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SP 183/2 Yellow Master Alloy
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SP 183/2 Yellow Master Alloy

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Carat : 18 - 22Colour : Indian YellowMelting Temp of Alloy : 870 0C Application: The alloy SP 183/2 is an ideal choice for hand-made and investment cast jewellery, usable from 18 to 22 carat. It is suitable for jewellery manufactured for both Indian as well as Western markets. It gives desired softness in 18 carat; and with its good fluidity it ensures very sound and porosity-free cast
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Mehta Distributors

Soni Bazar, Rajkot, Gujarat
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Product Specification

Product Description

Carat     : 18 - 22

Colour    : Indian Yellow

Melting Temp of Alloy      : 870 0C                         

Application: The alloy SP 183/2 is an ideal choice for hand-made and investment cast jewellery, usable from 18 to 22 carat. It is suitable for jewellery manufactured for both Indian as well as Western markets. It gives desired softness in 18 carat; and with its good fluidity it ensures very sound and porosity-free cast finished products.

Recommended Practice:                      18K                              22K 

Application                                : Casting / H-made           Casting / H-made

Alloying Temp.                           : 10000C - 10300C            10400C - 10600C

Casting Temp.                            : 9800C - 10200C              10200C - 10400C

Flask Temp. [Normal Cast]          : 6400C - 6600C                6400C - 6500C

Flask Temp. [Stone Cast]           : 6200C - 6400C                6200C - 6400C

Quenching Time                        : 10 - 15 minutes.            15 - 25 minutes

Notes:
Pre-Alloying is strongly recommended simply to ensure better homogeneity in castings as well as in hand made products. Also, for still better results, pre-alloying in an inert atmosphere is always preferred.
The actual casting temperatures and flask temperatures shall be decided by the parameters like the section thickness of the items (thick, medium or thin), the overall size/bulk of the cast tree, the design intricacies etc.
As a thumb rule, for thinner sections higher temperatures are selected and for thicker sections lower temperatures are preferred. At the same time, designs demanding higher form filling capabilities, higher than normal temperatures are an obvious choice.
The 18 carat casings have a tendency to get hardened and subsequently give problems of cracking especially when flasks are cooled very slowly. For this reason, it is recommended that the flasks are cooled as fast as permitted by the quality of diamonds and also by the design parameters.
Cast Tree Cleaning & Drying procedure: After primary removal of the investment during quenching, submerge tree in a hot (80-100oC) 50% phosphoric acid solution for 15-20 minutes. Rinse well with cool water to remove remaining investment powder and base metal oxides. Dry with compressed air.
For reusing the castings we recommend 60% fresh carat gold with 40% castings. 


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SP 183/2 Yellow Master Alloy

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About us

Year of Establishment2010
Legal Status of FirmSole Proprietorship (Individual)
Nature of BusinessManufacturer
Number of EmployeesUpto 10 People
Annual TurnoverUpto Rs. 50 Lakh
IndiaMART Member SinceAug 2014
Incepted in the year 2010, at Rajkot (Gujarat, India), we “Mehta Distributors” are a well-renowned manufacturer, distributor and supplier of a comprehensive range of Gold Master Alloy, Silver Master Alloy, Solder Master Alloy and Imitation Jwellery Alloy. Offered master alloys are manufactured using the finest quality basic metals with high level of precision and with the help of advanced technology in order to meet set quality standards. The offered master alloys are highly appreciated for features like fine finish, good physical property, excellent malleability, purity, etc. These master alloys are available in various specifications as per the detailed requirements of clients. Apart from this, these master alloys are used manufacturing various types of jwellery. We are an authorized distributor of Spangle brand.
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