General seamless steel tube production process can be divided into cold drawing and hot rolled, cold rolled seamless steel tube production process generally more complicated than hot rolled, three-roll rolling tube billet must first, after the extrusion sizing test, if there is no response after crack on the surface of pipe have to be cut after cutting machine, cutting grow about a meter of billet. Then enter the annealing process, annealing to use acidic liquid pickling, pickling should pay attention to whether there are a lot of bubbling on the surface, if there are a lot of bubbling shows that the quality of the steel pipe can not reach the corresponding standard. The appearance of cold-rolled seamless steel pipe is shorter than that of hot-rolled seamless steel pipe, the wall thickness of cold-rolled seamless steel pipe is generally smaller than that of hot-rolled seamless steel pipe, but the surface looks brighter than that of thick-walled seamless steel pipe, the surface is not too rough, the caliber is not too much burr. ①The main production process of hot rolled seamless steel pipe ( main inspection process) : Preparation and inspection of billet → heating of billet → perforation → rolling pipe → reheating of steel pipe → sizing (reducing) → heat treatment → straightening of finished pipe → finishing → inspection (non-destructive, physical and chemical inspection, table inspection) → storage ② The main production process of cold rolled (drawn) seamless steel tube: Billet preparation → pickling lubrication → cold rolling (drawing) → heat treatment → straightening → finishing → inspectionThe implementation of international GB8162-2008(structural pipe), GB8163-2008(fluid pipe), GB3087-2017(low and medium pressure boiler pipe), GB5310-2017(high pressure boiler pipe), GB6479-2013(fertilizer special pipe), GB9948-2013(petroleum cracking pipe), etc., Material: 10#, 20#, 35#, 45#, 16Mn, Q355B, Q345C, Q345D, 27SiMn, 15CrMo, 12Cr1MoV, 35CrMo, Cr5Mo, 10CrMo910, T91, etc. Our products are in accordance with national standards, applicable to engineering, petroleum, coal, textile, electric power, boiler, machinery, military, automobile bearings and other fields. With good reputation, high-quality products, strong strength and low price, the company enjoys a reputation in more than 30 provinces, cities, autonomous regions and municipalities directly under the central Government, and its products are deeply relied on by users. The company with a good reputation, quality products, strong strength, low price known throughout the country, products are deeply dependent on users. We are here to support our new and old customers from all walks of life over the years

Product Name	Stainless Steel coil
Length	as required
Width	3mm-2000mm or as required
Thickness	0.1mm-300mm or as required
Standard	AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc.
Technique	Cold rolled,hot rolled
Surface Treatment	Clean, blasting and painting according to customer requirement BA/2B/NO.1/NO.4/8K/HL
Thickness tolerance	±0.15mm
Material	201, 202, 301, 302, 303, 304, 304L, 304H, 310S, 316, 316L, 317L, 321,310S 309S, 410, 410S,420, 430, 431, 440A,904L
Quality test	we can offer MTC(mill test certificate)
MOQ	1tons.We also can accept sample order.
Shipment time	Within 2-15 workdays after receiving deposit or L/C
Export packing	Waterproof paper, and steel strip packed. Standard Export Seaworthy Package.Suit for all kinds of transport,or as required