Global Steel Inc is one altogether the leading manufacturer, supplier,exporter and stockist of superior quality ASTM SB 622 Hastelloy C22 seamless pipe & tube and ASTM SB 622 Hastelloy C22 welded pipe & tube. These Hastelloy C22 pipe & tube are available in various sizes and thickness. These hastelloy c22 pipes and tubes are widely utilized in different industries like chemical industry, cement industry, oil and gas industry and lots of a lot of.
An ISO 9001:2008 Certified Company, Steel Pipes & Tubes Industries is India’s most trusted manufacturer, exporter and supplier of stainless steel tubes (ASTM A 312 304/304L, 316/316L), carbon steel pipes (ASTM A A106, A53, API 5L), alloy steel seamless pipes (ASTM A335 P11, P22), mild steel pipes, industrial steel tubes, galvanized steel pipes and black steel pipes.
We can manufacture and supply steel pipes which can be fabricated to customers design and specification in a variety of length and thickness requirements. We can also offer cold drawn seamless steel tubes to meet the custom design and specifications of our customers. We specialise in the manufacture and supply of cold drawn seamless steel tubes, and large diameter stainless steel welded pipes (100% X-Ray Tested). ISO 9001:2008 Certification ensures consistency in our operations and testing procedures.
Steel Pipes and Steel Tubes supplied by Metline Pipes & Tubes are used across wide range of industries including food processing, power generation, oil and gas, petrochemicals, petroleum pipelines, medical equipment, biopharma, pharmaceuticals, electrical engineering, fertilizer industry, dairy processing, boiler manufacturing and nuclear energy among others.
METLINE has been proudly servicing the steel pipe industry for over 40 years, as a major supplier and manufacturer of custom size steel pipes and steel tubes. We are the exclusive suppliers of stainless steel welded pipes, stainless steel seamless tubes, stainless steel tubing, alloy steel seamless pipes, boiler steel tubes, heat exchanger tubes, capillary tubes, coiled tubing, and galvanized steel pipes. We are serving all major cities and countries in their needs for steel pipes and steel tubes.
Our products are supplied to all major Industrial areas and cities in India such as Mumbai, Delhi, Bangalore, Hyderabad, Ahmedabad, Chennai, Kolkata, Surat, Pune, Nagpur, Indore, Thane, Bhopal, Visakhapatnam, Vadodra, Nashik, Faridabad, Rajkot, Aurangabad, Ranchi, Coimbatore, Raipur, Mysore, Bhubaneswar, Salem, Bhilai, Bhiwandi, Bikaner, Mangalore, Kochi (Cochin), Bhavnagar, Tirupur, Ankleshwar, Assam, Siliguri, Jamshedpur, Warangal, Nellore, Agartala and Thoothukudi.
Our high quality steel pipes, good customer service, and in house pipes and tubes processing capabilities have made us one of the emerging suppliers for steel pipes and tubes in Middle East countries including Bahrain, Cyprus, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, Turkey, United Arab Emirates and Yemen.
India’s #1 Supplier of Stainless Steel Pipes/Tubes, Chrome Moly Pipes,Black Pipes, Galvanised Pipes, Carbon Steel Pipes
Stainless Steel Pipes, Carbon Steel Tubes, Alloy Steel Tubes, MS Pipes Production and Stock Range
Outside Diameter: 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
Thickness Range: 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Type: Seamless / ERW / Welded / Fabricated / CDW
Key Steel Pipes & Tubes Products & Grades
- Stainless Steel Seamless Pipes & Tubes – 304, 304/L, 316/L, 904L, 310S, 321H, 347H, 446
- Stainless Steel Welded Pipes & Tubes – 304, 304/L, 316/L, 904L, 310S, 321H, 347H, 446
- Square Stainless Steel Pipes, Round Stainless Steel Tubes,Rectangular Stainless Steel Pipes & Tubes
- Carbon Steel Seamless Pipes as per ASTM A 106 Grade B/API 5L Grade B/ASTM A 53 Grade B
- Carbon Steel Seamless Tubes as per BS 3059, ASTM A 179, ASTM A 192, ASTM A 210 GR.A1
- Alloy Steel Seamless Pipes as per ASTM A335 Grade P1/ P5/ P9 / P11/ P12 / P22 / P91
- LTCS Pipe – Low Temperature Carbon Steel Pipes as per ASTM A 333 Grade 6
- Alloy Steel Seamless Tubes as per ASTM A213 Grade T5/T9/T11/T12/T22/T91
- ERW Black Pipes as per IS:1239/I, IS: 3589 Grade 330 or Grade 410
- Galvanised Pipes as per IS:1239/I
- Square and Rectangular Steel Pipes as per IS: 4923
- ERW Boiler Tubes: BS 3059, ASTM A 214
- Air Pre Heater Tubes to BS: 6323 PART V
- Hydraulic Tubes to DIN 2391 ST. 35, ST. 45 & ST. 52
- Seamless Heat Exchanger Tubes ASTM A 179
- CDW TUBES IS: 3074 or BS 980
- CRCA ERW Tubes to IS 3601 OR IS 3074
- Stainless Steel Electropolished Pipes Manufacturer/Supplier
- Alloy Steel Fittings Manufacturer – ASTM A234 WP5, P11, P22, P91
Baoji City Changsheng Titanium Co., Ltd. is located in Baoji City, which is called “Titanium City”. We are a high-tech enterprise which mainly operates metallic titanium and titanium alloy materials.
Our factory was established in 2001. We are a professional manufacturer for processing and producing metallic titanium, as well as titanium alloy materials. At present, we have a complete production line of metallic titanium and titanium alloy materials.
There are six engineers, twelve advanced artificers, and forty production artificers in our company. Our factory is known as advanced processing technology, strong technical force, excellent quality, prompt delivery, and high credibility.
Our factory is located in Baoji, the largest Non-ferrous base of China’s Non-Ferrous Metals Processing Plant. The factory is located near Xian-Baoji Highway, possessed very convenient transport.
We own the complete production line of bar materials: forging, rolling, grinding, and machining and are able to achieve large-scale production of different thickness, different scales, varieties, and different specifications for a variety of bars, forged products like titanium ring, flange and disc etc. We also possess a production line for titanium tubes, sheets…
Our company is strictly in accordance with ISO9001:2000 quality system certification. High-effect management system will provide you best quality goods and earlier delivery time.
Your Satisfaction, is our Mission.
Founded in 1998, Shanghai Yikai Metal Products Co., Ltd is a high technology enterprise specialized in the invention, development and production of stainless steel products( pipe&tube, sheet, coil, round bar), heat-resistant steel, corrosion resistant alloy with ASTM, AISI, DIN, API, EN, BS standards approved in China. It has been a new flag in special steel industry.
Since its establishment, the company has built up by smelting, steel rolling, forging, casting for the integration of production line, and successively increased job program of cold drawing and grinding. Since 2001, the company has been committed to the production and development of stainless steel 304, 304L, 316, 316L, 317L, 309H, 310S; nickel alloy Hastelloy C-276, C22, C4, B2, Inconel 600, 625, 718, X-750, Monel 400, K-500; super austenitic stainless 904L, 254SMo, 1.4529; duplex steel 2205, 2304, 2507, 2760. The company pays attention to product quality and good faith,and has established cooperation partnership with many domestic and foreign customers. The product has penetrated into each domain, widely used in petroleum chemical industry, flue gas desulfurization equipment, nuclear industry, aviation, metallurgical machinery, such kinds of corrosion resistant and high temperature resistant equipment.
We have made consistent progress to satisfy the growing demands of the market and our customers, and have continuously invested in the further development of our product range, logistics and services.This has seen the original owner-managed company evolve into a modern, innovative service enterprise.
Black painted Carbon Steel Seamless Pipe
Introduction:
ASTM A106 Grade B, ASTM A53 Grade A, Grade B, API 5L Grade B, GB/T 8162, GB/T 8163 Grade 20#
Detailed Information:
Product Name | Black painted Carbon Steel Seamless Pipe |
Thickness | SCH20, SCH 30, STD, SCH40, SCH80 TO SCH160 (3MM to 46MM) |
Outer Diameter | 1/2″ to 24″ |
Surface Treatment | Anti-rust oiled or black painting or hot dipped galvanized and so on |
Production process | Hot rolled |
Material | 20#, 16Mn, A53(A,B), Q345 |
Length | General 5.8m, 6m, 11.8m, 12m and also can do as per the customer’s requirements |
Ends | Plain and beveled end |
Standard and Steel Grade | ASTM A106 Grade B, ASTM A53 Grade A, Grade B, API 5L Grade B, GB/T 8162, GB/T 8163 Grade 20# |
Certificate | ISO 9001: 2008 |
Package: | By bundle, bulk, by waterproof |
Payment term | T/T or L/C |
https://www.hebeibona.com/seamless-steel-pipes/
Seamless pipe are made of sheet or rod-shaped solid steel, formed into solid circles called billets, which are then heated and cast in forms such as puncture rods to form hollow tubes or shells.
Digvijay Metals are one of the leading manufacturers, suppliers and exporters of high quality stainless steel, carbon steel, stainless steel gate roller wheel, duplex steel, super duplex steel, alloy steel, high nickel alloy, inconel, monel, hastelloy, alloy 20, Stainless Steel Architectural Products Manufacturers in India, titanium pipes, tubes, sheets, plates, coils, round bars, rods, flanges, pipe fittings and fasteners in Mumbai, India.
Our Products
Stainless Steel Glass Spigot
Stainless Steel Glass Bracket
Stainless Steel D-Bracket
Stainless Steel Glass Standoff
Stainless Steel Glass Fixing
Stainless Steel Handrail Bracket
Stainless Steel Glass Clamp
Stainless Steel Point Fixing
Stainless Steel Gate Roller Wheel
Stainless Steel Slotted Pipe
Stainless Steel Coated Angle
Stainless Steel Coated Channel
Stainless Steel Coated Profile
Stainless Steel Railing Accessories
Stainless Steel Glass Fittings
Stainless Steel Decorative Profile
Stainless Steel Tile trims
Stainless Steel T Profile
Stainless Steel C Channel
Stainless Steel U Profile
Stainless Steel L Angel
Stainless Steel PVD Coated Profiles
more info visit us http://www.digvijaymentals.com
Zouping kaiteda steel manufacturer is located in Shandong,Established in 1992, we are a steel pipe and steel pipefittings manufacturor ,trading and investing enterprise.
We have 2 of pipe manufacturing and 3 of pipe fittings workshop. plant area is 12400m2 .
Zouping kaiteda steel manufacturer have the license to run Imp& Exp .It is a export production-oriented enterprises.
Listed on the Nasdaq Capital Market, Sutor Technology Group Limited is a high-tech manufacturer of fine finished steel products used by steel fabricators and other applications in China.
Utilizing its fully automated facilities, state-of-the-art technology and a world-class manufacturing concept, SUTOR has grown to six integrated steel sheet and six steel pipe production lines with total production capacity of approximately 4.05million metric tons. SUTOR specializes in manufacturing and developing diversified high-end finished steel products, including hot-dipped galvanized steel, pre-painted galvanized steel, acid-pickled steel, cold-rolled steel , welded steel pipe products, and high-precision auto body sheet products. SUTOR has also established a vertically integrated business model that provides processing, distribution and customized logistic solutions.
Sutor’s diversified lines of products are used in a variety of industries including solar energy, household appliances, medical instruments, IT, building & construction and automobiles. The company benefits directly from the increasing demand for its products due to on-going urbanization and industrial upgrading in China.
Tianjin Xuboyuan Iron & Steel Trading Co., Ltd is one of the China’s top 10 steel enterprise with annual export exceed USD18, 000, 000.
For the last 6 years it has LED the Asia steel industry as a leading steel manufacturer and export company and today ranks as the most trusted China iron and steel maker, importer and exporter with presence for Our productsin 30 countries.
The market of XBY ranges from high cost steel products to that of the lowest in the field of steel products. Then cooperation provides integrated sales and service plans for steel factories and customers, and provide more considerate service for both upstream and down stream factories in the industry bsed on large scale effects.
We have flexible and various trading forms. Its main aimed service target is endcustomers, with distribution in addition. The main aimed mrket of the XBY is the Middle East, and extend to that of globe.
XBY provides steel trade, storage, process, delier and transport service, and form a complete set in all the link, and try to find increment point for customers by optimized logistics, so that customers can enjoy the service at ease.
The market of XBY ranges from high cost steel products to that of the lowest in the field of steel products, and emphasizes on wholesale and service for big customers. And it has strong resource stock capacity. It stock and sales goods in global scale, and has good cooperation with amost all steel mill in China and famous international trading company.
The sales network of XBY covered all around the world. The group possesses more than 20 subsidiary companiesthat provide integrated sales and service for both upstream and down stream fatories in the industry based on large-scale effects.
With more than 15 years’ export experience, Anyang General International Co., Ltd (AGICO) is one of the professional steel tubes and pipes exporters and service providers in China.At AGICO, you will find any grade and any kind of steel tubes and pipes in any size.AGICO Steel is able to integrate the whole steel industry to meet all customers’ requirements including various demands of steel tubes and pipes from China.
Uttam Value Steels Ltd., formerly Lloyds Steel Inds. Ltd., ventures into heavy engineering fabrication and manufactures steel and steel related products such as Hot rolled products, Cold rolled and Galvanised Products. The company has its registered office in Mumbai.
An ISO 9001:2008 Certified Company, Steel Pipes & Tubes Industries is India’s most trusted manufacturer, exporter and supplier of stainless steel tubes (ASTM A 312 304/304L, 316/316L), carbon steel pipes (ASTM A A106, A53, API 5L), alloy steel seamless pipes (ASTM A335 P11, P22), mild steel pipes, industrial steel tubes, galvanized steel pipes and black steel pipes.
We can manufacture and supply steel pipes which can be fabricated to customers design and specification in a variety of length and thickness requirements. We can also offer cold drawn seamless steel tubes to meet the custom design and specifications of our customers. We specialise in the manufacture and supply of cold drawn seamless steel tubes, and large diameter stainless steel welded pipes (100% X-Ray Tested). ISO 9001:2008 Certification ensures consistency in our operations and testing procedures.
Steel Pipes and Steel Tubes supplied by Metline Pipes & Tubes are used across wide range of industries including food processing, power generation, oil and gas, petrochemicals, petroleum pipelines, medical equipment, biopharma, pharmaceuticals, electrical engineering, fertilizer industry, dairy processing, boiler manufacturing and nuclear energy among others.
METLINE has been proudly servicing the steel pipe industry for over 40 years, as a major supplier and manufacturer of custom size steel pipes and steel tubes. We are the exclusive suppliers of stainless steel welded pipes, stainless steel seamless tubes, stainless steel tubing, alloy steel seamless pipes, boiler steel tubes, heat exchanger tubes, capillary tubes, coiled tubing, and galvanized steel pipes. We are serving all major cities and countries in their needs for steel pipes and steel tubes.
Our products are supplied to all major Industrial areas and cities in India such as Mumbai, Delhi, Bangalore, Hyderabad, Ahmedabad, Chennai, Kolkata, Surat, Pune, Nagpur, Indore, Thane, Bhopal, Visakhapatnam, Vadodra, Nashik, Faridabad, Rajkot, Aurangabad, Ranchi, Coimbatore, Raipur, Mysore, Bhubaneswar, Salem, Bhilai, Bhiwandi, Bikaner, Mangalore, Kochi (Cochin), Bhavnagar, Tirupur, Ankleshwar, Assam, Siliguri, Jamshedpur, Warangal, Nellore, Agartala and Thoothukudi.
Our high quality steel pipes, good customer service, and in house pipes and tubes processing capabilities have made us one of the emerging suppliers for steel pipes and tubes in Middle East countries including Bahrain, Cyprus, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, Turkey, United Arab Emirates and Yemen.
India’s #1 Supplier of Stainless Steel Pipes/Tubes, Chrome Moly Pipes, Black Pipes, Galvanised Pipes, Carbon Steel Pipes
Stainless Steel Pipes, Carbon Steel Tubes, Alloy Steel Tubes, MS Pipes Production and Stock Range
Outside Diameter: 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
Thickness Range: 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Type: Seamless / ERW / Welded / Fabricated / CDW
Key Steel Pipes & Tubes Products & Grades
1. Stainless Steel Seamless Pipes & Tubes – 304, 304/L, 316/L, 904L, 310S, 321H, 347H, 446
2. Stainless Steel Welded Pipes & Tubes – 304, 304/L, 316/L, 904L, 310S, 321H, 347H, 446
3. Square Stainless Steel Pipes, Round Stainless Steel Tubes, Rectangular Stainless Steel Pipes & Tubes
4. Carbon Steel Seamless Pipes as per ASTM A 106 Grade B/API 5L Grade B/ASTM A 53 Grade B
5. Carbon Steel Seamless Tubes as per BS 3059, ASTM A 179, ASTM A 192, ASTM A 210 GR.A1
6. Alloy Steel Seamless Pipes as per ASTM A335 Grade P1/ P5/ P9 / P11/ P12 / P22 / P91
7. LTCS Pipe – Low Temperature Carbon Steel Pipes as per ASTM A 333 Grade 6
8. Alloy Steel Seamless Tubes as per ASTM A213 Grade T5/T9/T11/T12/T22/T91
9. ERW Black Pipes as per IS:1239/I, IS: 3589 Grade 330 or Grade 410
10. Galvanised Pipes as per IS:1239/I
11. Square and Rectangular Steel Pipes as per IS: 4923
12. ERW Boiler Tubes: BS 3059, ASTM A 214
13. Air Pre Heater Tubes to BS: 6323 PART V
14. Hydraulic Tubes to DIN 2391 ST. 35, ST. 45 & ST. 52
15. Seamless Heat Exchanger Tubes ASTM A 179
16. CDW TUBES IS: 3074 or BS 980
17. CRCA ERW Tubes to IS 3601 OR IS 3074
18. Stainless Steel Electro polished Pipes Manufacturer/Supplier
19. Alloy Steel Fittings Manufacturer – ASTM A234 WP5, P11, P22, P91
Arvind Pipe & Fittings Industries Pvt. Ltd., Came into existence in the year 1982 well known as Arvind Metal Syndicate. The genesis of ARVIND’s birth & growth is “ACCEPTING CHALLENGES.”
The planned Growth has transformed into two separate manufacturing units one Welded, Seamless Tubes & Pipes and other Pipe Fittings & Flanges. We will serve you for all your piping requirements under one roof such as Pipe, Tubes, Pipe Fittings, Flanges product.
Yieh United Steel Corp. is a Taiwan-based company principally engaged in the manufacture and distribution of stainless steel products. The Companys products portfolio consists of hot-rolled stainless steel plates, hot-rolled stainless steel sheet in coils, cold-rolled stainless steel plates, stainless steel billets, stainless flat steel billets, as well as wire rods and others. Its products are applied in deep processing of screws, pipes, springs, panels, wires and rods, cutleries, mechanical components, elevators, heat exchangers, medical equipment and construction materials, among others. The Company distributes its products primarily in Taiwan, Mainland China, Asia, Europe and the Americas. On July 10, 2014, it announced that it sold whole shares of a company.
Jiangsu Darun Machinery Manufacturing Co.,Ltd. is an enterprise specializing in production and sales of seamless steel tube.
It has a complete and effective system of quality control and assurance. We have passed the Lloyd’s ISO9001: 2008 quality management system certification,the national special equipment manufacturing license certification, the EU PED 97/23/EC certification, the American Petroleum Institute certification; the Company can produce seamless steel tube with all sizes,external diameter between……
Steel Tubes India is an ISO 9001, 14001, Ohsas 18001 & PED Certified stocking distributor and specialty manufacturer of Stainless Steel, Inconel, Monel & Hastelloy Pipes, Tubes, Pipe Fittings, Flanges, Inconel Sheet, Inconel Plate, Coil & Round Bar, We are approved vendors of more than 100 multinational companies including Government Sector & Public Sector. Steel Tubes India is awarded by Indian Government for Export Excellence for 6 consecutive years.
India, United States, Malaysia, UAE, China, United Kingdom, Indonesia, Saudi Arabia, Singapore, Canada, Iran, Thailand, South Korea, Turkey, Philippines, Egypt, Germany, Italy, Japan, Russia, Vietnam, Australia, Qatar, South Africa, Portugal, Morocco, Costa Rica, Kazakhstan, Netherlands, Mexico, Brazil, France, Spain, Taiwan, Nigeria, Bangladesh, Kuwait, Iraq, Ukraine, Poland, Jordan, Romania, Oman, Hong Kong, Venezuela, Colombia, Norway, Chile, Trinidad & Tobago, Greece, Czechia, Belgium, Sri Lanka, Cyprus, Angola, Myanmar (Burma), United Kingdom, Canada, Malaysia, United Arab Emirates, South Korea, Thailand, Iran, Netherlands, Spain, Turkey, Australia, Mexico, Pakistan, Vietnam, Brazil, Philippines, France, China, Taiwan, Poland, South Africa, Russia, Nigeria, Kuwait, Qatar, Czechia, Norway, Romania, Egypt, Oman, Sweden, Belgium, Hong Kong, Israel, Colombia, Switzerland, Denmark, Finland, Argentina, Venezuela, Peru, Ukraine, Chile, Bangladesh, Portugal, Ireland, Austria, Algeria, Greece, Iraq, New Zealand, Slovakia, Hungary, Kazakhstan, Slovenia, Lithuania, Serbia, Sri Lanka, Bahrain, Bulgaria, Morocco, Tunisia, Croatia, Jordan, Ecuador, Trinidad & Tobago, Estonia, Azerbaijan, Ghana, Lebanon, Cyprus, Dominican Republic, Latvia, Libya, Costa Rica, Cambodia, Macedonia (FYROM), Belarus, Jamaica, Palestine, Turkmenistan.
Hunan Standard Steel Pipe Co.,Ltd as the professional manufacturer of steel pipe and pipe fittings, The company is located in an industrial zone in Xinsha town,Changsha city ,Standard Steel will ,taking the scientific developments view as guideline in its overall reformation and develepment, stick to the development of quality -profitability road under the guidance of science and technology ,and persist in extraversive development with implementation of strategy of taking central china as standing ground and developing southwest,The group will makes the great efforts to reach a production scale of more than 10 million tons with an annual sales income of over 30 billion RMB into the rank of 500 top steel enterprises in the word.
Shandong Witsteel International Trading Co., Ltd
Located in beautiful seaside city Qingdao, mainly import and export iron ore, carbon steel, stainless steel, alloy steel products such as sheet, coil, plate, round bar, angle steel, channel steel, seamless and welded pipe, fitting and so on.
Witsteel was the subsidiary corporation of Shandong Tianbao Group. Which was established in year 1997. Now become the No. 1 steel trading company in Shandong Province. The top 500 enterprise of China. And we already build very good relationship with many customers from 70 countrys around the word.
Witsteel has excellent international saling team. Have 10 years experience in steel industry. Our siscientific program for customers to save 5%.
We will continue to use our professional and high efficient service to offer our customer more economical soluotion on business.
Huaxi steel Group with three plants, 13 production workshop. 6-high mill group 2, 4 rack of a four-high rolling mill group, 18 four-high mill group, The roller mill 88 Desk, Slitting a unit 4 * 1600, electric furnace 18 retreat, Steam Car furnace annealing furnace 10 sets equipped with chemical composition and mechanical analysis Test equipment, pickling line 28. From the tropics, pickling, cold-rolled, the sub-shear, annealing, packaging one-stop production, and formed a band in production and processing The steel production capacity of 300,000 tons. The main production thickness 0.10 mm-4.00mm width of 12 mm-350mm. Steel: Q195, Q235, 07AL, SPHC, SPCC series such as cold rolled steel strip, hot rolled steel strip and Pipe. e.g. And in soft state, semi-soft, Chilled state delivery. Products as Southeast Asia, Europe and more than 10 countries and regions in the country more than 20 domestic provinces, cities and autonomous regions. Complete plant products, product variety, a wide range of uses. Mainly used bicycles, motorcycles, fitness equipment, furniture and construction industries, telecommunications, stamping parts materials, silicon steel plates, water supply and gas transmission projects. Plant products, “Sincerity-centered, winning through quality,” and does not seek the best, but it must be better. Adhere to the “small profits but quick turnover, and mutual benefit” principle, with new and old customers to develop long-term friendly and cooperative relations, work together.
Steel common knowledge quiz:
1. The higher the carbon content of cold rolled steel strip hardness higher plastic worse?
Answer: carbon content of steel can be divided into three types:-eutectoid steel (0.0218% <Wc <0.77%), eutectoid steel (Wc = 0.77%), a eutectoid steel (0.77% <Wc <2.11%).
Eutectoid steel in Asia from the L phase cooled to room temperature organizational transformation process are: first precipitation ferrite, when the carbon content to eutectic composition when it left the Austrian
Body into pearlite. So at room temperature organization is F + P.
Eutectoid the austenite steel cooling to 727 degrees, eutectoid transformation occurred Generation P. So P is at room temperature organizations.
The eutectoid of steel from L to 727 degrees, will first crystallization into Albright, then precipitated cementite. 727 degrees occurred after eutectoid transformation. Therefore, the P + at room temperature organizations
Cementite.
Ferrite hardness <pearlite pearlite> cementite
Therefore, the higher the carbon content of steel hardness higher plastic worse.
2. Why four categories of steel there?
Four categories of steel is based on the distinction between what criteria? Who is the distinction? In a “verification”, but no one right answer, no one Authoritative departments to a set-lun. So, what is meant by “four” rebar? Some people made such a statement:
A screw steel: the exemption in line with the national standard products, cold rolled steel strip,e.g.mainly by large state-owned iron and steel enterprises produced for the production of major or focus Capital works.
The second category steel: in line with the state standards, but not the exemption products, mainly by the production of some medium-sized steel mills, for general construction of Head.
Three types of steel: It is not in accordance with national standards of production, but “security test” tests fail to return, and tolerance serious Super Size Subscript. Such steel is generally more production of small and medium private enterprises, rural housing construction on the wider application.
Four categories of steel: mainly some rural Office, the County Office by small steel production, some enterprises have not even production permits, generally use five tons of small Electric furnace smelting, IF furnace production than the “manner of Steel” slightly better, the product is often counterfeit, the three kinds of products is l