Complaint
Stainless steel pipe is a kind of hollow long round steel, which is mainly used in industrial transportation pipelines and mechanical structural components such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instrument and so on. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used as furniture and kitchenware.
It has the following characteristics:
1. Weldability
Different product uses have different requirements for welding performance. A class of tableware generally does not require welding performance, and even includes some pot enterprises. However, most products require good welding performance of raw materials, such as second-class tableware, thermos cups, steel pipes, water heaters, water dispensers, etc.
2. Corrosion resistance
Most stainless steel products require good corrosion resistance, such as Class I and II tableware, kitchen utensils, water heaters, water dispensers, etc. Some foreign merchants also do corrosion resistance tests on the products: use NACL aqueous solution to heat it to boiling, and pour it after a period of time. Remove the solution, wash and dry, and weigh the weight loss to determine the degree of corrosion (Note: When the product is polished, the Fe content in the abrasive cloth or sandpaper will cause rust spots on the surface during the test)
3. Polishing performance
In today's society, stainless steel products are generally polished during production, and only a few products such as water heaters and water dispenser liner do not need polishing. Therefore, this requires that the polishing performance of the raw material is very good. The main factors that affect the polishing performance are as follows:
(1)Surface defects of raw materials. Such as scratches, pitting, pickling, etc.
(2)The problem of raw materials. If the hardness is too low, it will not be easy to polish when polishing (the BQ property is not good), and if the hardness is too low, the orange peel phenomenon is easy to appear on the surface during deep drawing, thus affecting the BQ property. BQ properties with high hardness are relatively good.
(3)For the deep-drawn product, small black spots and RIDGING will appear on the surface of the area with a large amount of deformation, thus affecting the BQ performance.
4. Heat resistance
Heat resistance means that stainless steel can still maintain its excellent physical and mechanical properties at high temperatures.
Influence of carbon: Carbon is an element that strongly forms and stabilizes austenite and expands the austenite region in austenitic stainless steels. The ability of carbon to form austenite is about 30 times that of nickel, and carbon is an interstitial element that can significantly increase the strength of austenitic stainless steel through solid solution strengthening. Carbon can also improve the stress corrosion resistance of austenitic stainless steel in highly concentrated chloride (such as 42% MgCl2 boiling solution).
| Product name | Stainless Steel Pipe |
| Place of Origin | Shandong, China |
| Brand Name | Zhong Heng |
| Application | Decoration, Kitchen, etc. |
| Thickness | As your requirement |
| Standard | JIS, ASTM EN JIS DIN GB |
| Processing Service | Bending, Welding, Decoiling, Punching, Cutting |
| MOQ | 1 Ton |
| Surface | BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D |
| Color | Custimized |
| Payment | 30%TT+70%TT |
| Shape | Flat, Sheet, Coil, Plate |
| Material Grade | TP304 TP304L TP316 TP316L TP347 TP347H TP321 TP321H TP310 TP310S |
| TP410 TP410S TP403 | |
| S31803/S32205 S32750 S32760 | |
| Outer Diameter | Seamless Pipe: 4mm-812.80mm |
| Welded Pipe: single slit(Φ8mm-Φ630mm); girth(Φ630mm-Φ3000mm), | |
| Thickness | Seamless Pipe: 0.5mm - 60mm |
| Welded Pipe: single slit(0.5mm-25mm);girth(3mm-45mm) | |
| Length | 5.8-6.1 m or as customers' request |
| Tolerance | Acording to the Standard. |
| Surface | 180G, 320G, 400G Satin / Hairline |
| 400G, 500G, 600G or 800G Mirror finish | |
| Test | UT, ET, HT, RT,ect, and others according to the standard,or as the requests of the customers |
| Certificate | ISO9001-2008,ASME, PED |
| Delivery Time | 7-30 Days, Depends on quantity |
We have multiple quality system certifications to ensure that high-quality products reach your hands.
1. Factory Direct more than 20 years of production and operation
Standard Export Seaworthy Package,or as Required.
1. What is your payment terms?
Zhongheng Steel prefers 30%TT before inspection and the rest 70% against BL. However, our price term is negotiable. Multiple payment terms are available from us.
2. Which payment method can I choose?
Zhongheng Steel accepts all types of secured payment methods. Bank transaction, Alibaba Trading Assurance, Paypal and etc are all available from us. Please feel free to contact us about your preferred payment method.
3. Is sample providing service available?
Zhongheng Steel provides free samples to our clients. We usually also cover the sample shipping cost. Please feel free to order a sample from us.
4. Is customization available?
Zhongheng Steel's expert equipment and highly-trained workers are capable of manufacturing highly customized products. Please feel free to discuss with us about your customized requirements, we can surely meet your needs.
5. What products and materials do you supply?
Zhongheng Steel mainly supplies all catalogs and all grades of steel and stainless steel products. Coils, strips, sheet, pipes, bars, beams, flanges and other customized products. Tin coating, Ti coating, galvanization and other surface treatments are also available.
Other than steel products,Zhongheng Steel also has high production capacity and holds large ready stock of all kinds of copper and aluminum products.
Please feel free to consult us about any related products above, we can surely meet your requirements.
6. Why should I choose you?
Zhongheng Steel Industry company has deeply engaged in metal material market for over 15 years. We established perfect reputation world-widely. Craftsmanship spirit is the fundamental of Zhongheng Steel since we are established. Zhongheng Steel keeps our products as highest quality and lowest price to maintain our self competitive. Proving our clients with best trading experience is the goal we always insist of.
7. How can I make sure you are a reliable supplier?
Zhongheng Steel is willing to provide our copies of company registration certificate, Alibaba registration and Chinese exporting registration for you to view. These certificates are under Chinese Trading Law effect. They can help you officially check our company's capability and status.
On the products' side, certificates as Mill Test Certificate(MTC), Third Party Material Quality Conformity Certificate and other required certificates are available before the order. Samples are also available from us for you to test in your own testing facility. Zhongheng Steel also supports third-party inspection before shipping. Zhongheng Steel also welcomes a company tour for you to check our factory status.
