Free Member - BIG CO.,LTD
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BIG Co.,Ltd, located in Beijing, China. Which is 180km away from Xingang port. Our corporation is specialized in handling the business of Alloy steel products. We have more than 10-years experiences cooperated with many clients both from domestic and overseas, and has obtained consistently high praise from our customers since it was set up. Our company is one of the leading supplier specializing in Alloy steel pipes and alloy round bars in China, focus on CrMo series\ CrMnMo series steel, such as AISI 4130 and 4140 is our hot-selling products. We have more advantages in heavy thickness seamless pipes, the thickness can up to 100mm . We can provide customers different specification standards e. g. ASTM A106, ASTM A335, ASTM A519, A213, A333, EN10216, EN17175 and etc. And we can order produce the pipes as customer's requirements even the quantity is a small one. By establishing a solid strategic cooperation relationship with our partners, we are integrating resources and optimizing efficiency. Our pipe business is dominating the global market day by day. Other than steel pipes and steel bars, we are also capable of supplying a wide variety of pipeline accessories, machining steel parts according to drawings, etc. All that consists of our one-stop sales. The integrated sales & service ensures customers with various demands an easier access for purchasing management. In the past years we have exported premium quality steel pipes, steel bars and machining parts to all over the world, such as Europe (France, Greek,Lithuania), South and North America (Chile, Argentina, Brazil, American, Middle East countries Iran, Iraq, UAE, Syria, Jordan, Saudi Arabia), Africa (Mauritius, Kenya, South Africa, Egypt), and Southeast Asia, etc. The products are quite welcomed in these regions and our company enjoys a sound reputation globally. The motto of the company is making high quality products to win the customers both from home and abroad and establishing honesty and credit ability to welcome friends all over the world. We sincerely welcome you to contact us for further information. |
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Company Products
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ASTM A335 Alloy Pipes
Stainless Steel Pipes
Alloy Pipes
Specification:
ASTM A335 is a ASTM standard specifies Seamless Ferritic Alloy Steel Pipe for High-Temperature Service. ASTM A335 pipe ordered to this specification shall be suitable for bending and similar forming operations, and for fusion wel
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ASTM A519 Alloy Pipes
Stainless Steel Pipes
ASTM/ASME Standard Alloy Pipes
Specification:
ASTM A519- specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished. The steel used in the mechanical tubing may be cast in ingots or may be stra
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ASTM A213 Alloy Pipes
Stainless Steel Pipes
ASTM/ASME Standard Alloy Pipes
Specification:
ASTM A213M-09 Standard Specication for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, Heat-Exchanger Tubes.
This standard is issued under the fixed designation A 213/A 213M; the number immedi
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EN10216 Alloy Pipes
Stainless Steel Pipes
European Standard Alloy Pipes
Seamless steel tubes for pressure purposes
· EN 10216-1 Non-alloy steel tubes with specified room temperature properties
· EN 10216-2 Non alloy and alloy steel tubes with specified elevated temperature properties
· EN 10216-3
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GB Standard Alloy Pipes
Stainless Steel Pipes
Alloy Pipes
GB/T8162 GB/T8163 GB3087 GB6479 GB9948 GB5310 GB/T17396 20G, 20MnG, 25MnG, 15MoG, 12Cr2MoG, 15CrMoG, 12Cr1MoVG, 12Cr2MoWVTiB, 10Cr9Mo1VNb
Size (mm) we can supply:
Hot-rolled: O.D.: 51-508; W.T.:7∼60; L: max 16000
Cold-drawn: O.D.: 10-50; W.T.:2
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ASTM AISI Standard Alloy Round Bar
Stainless Steel Bars
Round Bar
Round Bar
Specifications
· Grade: Alloy steel
· Standard: AISI, ASTM, BS, DIN, GB, JIS
· OD：10-500mm
· Thickness: Max:800mm
· Width: 205mm~2300mm
· Length: 1000mm~6000mm
· Place of Origin: China (Mainland)
· Model Number: 1.7220 / SCM430 / 30CrM
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GB Standard Alloy Round Bar
Stainless Steel Bars
Round Bar
Specifications
· Grade: Alloy steel
· Standard: AISI, ASTM, BS, DIN, GB, JIS
· OD：10-500mm
· Thickness: Max:800mm
· Width: 205mm~2300mm
· Length: 1000mm~6000mm
· Place of Origin: China (Mainland)
· Model Number: 1.7220 / SCM430 / 30CrMo4 / 4130 ;
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Alloy Round Bars
Stainless Steel Bars
Specifications
· Grade: Alloy steel
· Standard: AISI, ASTM, BS, DIN, GB, JIS
· OD：10-500mm
· Thickness: Max:800mm
· Width: 205mm~2300mm
· Length: 1000mm~6000mm
· Place of Origin: China (Mainland)
· Model Number: 1.7220 / SCM430 / 30CrMo4 / 4130 ; 4140/42Cr
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ASI 4130 Round BarI
Stainless Steel Bars
ASTM/AISI Standard Alloy Round Bar
AISI 4130 is a low alloy steel containing molybdenum and chromium as strengthening agents. The carbon content is nominally 0.30% and with this relatively low carbon content the alloy is excellent from the fusion weldabili
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Deephole Drilling Boring Honing
Metallurgy Machinery
Mechanical Service
In order to reach the customer's requirements, we have expanded our Machining Services. We now specialize in other services such as Deep Hole Drilling, Precision Grinding, and Welding. Each time we came upon a part which required an outs
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