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Hongyue Heavy Industry
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Execution Standards and Application Scope of Stainless Steel Seamless Pipes
High-quality carbon structural steel hot-rolled and cold-drawn (rolled) seamless steel tubes are used for boiler water pipes and locomotive boilers, equipped with superheated steam tubes, large smoke tubes, small smoke tubes, and arch-shaped brick tubes. Representative materials include 10 and 20 steel. Additionally, GB5310-1995 (Seamless Steel Tubes for High-Pressure Boilers) specifies high-grade carbon, alloy, and stainless steel heat-resistant seamless steel tubes suitable for the heating surfaces of high-pressure and above water-tube boilers.
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Introducing the characteristics of steel with excellent performance
It is primarily used in applications involving extensive wear conditions. The material exhibits excellent toughness and ductility. By employing surfacing welding techniques, the product’s thickness and hardness can be significantly enhanced, as the process ensures uniform deposition of high-hardness, self-protecting alloy wires onto the substrate. The number of composite layers can range from one to two—or even multiple layers—depending on the application. During the compounding process, uniform transverse cracks may develop due to the differing shrinkage rates of the alloy materials. This technology finds widespread use across industries such as metallurgy, coal mining, cement production, power generation, glass manufacturing, mining, construction materials, brickmaking, and more.
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Additionally, there are standards such as GB/T 17396-1998 (Hot-rolled seamless steel tubes for hydraulic supports), GB 3093-1986 (High-pressure seamless steel tubes for diesel engines), GB/T 3639-1983 (Cold-drawn or cold-rolled precision seamless steel tubes), GB/T 3094-1986 (Cold-drawn seamless steel tubes with special shapes), GB/T 8713-1988 (Precision seamless steel tubes with inner diameter for hydraulic and pneumatic cylinders), GB 13296-1991 (Stainless steel seamless steel tubes for boilers and heat exchangers), GB/T 14975-1994 (Structural stainless steel seamless steel tubes), GB/T 14976-1994 (Stainless steel seamless steel tubes for fluid transport), GB/T 5035-1993 (Seamless steel tubes for automotive propeller shaft sleeves), and API SPEC 5CT-2012 (Specification for casing and tubing).
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Introduction to Terms Related to the Processability of Metallic Materials
Castability (Moldability): Refers to the ability of a metallic material to produce qualified castings through the casting process. Castability primarily includes fluidity, shrinkage, and segregation. Fluidity is the capacity of molten metal to completely fill the mold, while shrinkage refers to the degree of volume reduction that occurs as the casting solidifies. Segregation, on the other hand, describes the uneven distribution of chemical composition and microstructure within the metal, resulting from differences in crystallization rates during the cooling and solidification process.
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Basic Knowledge of Steel Pipes
Steel pipe is a type of hollow, elongated steel material widely used as pipelines for transporting fluids such as oil, natural gas, water, coal gas, steam, and more. Additionally, when subjected to the same levels of bending and torsional strength, steel pipes are significantly lighter in weight, making them ideal for manufacturing mechanical components and engineering structures. They are also commonly employed in the production of various conventional weapons, including gun barrels and artillery shells.
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Shandong Hongyue Metal Technology Co., Ltd. is a service-oriented enterprise specializing in providing comprehensive steel supply solutions. We collaborate closely with numerous renowned domestic and international steel mills, as well as third-party partners, offering multi-faceted support for onshore and offshore wind energy projects, marine oil and gas engineering, shipbuilding, bridge construction, mining machinery, oil and gas pipelines, and municipal water supply projects—covering everything from integrated resource management and logistics to cost control, pricing strategies, and financial backing.
2022-10-13
Service Hotline:
+86-531-88991166 / 77 / 88 / 99
Fax: +86-53188685511
Contact number for the Marketing Department: +8618705316735/ +86-53188687877
Contact number for the Foreign Trade Department: +86-53188688252
Rizhao Plant Contact Number: +8618263350828
Contact number for wear-resistant construction machinery parts: +8613808931736
Contact number for new energy material pure iron products: +8613808939177
Email: 0006@sdtssteel.com
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Building 1, 3rd Floor, Area A2, Hanyu Financial & Business Center, High-Tech Zone, Jinan City, Shandong Province
Warehousing and Logistics Center:
The intersection of Gangcheng Avenue and Provincial Road 222 in Hushan Town, Lanshan District, Rizhao City, Shandong Province
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