard ASTM A36/A36M-03a, (equivalent to ASME specification) 3. Use of A36 steel plate This standard applies to riveted, bolted a...
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  • Large diameter straight seam welded pipes and tubes

    Large diameter straight seam welded pipe: also known as welded steel pipe, it is formed by bending steel plate or steel strip, the electric model is 0317. Inspection 8517611 standard, and then it is made by high frequency welding and submerged arc welding. According to the weld form, it is divide...
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  • A105 steel tube material

    A105 is the American ASTM standard number, and A represents ordinary carbon structural steel. Standard name: carbon steel forgings for pipe components. Because only one carbon steel forging is specified in this standard, A105 is even a carbon steel grade of forging. A105 is also a material code, ...
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  • Global crude steel production fell 3.0% year-on-year in August

    On September 22, the World Steel Association (WSA) released global crude steel production data for August 2022. In August, the crude steel output of 64 countries and regions according to the World Steel Association was 150.6 million tons, down 3.0% year-on-year. In August, the output of crude ste...
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  • Characteristics and application of wear-resistant steel plate

    Wear Resistant Steel Plate refers to special plate products designed for use in large-area wear conditions. The commonly used wear-resistant steel plate is a plate product made of a certain thickness of an alloy wear-resistant layer with high hardness and excellent wear resistance on the surface ...
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  • Global crude steel production fell 6.5% year-on-year in July

    On August 23, the World Steel Association (WSA) released global crude steel production data for July 2022. In July, the crude steel output of the 64 countries and regions included in the statistics of the World Steel Association was 149.3 million tons, a year-on-year decrease of 6.5%. In July, Af...
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  • High-quality Hot-dip Galvanized Steel Plate

    Hot-dipped galvanized steel sheets is a high-quality alloy coating product widely used in construction, automotive, home appliances and color coating, packaging and other industries. A large number of experimental studies have shown that the salient features of hot-dip galvanized steel sheet are ...
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  • The difference between cold rolled seamless steel pipes and hot rolled seamless steel pipes

    The difference between cold-rolled seamless steel pipe and hot-rolled seamless steel pipe Hot-rolled and cold-rolled steel are all steel or steel forming processes, they have a great impact on the organization and performance of steel, steel rolling mainly Hot rolling is the main method, and cold...
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