Execution standard and scope of use of stainless steel seamless pipe

High-quality carbon structural steel hot-rolled and cold-drawn (rolled) seamless steel pipes for boiling water pipes and locomotive boilers with superheated steam pipes, large smoke pipes, small smoke pipes and arch brick pipes. The representative material is 10, 20 steel. 4. GB5310-1995 (seamless steel pipe for high-pressure boiler) is a high-quality carbon steel, alloy steel and stainless heat-resistant seamless steel pipe used for the heating surface of water-tube boilers with high pressure and above. The representative materials are 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 with a working temperature of -40~400℃ and a working pressure of 10~30Ma. The representative materials are 20, 16Mn, 12CrMo, 12Cr2Mo, etc. 6. GB9948-1988 (seamless steel pipes for petroleum cracking). Mainly used in boilers, heat exchangers and their transmission fluid pipelines in petroleum smelters. Its representative materials are 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb, etc. 7. The steel pipe for geological drilling (YB235-70) is a steel pipe used by the geological department for core drilling. It can be divided into drill pipe, drill collar, core pipe, casing and sedimentation pipe according to the purpose. 8. Seamless steel pipe for diamond core drilling (GB3423-82) is a seamless steel pipe for drill pipe, core rod and casing for diamond core drilling. 9. Oil drilling pipe (YB528-65) is a seamless steel pipe that is thickened internally or externally at both ends of oil drilling. The steel pipe is divided into two types: threading and non-threading. The threading pipe is connected with the joint, and the non-threading pipe is connected with the tool joint by the method of butt welding. 10. GB5312-1999 (carbon steel and carbon-manganese steel seamless steel pipes for ships) is a carbon steel seamless steel pipe for the manufacture of Class I pressure-resistant piping systems, Class II pressure-resistant piping systems, boilers and superheaters. The working temperature of the carbon steel seamless steel pipe wall does not exceed 450 ℃, and the working temperature of the alloy steel seamless steel pipe wall exceeds 450 ℃. The representative material is 360, 410, 460 steel grades, etc. 11. Seamless steel pipes for automobile axle casings (GB3088-82) are high-quality carbon structural steel and alloy structural steel hot-rolled seamless pipes for manufacturing automobile axle casings and axle casings of drive axles. 12. High-pressure oil pipe for diesel engine (GB3093-86) is a cold-drawn seamless steel pipe for manufacturing high-pressure pipe of diesel engine injection system. 13. Precision inner diameter seamless steel pipe for hydraulic and pneumatic cylinders (GB8713-88) is a cold-drawn or cold-rolled precision seamless steel pipe with precise inner diameter for manufacturing 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 machining hours, improve material utilization, and help improve product quality. 15. Structural stainless steel seamless steel pipe (GB/T14975-1994) is a hot-rolled ( Extrusion, expansion) and cold drawn (rolled) seamless steel pipes. The company is a professional stainless steel pipe manufacturer, supplying various specifications of stainless steel pipe, stainless steel plate, stainless steel rod, stainless steel coil, 304 stainless steel pipe, 316L stainless steel pipe, precision stainless steel pipe, 321 stainless steel pipe, 310S stainless steel pipe, 309s stainless steel pipe 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 square pipe Pipe, 316L stainless steel square pipe, 304 stainless steel square pipe, 310S stainless steel square pipe, 309S stainless steel square pipe, stainless steel special-shaped pipe, stainless steel flat steel, stainless steel angle steel, stainless steel round steel and other products. Agent sales of Taigang, Baosteel, Shanggang, Zhangpu, Dageng, Jiugang, Lianzhong and other well-known steel products and various imported stainless steel. Tungsten steel is now the main supplier of domestic famous large-scale mold development companies, military enterprises, machining factories and automobile manufacturing industries.