Kuaima Steel’s stainless steel pipe inventory includes seamless pipes and welded pipes, which are cold worked, annealed and pickled
Our team of engineers can help customers with high quality surface finishes according to their requirements.
Available pipes surface finishes: NO.1, 2B, 2H(Rerolled Bright), BA, No.4, 8K(Mirror), HL(Hairline), Polishing Bright, etc.
|product name||Stainless steel pipe|
|440A.440B.440C.904L.2205.2507.2520 ect. Or Customized|
|Standard||GB, AISI, ASTM, ASME, EN, BS, DIN, JIS|
|Surface||Satin Finish(180#.240#.320#).,Bright Finish(400#,600#,mirror),|
|(HL/Brushed),Ti-gold, Glossy matt,dull and so on.|
|specifications||Outer diameter||6mm-630mm or customized|
|Wall thickness||0.1-30mm or customized|
|Length||0.3-15.8m or customized|
|Technique||Cold rolled||welding or customized|
|Test and Inspection||Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT|
|Austenitic Stainless Steel||201, 301, 303, 304, 304L, 309S, 310S, 316/316L, 321, 347, 904L, etc|
|Martensitic Stainless Steel||410, 414, 416, 416, 420, 431, 440A, 440B, 440C, etc|
|Duplex Stainless Steel||S31803, S32101, S32205, S32304, S32750, etc|
|Ferritic Stainless Steel||429, 430, 433, 434, 435, 436, 439, etc|
ASTM A213: Seamless Ferritic and Austenitic Alloy Steel Pipes for Boilers, Superheaters, and Heat Exchangers.
ASTM A269: Boilers, Heat Exchangers, Superheaters, and Condensers.
ASTM A312: Piping for Corrosive Fluids.
ASTM A514: For medium and high temperature service boilers, pressure vessels.
ASTM A789: Petrochemical industry, fertilizer industry, oil refining industry, oil and gas industry.
DIN: 17456/17458: Pipes for construction pipes, food, pharmaceutical and automotive industries, household installation and decorative purposes.
JIS: G3459: Pipes for corrosion resistance, low temperature and high temperature service.
JIS G3463: Mechanical industry, chemical industry, thermal equipment, mining, construction and decoration.
When you choose to buy high quality stainless steel pipe, we need to understand some important points before we start.
Stainless steel pipe is a high-alloy steel product suitable for various fields and is widely used in power generation, renewable energy, pulp and paper, process piping, food and beverage, oil and gas due to its overall corrosion resistance and machinability , mining, ocean.
Stainless steel tube is a kind of hollow long round steel.Stainless steeltubes are mainly used in piping systems for transporting liquids or gases.
We manufacture steel pipes from alloy steel containing nickel and chromium, which makes stainless steel corrosion-resistant.
Stainless steel tubing is oxidation resistant and a low maintenance solution for high temperature and chemical applications. Because stainless steel tubing is easy to clean and sterilize, it is also required for use in food, beverage and pharmaceutical applications.
Stainless steel tubes mainly go through 14 production processes: a. Round steel preparation; b. heating; c. Hot rolling perforation; d. Cut the head; e. Pickling; f. Grinding; g. Lubrication; h. Cold-rolled processing; i. Degreasing; j. Solution heat treatment; k. Straightening; l. Cut pipe; m. Pickling; n. Product testing.
The density of 304 stainless steel is 7.93g/cm3, and the density of 316 stainless steel is 8.03g/cm3. In essence, there is no obvious difference between the two, and they are both a kind of many stainless steels, which have the characteristics of acid resistance, alkali resistance, easy processing and high toughness.
First of all, in terms of application, 304 stainless steel tubes are widely used, and they have good corrosion resistance. It can be used for anti-theft windows, stair handrails, guardrails, anti-theft doors, automobile exhaust tubes, medical equipment, etc. On the basis of 304, 316 has added elements of Ni, Cr, and Mo, which have higher density, better corrosion resistance and high temperature resistance than 304, so it is widely used in various industrial fields (seawater equipment, chemistry, dyes , papermaking, oxalic acid, fertilizer and other production equipment).
Secondly, the chemical composition and performance are compared: the chemical name of 304 stainless steel pipe is: 06Cr19Ni10, and the chemical name of 316 stainless steel pipe is: 06Cr17Ni12Mo2. 06 means the carbon content is lower than 0.08, Cr19 means the chromium content is 19, NI10 means the nickel content is 10 . Among them, the element that determines the rust and corrosion resistance of stainless steel pipes is nickel, and its price is relatively expensive.
The purity and thickness of 304 and 316 are different. 316 has better corrosion resistance and better rust resistance. So the price will be more expensive.
Our professional management team sources only high quality stainless steel materials and ensures that all materials we use meet our factory standards.
Our original factory origin is very famous, such as Taigang, Baowu, Jiugang, Pohang, Outokumpu.
Only in this way, we can provide high-quality cold-rolled and hot-rolled stainless steel products to global users.