Ningbo Ningtuo Machinery Co., Ltd. was established in 2019 and is located at No. 3, Jinqiao 3rd Road, Taoyuan Street, Ninghai County, Ningbo City, Zhejiang Province. It is a comprehensive industrial and trade enterprise focusing on both domestic and foreign trade as well as processing. The company's products involve forging, die casting, casting, machining, plastic products, plastic molds, etc.
Our Services
The company provides OEM services based on drawings and samples provided by customers. We can complete the entire process, including 3D modeling design, mold design and production, product forging, forging heat treatment, and machining.
Certification
We have passed the ISO9001:2000 quality system certification, and our products have obtained SGS, ROHS, TUV, and REACH certifications.
Sales Market
Our products are exported to North America, Europe, the Middle East, Southeast Asia, and other regions. They are well received by many customers. Meeting our customers' needs is our eternal goal.
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Main Materials
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Stainless Steel |
SS201,SS301,SS303, SS304, SS316, SS416 etc. |
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Steel |
Mild steel, Carbon steel, 4140, 4340, Q235, Q345B, 20#, 45# etc. |
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Brass |
HPb63, HPb62, HPb61, HPb59, H59, H68, H80, H90 etc. |
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Copper |
C11000,C12000,C12000, C36000 etc. |
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Aluminum |
AL6061, Al6063, AL6082, AL7075, AL5052, A380 etc. |
Surface Treatment
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Stainless Steel |
Polishing, Passivating, Sandblasting, Laser engraving |
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Steel |
Zinc plating, Oxide black, Nickel plating, Chrome plating, Carburized, Powder Coated |
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Aluminum parts |
Clear Anodized, Color Anodized, Sandblast Anodized, Chemical Film,Brushing,Polishing |
Surface finish
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Aluminum parts |
Stainless Steel parts |
Steel |
Brass |
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Clear Anodized |
Polishing |
Zinc plating |
Polishing |
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Color Anodized |
Passivating |
Oxide black |
Nickel plating |
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Sandblast Anodized |
Sandblasting |
Nickel plating |
Sandblasting |
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Chemical Film |
Laser engraving |
Chrome plating |
Laser engraving |
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Brushing |
Carburized |
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Polishing |
Hot treatment |
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Chroming |
Powder Coated |
Specification
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Products name |
Copper/Brass/Bronze alloy Bar |
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Material |
C10100,C10200,C10300,C10400,C10500,C10700,C10800,C10910,C10920,C10930, |
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Thickness |
2mm-200mm or customized |
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Width |
10mm-600mm or customized |
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Length |
200mm-6000mm or customized |
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Surface |
Mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
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Application |
With high conductivity,copper flat bar can be widely used in: |
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standard |
GB/T4423-2007, JISH3250-2006,JISH3300-2006, |
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Package |
Standard export package (bundled by strip,wrapped with plastic bag,wooden case or as customers' requirement.) |
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Manufacturers can use cold forming to work with most alloys of brass and copper. The ability to use cold forging depends upon the chemical composition of the alloy, and the metal’s annealed properties. Both reliable and cost-effective, cold forging may improve a metal part’s hardness and ductility.
The use of cold forging usually involves cost savings. It may increase the toughness of a component, and permit the creation of excellent dimensional accuracy and a high surface quality in a finished part.
Highly productive production runs sometimes use this process, which may include activities such as cold drawing, cold heading, bending and more in order to produce diverse shapes.
Brass and copper alloys display versatile properties. Manufacturers often seek to shape and work these materials in a variety of ways. During the process of warm forging, a manufacturer uses an elevated temperature to forge copper and brass.
The temperature range remains lower than during hot forging, but does rise to a level above room temperature. In general, utilizing warm (as opposed to hot) forging assists tooling life, individual part tolerance ranges, and sometimes, surface finishes.
A process called “hot forging” enables the production of many brass and copper parts. In this process, metals undergo plastic deformation at high temperatures. Manufacturers use this process to forge complex shapes unavailable through the processes of cold or warm forging.
Bar Stock
The following information will help you determine which type of copper round bar to buy from a reputable copper round bar provider; be sure to review it. Learn the differences between the various copper Copper Precision Ground Bar Stock grades.
Pure metal Copper steel bar
There are no more than 0.7% by weight of contaminants in pure Copper. From C10100 to C13000, copper grades are economic purity. Its essential qualities can be altered by adding minor alloying metals to dilute Copper.
Free-machining Copper
These copper alloys are free to process and made more machinable by adding sulfur and telluride. Just 0.5 percent of the final product contains any of these ingredients. For copper steel bar need to have sulfur and telluride to be categorized as free-machining Copper.
Electrolysis Copper
The copper cathode must first be purified electrolytically to make electrolytic rigid pitch copper. One of the most prevalent types of copper bar stock is the 1100 round bar stock.
Oxygen-free Copper
Oxygen-free Premium cathode copper go though induction melting with powdered graphite—meanwhile, hydrogen protective reducing atmospheres in nonoxidizing conditions to produce Copper C10100 and C10200.
Packing and transport
Packing Details:
●Bubble bag and color box per piece used for sales directly, many boxes per carton box, then packed in standard export plywood case/pallet
●Carton box+standard export plywood case/pallet
●Bubble bag per piece, then packed in standard export plywood case directly
●Export plywood case directly
FAQ
As one of the leading copper forging manufacturers and suppliers in China, we warmly welcome you to wholesale copper forging made in China here from our factory. All customized products are with high quality and competitive price.
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