Basic Info.
Model NO.
301, 302, 303, 304, 304L, 304h, 310S, 316, etc
After-sales Service
70 Years
Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Steel Grade
301, 410, 316L, 321, 410L, 314, 430, 304
Wall Thickness
1.65mm-30.75mm
Outer Diameter
as Requested
Surface Finish
2b/Ba/8K/Mirror/No.1, etc
Standard
AISI, ASTM, GB, DIN
Technology
Cold Rolled, Hot Rolled
Package
Standard Export Seaworthy Package, or as Required.
Delivery Time
8-14 Days, Within 5-30 Working Days
Transport Package
Standard Export Seaworthy Package, or as Required
Product Description
Product Description
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.
201, 202, etc.: Substitute manganese for nickel, which has poor corrosion resistance and is widely used as a cheap substitute for 300 series in China
300 Series: Chromium-Nickel Austenitic Stainless Steels
301: Good ductility, used for molded products. It can also be hardened by mechanical processing. Good weldability. Wear resistance and fatigue strength are better than 304 stainless steel.
302: The corrosion resistance is the same as that of 304, and the strength is better due to the relatively high carbon content.
303: It is easier to cut than 304 by adding a small amount of sulfur and phosphorus.
304: Universal model; i.e. 18/8 stainless steel. Products such as: corrosion-resistant containers, tableware, furniture, railings, medical equipment. The standard composition is 18 % chromium plus 8 % nickel. It is a stainless steel that is non-magnetic and cannot be changed by heat treatment. The GB grade is 06Cr19Ni10.
304 L: Same characteristics as 304, but with low carbon, it is more corrosion-resistant and easy to be heat-treated, but has poor mechanical properties. It is suitable for welding and products that are not easy to be heat-treated.
304 N: The same characteristics as 304, it is a nitrogen-containing stainless steel, nitrogen is added to improve the strength of the steel.
309: Compared with 304, it has better temperature resistance, and the temperature resistance is as high as 980ºC.
309 S: It has a lot of chromium and nickel, so it has good heat resistance and oxidation resistance. Products such as heat exchangers, boiler components, and jet engines.
310: Excellent high temperature oxidation resistance, the maximum operating temperature is 1200 ºC.
316: After 304, the second most widely used steel grade, mainly used in the food industry, watch accessories, pharmaceutical industry and surgical equipment, adding molybdenum to obtain a special structure that is resistant to corrosion. Because of its better resistance to chloride corrosion than 304, it is also used as "marine steel". SS316 is usually used in nuclear fuel recovery units. Grade 18/10 stainless steels generally also meet this application level.
316 L: Low carbon, so it is more resistant to corrosion and easy to heat treatment. Products such as chemical processing equipment, nuclear power generators, and refrigerant storage tanks.
321: Similar to 304, except that the risk of corrosion of material welds is reduced due to the addition of titanium.
347: Add stabilizing element niobium, suitable for welding aircraft parts and chemical equipment.
400 series: ferritic and martensitic stainless steel, manganese-free, to some extent replace 304 stainless steel
408: Good heat resistance, weak corrosion resistance, 11% Cr, 8% Ni.
409: The cheapest model (UK and US), usually used as a car exhaust pipe, is a ferritic stainless steel (chromium steel).
410: Martensitic (high-strength chromium steel), with good wear resistance and poor corrosion resistance.
416: The addition of sulfur improves the processing properties of the material.
420: "Cutting-grade" martensitic steel, the earliest stainless steel similar to Brinell's high-chromium steel. Also used in surgical knives, can do very bright.
430: Ferritic stainless steel, decorative, eg for car accessories. Good formability, but poor temperature and corrosion resistance.
440: High-strength cutting tool steel with slightly higher carbon content. After proper heat treatment, higher yield strength can be obtained, and the hardness can reach 58HRC, which is one of the hardest stainless steels. The most common application example is "razor blades". There are three commonly used models: 440A, 440B, 440C, and 440F (easy to process).
500 Series: Heat-resistant chromium alloy steel.
600 Series: Martensitic precipitation hardening stainless steel.
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).BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D
Original surface: NO.1 The surface subjected to heat treatment and pickling treatment after hot rolling. Generally used for cold-rolled materials, industrial tanks, chemical industry equipment, etc., the thickness is thicker from 2.0MM-8.0MM.
Dull surface: NO.2D cold-rolled, heat-treated and pickled, its material is soft and its surface is silver-white luster, which is used for deep drawing processing, such as automotive components, water pipes, etc.
Matte surface: NO.2B cold-rolled, heat-treated, pickled, and then finish-rolled to make the surface moderately bright. Due to the smooth surface, it is easy to regrind, making the surface brighter and widely used, such as tableware, building materials, etc. With surface treatments that improve mechanical properties, it is suitable for almost all applications.
Coarse sand: NO.3 Products ground with No. 100-120 grinding belts. Has better gloss, with discontinuous coarse lines. It is used for building interior and exterior decoration materials, electrical products and kitchen equipment, etc.
Fine sand: NO.4 The product is ground with a grinding belt with a particle size of 150-180. Has better gloss, with discontinuous coarse lines, and the stripes are thinner than NO.3. For baths, decorative materials inside and outside buildings, electrical products, kitchen equipment and food equipment, etc.
#320 Product ground with No. 320 belt. It has better gloss, with discontinuous rough lines, and the stripes are thinner than NO.4. It is used for baths, interior and exterior decoration materials of buildings, electrical products, kitchen equipment and food equipment, etc.
Hairline surface HAIRLINE: HLNO.4 is a product with a grinding pattern (subdivided 150-320) by continuous grinding with a polishing abrasive belt of appropriate particle size. Mainly used for architectural decoration, elevators, doors and panels of buildings, etc.
Bright surface: BA is cold rolled, bright annealed, and flattened. Excellent surface gloss and high reflectivity. like a mirror surface. Used in home appliances, mirrors, kitchen equipment, decorative materials, etc.200 Series: Chromium-Manganese-Nickel
Product Parameters
Name | 201 304 316 welded decorative stainless steel pipe tube |
Standard | ASTM A554,ASTM A312 |
Material Grade | 201,202,304,316,316L,430 |
Main Material | a) 201 (Ni0.8%-1%) b) 202 (Ni: 3.0%-4.0%) c) 304 (Ni: 8% Cr: 18%) d) 316 (Ni: 10% Cr: 18%) |
Size Range | 139mm-1600mm ETC. |
Thickness | 0.5-30mm |
Length | 6m or as customers' request |
Tolerance | a) Outer Diameter: +/- 0.2mm |
b) Thickness: +/- 0.02mm |
c) Length: +/- 5mm |
Surface | 180G, 320G Satin/Hairline 400G, 600G Mirror finish |
Application | handrail,railing, staircase, weldmesh screen,door,window, balcony,fence,bench,furniture,etc |
Test | Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT |
Chemical Composition of Material | Material Composition | 201 | 202 | 304 | 316L | 430 |
C | ≤0.15 | ≤0.15 | ≤0.08 | ≤0.035 | ≤0.12 |
Si | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 |
Mn | 5.5-7.5 | 7.5-10 | ≤2.00 | ≤2.00 | ≤1.00 |
P | ≤0.06 | ≤0.06 | ≤0.045 | ≤0.045 | ≤0.040 |
S | ≤0.03 | ≤0.03 | ≤0.030 | ≤0.030 | ≤0.030 |
Cr | 13-15 | 14-17 | 18-20 | 16-18 | 16-18 |
Ni | 0.7-1.1 | 3.5-4.5 | 8-10.5 | 10-14 | |
Mo | | | | 2.0-3.0 | |
Mechanical Property | Material Item | 201 | 202 | 304 | 316 |
Tensile Strength | ≥535 | ≥520 | ≥520 | ≥520 |
Yield Strength | ≥245 | ≥205 | ≥205 | ≥205 |
Extension | ≥30% | ≥30% | ≥35% | ≥35% |
Hardness (HV) | <105 | <100 | <90 | <90 |
NO | GB | RUSSIA | AISI,A STM | JIS | BS | DIN | ISO |
1 | 1Cr18Ni9 | 12KH18H9 | 302,S30200 | SUS302 | 302S25 | X12CrNi88 | 12 |
2 | 0Cr18Ni9 | 08KH18H10 | 304, S30400,TP304 | SUS304 | 304S15 | X5CrNi89 | 11 |
3 | 00Cr19Ni10 | Z2CN18.09 | 304L S30403,TP304L | SUS304L | 304S12 | X2CrNi189 | 10 |
4 | 1Cr18Ni9Ti | | | | | X10CrNiTi189 | |
7 | 0-1Cr18Ni12Mo2 Ti | Z6CNDT17.12 | | | 320S17 | X10CrNiMoTi1810 | |
8 | 00Cr17Ni14Mo2 | 03KH17H14M2 | 316Ls S31603,TP316L | SUS316L | 316S12 | X2Cr | 19,19 |
9 | 0Cr25Ni20 | | 310S,S31008s TP310S | SUS310S | | | |
15 | 0Cr23Ni13 | | 309S, S30908 | SUS309S | | | |
16 | 0Cr17Ni12Mo2N | | 316Ns S31651 | SUS316N | | | |
17 | 00Cr17Ni13Mo2N | Z2CND7.12N | | SUS316LN | | X2CrNiMoN1812 | |
18 | 0Cr18Ni12Mo2Cu | | | SUS316JI | | | |
19 | 00Cr18Ni14Mo2Cu2 | | | SUS316JIL | | | |
20 | 0CM9NM9N | ZCNS18.09A2 | 304 | SUS304N | | | |
Certifications
The quality of our products has been certified by ISO9001,SGS, JIS, etc., and each product has a product inspection report to support customer inspection. We have a strict quality control system, which can be customized according to your size. The price is low and the quality is high. Send us an inquiry now to get more discounts.
Company Profile
Shandong Zhongheng Iron and Steel Group Co. Ltd, established in 2000.The company's main business: various types of angle steel, channel steel, I-beam, H-beam, steel plate, square tube and other profiles, which can meet the needs of customers in different industries for special specifications of various steels. We can provide products such as plates, pipes, profiles, building materials, special steel, stainless steel and non-ferrous metals. With many years of experience in the steel industry, the company has a strong ability to control the market. According to the market demand, the company adjusts the inventory in a timely manner. The annual inventory is more than 10,000 tons, which can guarantee to meet the needs of market customers. The sales network has spread all over the world. We have exported more than 100countries like USA, Mexico, Canada, Spain, Russia, Singapore, Thailand, India etc
Sufficient inventory, now orders can be shipped directly, 7*24 hours online service, professional sales and after-sales service team, to solve various problems for you. We have a strict quality control system, which can be customized according to your size. The price is low and the quality is high. Send us an inquiry now to get more discounts.
The factory area of Zhongheng Iron and Steel Group covers an area of about 70,000 square meters, and has processing equipment such as large shearing machine, circular shearing machine, straightening machine, annealing furnace, punching and shearing production line. The annual inventory is more than 10,000 tons, which can guarantee to meet the needs of market customers. The sales network has spread all over the world. We have exported more than 100countries like USA, Mexico, Canada, Spain, Russia, Singapore, Thailand, India etcOur Advantages
What we offer:
1) Good quality control
2) Highly competitive prices
3) state-of-art technology products
4) Smooth communication
5) Effective OEM&ODM servic
Packaging & Shipping
Standard Export Seaworthy Package,or as Required.
FAQ
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.
Address:
2010, J1, Wanda, Gaoxin District, Jinan, Shandong, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Construction & Decoration, Industrial Equipment & Components, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Tools & Hardware
Management System Certification:
ISO 9001, ISO 9000, HSE
Company Introduction:
Shandong Zhongheng Steel Group Co., Ltd. is a large-scale steel enterprise. The company is located in Jinan City, the capital of Shandong Province with convenient transportation.
The company′s main business: Various types of steel coil, steel plate, color steel coil, angle steel, channel steel, I-beam, H-beam, cold-rolled steel plate, square tube, seamless steel tube, stainless steel tube, steel bar, galvanized sheet, galvanized steel Coils and various profiles can meet the needs of customers in different industries for special specifications of various steels, and provide comprehensive solutions for non-ferrous metal products.
With many years of experience in the steel industry, the company has a strong ability to control the market. According to the market demand, the company can adjust the inventory in a timely manner. The annual inventory is more than 10, 000 tons, which can guarantee to meet the market demand. The sales network has spread all over the country and abroad, exporting to South America, Africa, Europe, the Middle East, Southeast Asia and more than 90 countries. Widely praised in the international market, and the export volume has always maintained a leading position in China.
The company has a perfect quality management system, and has the market advantages of full inventory and fast delivery.
Zhongheng Company adheres to the mission of "creating excellent quality and achieving a better life", and strives to become a beautiful enterprise that is respected by society, trusted by customers and proud of employees.