Stainless Steel Pipe
Stainless steel pipe product introduction
Stainless steel pipe is a kind of hollow long round steel, widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation, and other industrial transmission pipeline and mechanical structure parts. In addition, it is lighter in weight with the same bending and torsional strength, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also often used as furniture and kitchen utensils.
Shand Baowu Steel Group. Offer Stainless Steel Pipe In Various Thicknesses, Standard Cut Lengths. Provide Custom.
Stainless Steel Pipe
904L Stainless steel pipe 904L stainless steel pipe is an austenitic stainless steel with better corrosion resistance and low carbon properties for welding purposes. Shandong Baowu
430 Stainless steel pipe 430 stainless steel pipes are used for building decoration, fuel burner components, household appliances, and home appliance components. Shandong Baowu Steel Group.
321 Stainless steel pipe 321 stainless steel pipes are widely used as pipelines for transporting fluids, such as pipelines for transporting oil, natural gas, coal gas,
316L Stainless steel pipe 316L stainless steel pipe is a stainless steel seamless pipe. Used in decoration, medical fitness products, furniture, tableware manufacturing and other industries.
316 Stainless steel pipe 316 stainless steel pipes are widely used in industrial transportation pipelines and mechanical structural components such as petroleum, chemical industry, medical, food,
310S Stainless steel pipe 310S stainless steel pipe has good oxidation resistance and corrosion resistance, can continue to operate at high temperatures, and has good high
304L Stainless steel pipe 304L stainless steel pipe has excellent intergranular corrosion resistance and is a component that does not undergo heat treatment after welding. Shandong
304 Stainless steel pipe 304 stainless steel pipe has the characteristics of good processing performance and high toughness, and is used in industry, furniture decoration industry,
201 Stainless steel pipe 201 stainless steel pipe is characterized by acid resistance, alkali resistance, high density and no pinholes, etc. It is a high-quality material
Stainless Steel Pipe Available Specification
Stainless Steel Pipe
ISO9001,BV,SGS or as per customer.
200 series:201 202
300 series:301 302 303 304 304L 309 309S 310 316 316L 321 904L
400 series:410 420 430 440
Duplex stainless:2205 2507 etc.
No.1 No.3 No.4 HL 2B BA 4K 8K 1D 2D
According to customer needs
AISI, ASTM, GB,BS,EN,JIS,DIN
Kitchenware, home appliances, construction decoration, stairs, refrigerated container,
burner parts, exhaust parts of auto
Representative type of Ferrite stainless steel, with magnetic
Good cost performance, price stability
Good shaping capability, weld bending capability, high thermal conductivity, low thermal expansion
Strong corrosion and decorative effect
FOB, CFR, CIF, EXW.
T/T,L/C at sight
30%T/T in advance,balance 70% should be paid after receiving the copy of B/L.
|Plywood Case/Pallet or Other Export Package Suitable for Long Distance Shipping
Product Show of Stainless steel pipe
Application of stainless steel pipe
Stainless steel pipe is an economic profile of steel, which is an important product of the steel industry. It can be widely used in life decoration and industry. Many people in the market are used to making stair handrails, window guards, railings, furniture, etc. The common materials are 201 and 304.
Widely used in furniture, petroleum, chemical, boiler gas, plumbing fixtures, aerospace, paper, automotive, food, packaging machinery, medical, decoration, furniture, railings, and other engineering, hardware processing, shipbuilding, power plants, and other industries.
Factory Show of Stainless steel pipe
Shandong Baowu Steel Group Co., Ltd.
Our products have exported to more than 80 countries and regions, Europe, Africa,Southeast Asia, the Middle East,Central and South America are our important salesmarkets, having cooperated with many well-known foreign companies.
Why choose us
1.Over 20000 tons ofproduction capacity .
2.Over 2000 tons innRegular Stock
3.Many imported internationalfirst-class processing equipment .
4.Provide BV / SGS supervision forthe whole production process.
The corrosion resistance of stainless steel coils decreases as the carbon content increases. Therefore, the carbon content of most stainless steels is low, up to 1.2%, and some steels have a low ωC (carbon content) of even less than 0.03% (such as 00Cr12). The main alloying element in stainless steel coil is Cr (chromium). Only when the Cr content reaches a certain value, the steel has corrosion resistance. Therefore, the goods Cr (chromium) content of at least 10.5%. Stainless steel coil also contains Ni, Ti, Mn, N, Nb, Mo, Si, Cu and other elements.
Most of the requirements for use are to maintain the original appearance of the building for a long time. In determining which type of goods to choose, the main considerations are the required aesthetic standards, the corrosiveness of the local atmosphere and the cleaning system to be used. However, other applications are increasingly seeking structural integrity or impermeability. Examples include roofs and sidewalls of industrial buildings. In these applications, construction cost to the owner may be more important than aesthetics, and the surface may not be very clean. The use of 304 stainless steel coils in dry interior environments is quite effective.
Weldability. Different product uses have different requirements for weldability. A class of tableware generally does not require weldability, even including some cookware companies. However, most products require raw materials with good weldability, such as second-class tableware, insulation cups, steel pipes, water heaters, water dispensers, etc.
Corrosion resistance. Most stainless steel coil products require good corrosion resistance, such as Class I or Class II tableware, kitchen utensils, water heaters, water dispensers, etc.
Polishing performance. In today’s society, stainless steel coil products in the production process are generally polished, only a few products such as water heaters, drinking fountains, etc. do not need to be polished. Therefore, this requires raw materials with good polishing performance.
1. The need for pre-treatment
Pretreatment is an important treatment step before the surface of stainless steel coil parts enter surface treatment (including pickling, chemical polishing and electrochemical polishing, electroplating, passivation, black coating, coloring, chemical treatment, etc.). During the forming process of goods parts, the surface may adhere to oil stains, burrs, rough surfaces and oxides. Therefore, before surface treatment, oil stains, burrs, uneven surfaces and oxides must be removed in order to obtain subsequent satisfactory results through processing.
2. Treatment of removed dirt
Stainless steel coil surface pretreatment in the need to remove the dirt can be divided into two categories: organic and inorganic substances.
(1) organic dirt. Including mineral oil (such as diesel, oil, paraffin, gypsum, etc.) and animal oil, vegetable oil (such as soybean oil, camellia oil, rapeseed oil, lard, butter, etc.). These oils are mainly from the stainless steel coil zero cattle processing process used in the lubricant. , cutting oil, quenching oil, polishing paste and polishing paste, and fingerprints.
(2) Inorganic dirt. Including dirt, dust particles, oxides and other contaminants generated during the heat treatment process.
3. Pretreatment steps for stainless steel coil parts
(1) The surface is mechanically leveled. Eliminate the roughness of the stainless steel coil surface, through mechanical polishing and grinding to achieve a surface finish.
(2) Degreasing. Remove the surface oil and dirt.
(3) Acid washing. Remove the oxides on the surface.
(4) Weak corrosion. Activates the surface to be treated, removes the surface passivation film, and exposes the metal crystal structure.
Stainless steel is a high-alloy steel, with a large resistance to rolling deformation. In order to carry out high-efficiency and high-precision rolling, rigid rolling mills should be used, generally multi-roller cold rolling mill.
Special welding process is also a feature of cold-rolled stainless steel coil production.
In the production process of cold rolled stainless steel coil, the raw material (hot rolled coil) should be annealed, intermediate annealing should be carried out in the cold rolling process, and the final product should be annealed, so annealing is an important part of the production.
Cold-rolled stainless steel is a high-grade steel products, there are strict requirements for surface quality. Not only are metallurgical defects caused by the previous process not allowed, but also obvious defects caused by the cold rolling process.