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Implementation standards and scope of use of stainless steel seamless pipes
Release time:
2023-02-27 14:24
High-quality carbon structural steel hot-rolled and cold-drawn (rolled) seamless steel pipes are used for boiling water pipes and locomotive boiler superheated steam pipes, large smoke pipes, small smoke pipes and arch brick pipes. Representative materials are 10 and 20 steel. 4. GB5310-1995 (seamless steel pipes for high pressure boilers) is high-quality carbon steel, alloy steel and stainless steel heat-resistant seamless steel pipes used for the heating surface of water tube boilers with high pressure and above. Representative materials include 20G, 12Cr1MoVG, 15CrMoG, etc. 5. GB1479-2000 (seamless steel pipe for high-pressure chemical fertilizer equipment) is a high-quality carbon structural steel and alloy steel seamless steel pipe suitable for chemical equipment and pipelines. Working temperature -40~400℃, working pressure 10~30Ma. Representative materials are 20, 16Mn, 12CrMo, 12Cr2Mo and so on. 6. GB9948-1988 (seamless steel pipes for petroleum cracking). Mainly used in boilers, heat exchangers and pipelines for conveying fluids in petroleum smelters. Its representative materials are 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb and so on. 7. The steel pipe for geological drilling (YB235-70) is the steel pipe used by the geological department for core drilling. According to the application, it can be divided into drill pipe, drill collar, core pipe, casing and sedimentation pipe. 8. Seamless steel pipe for diamond coring (GB3423-82) is a seamless steel pipe for diamond core drilling, drill pipe, core rod and casing. 9. Oil drilling pipe (YB528-65) is a seamless steel pipe thickened inside and outside at both ends of oil drilling. Steel pipes are divided into two types: threaded and non-threaded. The threaded pipe is connected with the joint, and the non-threaded pipe is connected with the tool joint by butt welding. 10. GB5312-1999 (carbon steel and carbon-manganese steel seamless steel pipes for ships) is a carbon steel seamless steel pipe used to manufacture Class I pressure-resistant piping systems, Class II pressure-resistant piping systems, boilers and superheaters. The working temperature of the wall surface of carbon steel seamless steel pipe does not exceed 450°C, and the working temperature of the wall surface of alloy steel seamless steel pipe exceeds 450°C. Representative materials include 360, 410, 460 and other steel types. 11. Seamless steel pipes for automobile axle housings (GB3088-82) are high-quality carbon structural steel and alloy structural steel hot-rolled seamless pipes for manufacturing automobile axle housings. The axle housing of the drive axle. 12. Diesel engine high-pressure oil pipe (GB3093-86) is a cold-drawn seamless steel pipe used to manufacture high-pressure pipes for diesel engine injection systems. 13. Precision inner diameter seamless steel pipes for hydraulic and pneumatic cylinders (GB8713-88) are cold-drawn or cold-rolled precision seamless steel pipes with precise inner diameters for the manufacture of hydraulic and pneumatic cylinders. 14. Cold-drawn or cold-rolled precision seamless steel pipe (GB3639-83) is a cold-drawn or cold-rolled precision seamless steel pipe with high dimensional accuracy and good surface finish for mechanical structures and hydraulic equipment. The use of precision seamless steel pipes to manufacture mechanical structures or hydraulic equipment can greatly save processing hours, improve material utilization, and help improve product quality. 15. Stainless steel seamless steel pipes for structural use (GB/T14975-1994) are hot-rolled (extruded, expanded) and cold-drawn (rolled) seamless steel pipes. The company is a professional manufacturer of stainless steel pipes, supplying various specifications of stainless steel pipes, stainless steel plates, stainless steel rods, stainless steel coils, 304 stainless steel pipes, 316L stainless steel pipes, precision stainless steel pipes, 321 stainless steel pipes, 310S stainless steel pipes, 309s stainless steel pipes Tube all year round. , 304L Stainless Steel Pipe, 310S Stainless Steel Seamless Pipe, 316 Stainless Steel Seamless Pipe, 316L Stainless Steel Seamless Pipe, 304 Stainless Steel Seamless Pipe, 321 Stainless Steel Seamless Pipe, 309S Stainless Steel Seamless Pipe, 304L Stainless Steel Seamless Pipe, 316 Stainless Steel Pipe Square tube 316L stainless steel square tube 304 stainless steel square tube 310S stainless steel square tube 309S stainless steel square tube stainless steel shaped tube stainless steel flat steel stainless steel angle steel stainless steel round bar and other products. Agent sales of well-known steel products such as TISCO, Baosteel, Shanghai Iron and Steel, Zhangpu, Dageng, Jiugang, Lianzhong and various imported stainless steels. Tungsten steel has now become the main supplier of domestic well-known large-scale mold development companies, military enterprises, machinery processing plants and automobile manufacturing industries.
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