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L93

L93
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L93

Product catalog summary
Typical Applications: The L93 Copper alloy is primarily used in aerospace and defence components, as well as high technology applications.
Product Description: This is a strong Copper alloy with a composition of 3.9 to 5.0% Copper. It is a rolled plate specification that has been solution treated, artificially aged, and stress relieved to achieve the T651 condition. It is equivalent to the 2014AT651 general engineering standard.
Surface Treatment: The alloy can be anodised with varying results: protective anodising is fair, bright anodising is unsuitable, hard anodising is good, and colour anodising is fair, limited to dark colours. Plating is very good, but vitreous enamelling is unsuitable.
Chemical Composition: The alloy consists of Aluminium (remainder), Silicon (0.50-0.90%), Iron (max 0.50%), Copper (3.9-5.0%), Manganese (0.40-1.2%), Magnesium (0.20-0.80%), Chromium (max 0.10%), Nickel (max 0.20%), Zinc (max 0.20%), Titanium + Zirconium (max 0.20%), Lead (max 0.05%), and Tin (max 0.05%).
Mechanical Properties: The mechanical properties vary with thickness, with proof stress ranging from 340 to 410 MPa, tensile strength from 400 to 460 MPa, and elongation percentages from 2.5% to 7% depending on the thickness and direction of the test sample.
Technical Assistance: The company offers technical support through a team of qualified metallurgists and engineers.
Production Tolerances: Manufacturing limits are specified in Section 14 of BS L100. Further assistance is available through the Sales Department or Laboratory.
Weldability: The alloy is not recommended for brazing, soldering, or oxygen welding. However, it is excellent for resistance, spot, and beam welding.
Machinability: The alloy has good machinability.
Corrosion Resistance: The alloy has poor resistance to atmospheric attack.
Cut Size to Sawn Blanks: The alloy can be cut to length in-house with a tolerance of Nil + 1.6mm.
Disclaimer: The information provided is based on approximate testing and does not constitute a guarantee of properties or processing possibilities. Warranties and liabilities are stated in the company's terms of trading.
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Catalog excerpts

L93-1

L93Technical Datasheet Aluminium Plate Service. Quality. Value. Protective - Fair Bright - Unsuitable Hard - Good Colour - Fair (Dark Colour Only) Vitreous Enamelling Unsuitable • Aerospace & Defence Components Anodising • High Technology Applications A strong 3.9 to 5.0% Copper alloy, rolled plate specification. i Solution treated, artificially aged and stress relieved Plati,Ggd (control stretched) to achieve the T651 condition. Very Good General Engineering Equivalent - 2014AT651 General Engineering Euronorm - EN 485/515/573 Old BS Spec - HP15TF (BS1470) AECMA Euronorm - None Brazing & Soldering - Not Recommended Oxygen - Not Recommended Resistance, Spot, Beam - Excellent Manufacturing limits are as stated in the Section 14 of BS L100 - Tables (F1,2, 5, 7 & 8). For further assistance please contact our Sales Dept / Laboratory. Corrosion Resistance Resistance to Atmospheric Attack - Poor Cut to length in house to tolerances - Nil + 1.6mm All information in our data sheet is based on approximate testing and is stated to the best of our knowledge and belief. It is presented apart from contractual obligations and does not constitute any guarantee of properties or of processing or application possibilities in individual cases. Our warranties and liabilities are stated exclusively in our terms of trading. © Smiths Metal Centres 2017

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.