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Hongyue Heavy Industry
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Execution Standards and Application Scope of Stainless Steel Seamless Pipes
Release date:
2022-10-13
High-quality carbon structural steel hot-rolled and cold-drawn (rolled) seamless steel tubes for boiler water pipes and locomotive boilers, equipped with superheated steam pipes, large smoke tubes, small smoke tubes, and arch brick pipes. Representative materials include 10 and 20 steels. 4. GB5310-1995 (Seamless Steel Tubes for High-Pressure Boilers) specifies high-quality carbon steel, alloy steel, and stainless steel heat-resistant seamless steel tubes used for the heating surfaces of high-pressure and above water-tube boilers.
High-quality carbon structural steel hot-rolled and cold-drawn (rolled) seamless steel tubes for boiler water pipes and locomotive boilers, equipped with superheated steam pipes, large smoke tubes, small smoke tubes, and arch brick pipes. Representative materials include 10 and 20 steels. 4. GB5310-1995 (Seamless Steel Tubes for High-Pressure Boilers) specifies high-quality carbon steel, alloy steel, and stainless steel heat-resistant seamless steel tubes used for the heating surfaces of high-pressure and above water-tube boilers. Representative materials include 20G, 12Cr1MoVG, and 15CrMoG, among others. 5. GB1479-2000 (Seamless Steel Tubes for High-Pressure Fertilizer Equipment) is a type of high-quality carbon structural steel and alloy steel seamless steel tube suitable for chemical equipment and pipelines, operating at temperatures ranging from -40 to 400℃ and pressures from 10 to 30 MPa. Representative materials include 20, 16Mn, 12CrMo, and 12Cr2Mo, among others. 6. GB9948-1988 (Seamless Steel Tubes for Oil Cracking). Primarily used in boilers, heat exchangers, and fluid-conveying pipelines in petroleum refineries. Representative materials include 20, 12CrMo, 1Cr5Mo, and 1Cr19Ni11Nb, among others. 7. Geological drilling steel tubes (YB235-70) are steel tubes used by geological departments for core drilling. According to their application, they can be classified into drill rods, drill collars, core barrels, casing pipes, and settling pipes. 8. "Seamless Steel Tubes for Diamond Core Drilling" (GB3423-82) are seamless steel tubes used for diamond core drilling rods, core barrels, and casing pipes. 9. Petroleum drill pipes (YB528-65) are seamless steel tubes with thickened inner and outer ends used as petroleum drill pipes. The steel tubes are divided into threaded and non-threaded types. Threaded tubes are connected using couplings, while non-threaded tubes are joined to tool joints via butt welding. 10. GB5312-1999 (Carbon and Carbon-Manganese Steel Seamless Steel Tubes for Marine Use) specifies carbon steel seamless steel tubes used for manufacturing first-class pressure-resistant piping systems, second-class pressure-resistant piping systems, boilers, and superheaters. The wall temperature of carbon steel seamless steel tubes does not exceed 450℃, while that of alloy steel seamless steel tubes exceeds 450℃. Representative materials include steels such as 360, 410, and 460. 11. Seamless steel tubes for automobile axle housings (GB3088-82) are high-quality carbon structural steel and alloy structural steel hot-rolled seamless steel tubes used for manufacturing automobile axle housings and drive axle housings. 12. High-pressure oil pipes for diesel engines (GB3093-86) are cold-drawn seamless steel tubes used for manufacturing high-pressure pipes in diesel engine fuel injection systems. 13. GB8713-88 "Precision Internal Diameter Seamless Steel Tubes for Hydraulic Cylinders" are precision internal diameter cold-drawn or cold-rolled seamless steel tubes used for manufacturing hydraulic cylinders. 14. Cold-drawn or cold-rolled precision seamless steel tubes (GB3639-83) are high-precision, dimensionally accurate, and surface-finished cold-drawn or hot-rolled precision seamless steel tubes used for mechanical structures and hydraulic equipment. Using precision seamless steel tubes in mechanical structures or hydraulic equipment can significantly save processing time, improve material utilization, and help enhance product quality. 15. "Structural Stainless Steel Seamless Steel Tubes" (GB/T14975-1994) are hot-rolled (extruded, expanded) and cold-drawn (rolled) seamless steel tubes. Our company is a professional manufacturer of stainless steel tubes, offering year-round supplies of various specifications of stainless steel tubes, stainless steel plates, stainless steel bars, stainless steel coils, 304 stainless steel tubes, 316L stainless steel tubes, precision stainless steel tubes, 321 stainless steel tubes, 310S stainless steel tubes, 309S stainless steel tubes, 304L stainless steel tubes, 310S stainless steel seamless tubes, 316 stainless steel seamless tubes, 316L stainless steel seamless tubes, 310S stainless steel square tubes, 309S stainless steel square tubes, stainless steel profile tubes, stainless steel flat bars, stainless steel angle bars, stainless steel round bars, and other products. We act as agents for well-known steel brands such as Tai Steel, Baosteel, Shangang, Zhangpu, Dagang, Jiugang, Lianzhong, and various imported stainless steels. Currently, tungsten steel is a major supplier to prominent domestic large-scale mold development companies, military enterprises, machinery processing plants, and the automotive industry.
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