Manufacturing Companies for Hollow Pipe Sizes - stainless steel seamless square tubing – Zheyi
Manufacturing Companies for Hollow Pipe Sizes - stainless steel seamless square tubing – Zheyi Detail:
Stainless steel seamless square tubing, It’s a hollow strip of steel called a square pipe because its cross section is square. A large number of pipeline used for conveying fluid, such as oil, natural gas, water, gas, steam, etc., in addition, in bending, torsion strength at the same time, lighter weight, so also widely used in manufacturing machinery parts and engineering structures
Stainless steel square tube classification: square tube is divided into seamless steel tube and welded steel tube (seam pipe) two categories. According to section shape can be divided into square and rectangular tube, widely used is circular steel tube, but there are some semicircular, hexagonal, equilateral triangle, octagonal and other special-shaped steel tube.
For stainless steel square tube under fluid pressure to carry out hydraulic test to test its pressure capacity and quality, under the specified pressure does not leak, wet or expansion for qualified, some steel pipe according to the standard or the requirements of the side of the roll test, flaring test, flattening test.
Square tube specifications: 5*5~150*150 mm thickness :0.4~ 6.0mm
Square tube material: 304, 304L, TP304, TP316L, 316, 316L, 316Ti, 321, 347H, 310S
Stainless Steel Seamless Square Tubing, The Production Process
Round steel preparation → heating → hot rolling perforation → cutting head → pickling → polishing → lubrication → cold rolling process → degreasing → solution heat treatment → straightening → pipe cutting → pickling → finished product inspection.
Stainless Steel Seamless Square Tubing ，Performance Analysis
The metal can react with oxygen in the atmosphere to form an oxide film on the surface. The iron oxide formed on ordinary carbon steel will continue to oxidize, expanding the corrosion and eventually forming holes. This can be done using paint or an oxidation-resistant metal plating to protect the surface of carbon steel, but this coating is only a thin film. If the coating is damaged, the steel underneath begins to rust again. Whether the stainless steel tube is corroded is related to the chromium content in the steel. When the chromium content in the steel reaches 12%, the surface of the stainless steel tube generates a layer of passivation and dense chromium rich oxide to protect the surface and prevent further reoxidation. This oxide layer is extremely thin, through which the natural sheen of the steel surface can be seen, giving stainless steel a unique surface. If the chromium film is damaged once, the chromium in the steel and the oxygen in the atmosphere to regenerate the passivation film, continue to play a protective role. In some special environments, stainless steel will also appear some local corrosion and failure, but stainless steel and carbon steel is different, will not appear uniform corrosion and failure, so the corrosion allowance for stainless steel tube is meaningless.
Specifications
| Product Name | Stainless Steel Seamless Pipe | |
| Steel grade | 300 series | |
| Standard | ASTM A213, A312, ASTM A269, ASTM A778, ASTM A789, DIN 17456, DIN17457, DIN 17459, JIS G3459, JIS G3463, GOST9941, EN10216, BS3605, GB13296 | |
| Material | 304, 304L, 309S, 310S, 316, 316Ti, 317, 317L, 321, 347, 347H, 304N, 3 16L, 316N, 201, 202 | |
| Surface | Polishing, annealing, pickling, bright | |
| Type | hot rolled and cold rolled | |
| stainless steel round pipe/tube | ||
| Size | Wall thickness | 1mm-150mm(SCH10-XXS) |
| Outer diameter | 6mm-2500mm (3/8″-100″) | |
| stainless steel square pipe/tube | ||
| Size | Wall thickness | 1mm-150mm(SCH10-XXS) |
| Outer diameter | 4mm*4mm-800mm*800mm | |
| stainless steel rectangular pipe/tube | ||
| Size | Wall thickness | 1mm-150mm(SCH10-XXS) |
| Outer diameter | 6mm-2500mm (3/8″-100″) | |
| Length | 4000mm, 5800mm, 6000mm, 12000mm, or as required. | |
| Trade terms | Price terms | FOB, CIF, CFR, CNF, Ex-work |
| Payment terms | T/T, L/C, westen union | |
| Delivery time | Prompt delivery or as the order quantity. | |
| Export to | Ireland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Italy, India, Egypt, Oman, Malaysia, Kuwait, Canada, Viet Nam, Peru, Mexico, Dubai, Russia, etc | |
| Package | Standard export seaworthy package, or as required. | |
| Application | Widely used in petroleum, foodstuff, chemical industry, construction, electric power, nuclear, energy, machinery, biotechnology, paper making, shipbuilding, boiler fields. Pipes also can be made according to the customer’s required. |
|
| Contact | If you have any questions, please feel free to contact me. | |
| Container size | 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 24-26CBM 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 54CBM 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM |
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Chemical Composition
| Grade | C | Si | Mn | P | S | Ni | Cr | Mo |
| 201 | ≤0 .15 | ≤0 .75 | 5. 5-7. 5 | ≤0.06 | ≤ 0.03 | 3.5 -5.5 | 16 .0 -18.0 | - |
| 202 | ≤0 .15 | ≤l.0 | 7.5-10.0 | ≤0.06 | ≤ 0.03 | 4.0-6.0 | 17.0-19.0 | - |
| 301 | ≤0 .15 | ≤l.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 6.0-8.0 | 16.0-18.0 | - |
| 302 | ≤0 .15 | ≤1.0 | ≤2.0 | ≤0.035 | ≤ 0.03 | 8.0-10.0 | 17.0-19.0 | - |
| 304 | ≤0 .0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 8.0-10.5 | 18.0-20.0 | - |
| 304L | ≤0.03 | ≤1.0 | ≤2.0 | ≤0.035 | ≤ 0.03 | 9.0-13.0 | 18.0-20.0 | - |
| 309S | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 12.0-15.0 | 22.0-24.0 | - |
| 310S | ≤0.08 | ≤1.5 | ≤2.0 | ≤0.035 | ≤ 0.03 | 19.0-22.0 | 24.0-26.0 | |
| 316 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 |
| 316L | ≤0 .03 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 12.0 – 15.0 | 16 .0 -1 8.0 | 2.0 -3.0 |
| 321 | ≤ 0 .08 | ≤1.0 | ≤2.0 | ≤0.035 | ≤ 0.03 | 9.0 – 13 .0 | 17.0 -1 9.0 | - |
| 630 | ≤ 0 .07 | ≤1.0 | ≤1.0 | ≤0.035 | ≤ 0.03 | 3.0-5.0 | 15.5-17.5 | - |
| 631 | ≤0.09 | ≤1.0 | ≤1.0 | ≤0.030 | ≤0.035 | 6.50-7.75 | 16.0-18.0 | - |
| 904L | ≤ 2 .0 | ≤0.045 | ≤1.0 | ≤0.035 | - | 23.0·28.0 | 19.0-23.0 | 4.0-5.0 |
| 2205 | ≤0.03 | ≤1.0 | ≤2.0 | ≤0.030 | ≤0.02 | 4.5-6.5 | 22.0-23.0 | 3.0-3.5 |
| 2507 | ≤0.03 | ≤0.8 | ≤1.2 | ≤0.035 | ≤0.02 | 6.0-8.0 | 24.0-26.0 | 3.0-5.0 |
| 2520 | ≤0.08 | ≤1.5 | ≤2.0 | ≤0.045 | ≤ 0.03 | 0.19 -0. 22 | 0. 24 -0 . 26 | - |
| 410 | ≤0.15 | ≤1.0 | ≤1.0 | ≤0.035 | ≤ 0.03 | - | 11.5-13.5 | - |
| 430 | ≤0.1 2 | ≤0.75 | ≤1.0 | ≤ 0.040 | ≤ 0.03 | ≤0.60 | 16.0 -18.0 | - |
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We insist about the theory of growth of 'High excellent, Performance, Sincerity and Down-to-earth working approach' to offer you with great company of processing for Manufacturing Companies for Hollow Pipe Sizes - stainless steel seamless square tubing – Zheyi , The product will supply to all over the world, such as: Israel, UK, Armenia, "Good quality, Good service " is always our tenet and credo. We take every effort to control the quality, package, labels etc and our QC will check every detail during producing and before shipment. We have been willing to establish long business relationship with all those who seek the high quality products and good service. We've got set up a wide sales network across European countries, North of America, South of America, Middle East, Africa, East Asia countries.Please contact us now, you will find our expert experience and high quality grades will contribute to your business.
By Sarah from Ireland - 2017.09.30 16:36
Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
By Dolores from Honduras - 2017.09.16 13:44
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