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UNS C90700 Tin Bronze Chemical Composition, Grade, Chart and Document

C90700 UNS is a tin bronze alloy famed for its unusually high machinability and corrosion resistance. Copper was the main component of alloy, with tin being the additional metal of the mixture. Some trace amounts of other elements are also added to further improve its properties. This alloy is composed of 88% of copper, 10% of tin, and about 2% of zinc and hence this alloy is resistant to wear, has got a high strength and an excellent castability which makes it to be used for applications like bearings, bushings, gears, and fittings. The chemical composition services for near perfect thermal and electrical conductivity as is the case with corrosion, tarnishing and dezincification. Manufacturers follows the standardized tables, charts and documentations to provide the consistency and quality of production process through the abidance of the standard requirements of the tin bronze grade material.

UNS C90700 Tin Bronze Chemical Composition And Grade Table

UNS C90700, a variety of copper alloy often called Tin Bronze, is recognized for its outstanding anticorrosion capacity and processing features. This chemical composition usually has copper (Cu) as the basis with tin (Sn) being the major alloying element present. Besides, these compounds can also include amounts of elements such as zinc (Zn), lead (Pb), and phosphorus (P) in some minor form. Along with them, these compounds produce properties that are unique. Tin Bronze formulates to different qualities primarily through its tailored compositions, thus proving its availability in various applications. Its formulation complies with the industry standards, which sustains its performance and durability in the involving engineering or manufacturing processes.

UNS C90700 Tin Bronze Composition Table
Elements Cu Sn
Min (%) - -
Max (%) 89 11

The Advantages and Disadvantages of UNS C90700 Copper Material Properties, C90700 Properties

    Advantages:

  • Corrosion Resistance: UNS C90700 also possesses satisfactory corrosion resistance, as common with other tin bronzes, particularly in marine environment as well as in regions with moisture and air exposure.

  • High Strength: This alloy usually has high tensile and hardness values and is used in applications that demand high mechanical strength.

  • Good Machinability: C90700 is a versatile and highly workable copper that can be easily cut, bent, and shaped into different applications and products without affecting the knife edges of the cutting and forming tools.

  • Excellent Wear Resistance: Tin added in this alloy also improves the wear resistance of the material so it can be used in areas where there are moving or rotating parts like bushing, bearing and gearing.

  • Good Thermal Conductivity: As is the case with any copper alloys, UNS C90700 has a fairly high thermal conductivity making it suitable for uses such as heat transfer like in heat exchangers and cooling systems.

    Disadvantages:

  • Cost: Like with other copper alloys including UNS C90700, the cost may be relatively high compared to other materials, making it more costly to work with for projects or products.

  • Dezincification Susceptibility: Though tin bronzes have fair corrosion resistance they are not fully immune to dezincification in environments like acidic and saline solutions.

  • Limited Weldability: C90700 copper is relatively easy to weld but precautions may be needed to avoid problems such as hot cracking and porosity.

  • Material Density: Copper alloys a re generally heavier in weight than most other materials, which may be an issue in certain applications.

  • Availability of Stock Shapes: Compared to more common materials, it may be even difficult to find stock shapes or forms of the UNS C90700 copper based on the specifications required.

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Frequently Asked Questions

FAQs
What are some of the chemical contents of UNS C90700 tin bronze?

UNS C90700 tin bronze is a copper-based alloy that is generally composed of copper (Cu), tin (Sn), and minor quantities of other elements including lead (Pb) and zinc (Zn).

What is the grade of tin bronze UNS C90700?

UNS C90700 is categorized as tin bronze material, which is admired for its good tensile strength, corrosion resistance, and ease of being machined.

What are the most frequently used applications of UNS C90700 tin bronze?

UNS C90700 tin bronze is widely used in bearings, bushings, gears, valve and marine hardware parts because of its superb properties of wear resistance and corrosion resistance.

Is UNS C90700 tin bronze weldable or not?

It is possible to weld UNS C90700 tin bronze through different techniques, although care must be taken in order to coordinate preheat and subsequent heat treat to avoid complications such as hot cracking and porosity.

Raw Material Prices (Updated as on: 06 Oct 2024 01:52 PM) LIVE RATES

MetalsPrice/TonnePrice/KG
Nickel$17,750₹1,491.37
LME$17,831₹1,498.13
Copper$10,099₹848.47
LME$9,935₹834.69
Aluminum$2,636₹221.50
LME$2,665₹223.94
Zinc$3,160₹265.53
LME$3,170₹266.35
Lead$2,141₹179.90
LME$2,154₹180.99

Currency Rates (Updated as on: 06 Oct 2024 01:52 PM) LIVE RATES

  • 1 USD = 84.02 INR
  • 1 CNY = 11.97 INR
  • 1 AED = 22.88 INR
  • 1 USD = 3.67 AED
  • 1 USD = 7.02 CNY
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