Do You Know How The UK Coins Are Made And What Are They Made of?

image

The processes involved in producing a coin can be broken down into three different sections: making the blanks, making the dies and striking the coins.

Making the blanks

Depending on the alloy required, the appropriate metals are melted in the necessary proportions in a furnace. The metal is then extracted from the furnace in the form of a continuous strip, which is cut to produce coils weighing up to 2.8 tonnes. The strip is passed through powerful rolling mills to reduce it to the thickness of a coin. Blank discs of metal are then punched from the strip in a blanking press at a rate of up to 10,000 a minute. Rolling metal under great pressure makes it hard so the blanks have to be softened, something which is achieved by heating them in an annealing furnace at up to 950°C.

Making the dies

Once a design has been approved, a plaster model is prepared at several times the diameter of the intended coin. The plaster model is scanned by a ruby-tipped probe which records the design as a digital file on a computer. Guided by this digital file, an engraving machine cuts the design into a piece of steel at the correct size of the coin. Known as a reduction punch, this piece of steel is then used to make the dies which will actually strike the coins.

Striking the coins

For the final stage of the process, the blanks are fed into a coining press containing a pair of dies. Applying a pressure of around 60 tonnes, the dies strike the blanks and turn them into coins at speeds of up to 850 a minute.

= 1 penny coin =

First Issued February 15, 1971

Diameter 20.3mm

Weight 3.56g

Thickness Bronze: 1.52mm. Copper-plated steel: 1.65mm

Composition Bronze (97pc copper, 2.5pc zinc, 0.5pc tin)

image

= 2 pence coin =

First Issued February 15, 1971

Diameter 25.9mm

Weight 7.12g

Thickness Bronze: 1.85mm. Copper-plated steel: 2.03mm

Composition Bronze (97pc copper, 2.5pc zinc, 0.5pc tin)

image

= 5 pence coin =

First Issued Smaller version in June 1990.

Diameter 18.0mm

Weight 3.25g

Thickness 1.7mm

Composition Cupro-nickel (75pc copper, 25pc nickel)

image

= 10 pence coin =

First Issued Smaller version in September 1992.

Diameter (since 1992) 24.5mm

Weight 6.5g

Thickness 1.85mm

Composition Cupro-nickel (75pc copper, 25pc nickel)

image

= 20 pence coin =

First Issued June 9, 1982

Diameter 21.4mm

Weight 5g

Thickness 1.7mm

Composition Cupro-nickel (84pc copper, 16c nickel)

image

= 50 pence coin =

First Issued Smaller version introduced in September 1997. Diameter (since 1997) 27.3mm

Weight 8.0g

Thickness 1.78mm

Composition Cupro-nickel (75pc copper, 25pc nickel)

image

= 1 pound coin =

Issue Date April 21, 1983

Diameter 22.5mm

Weight 9.5g

Thickness 3.15mm

Composition Nickel-Brass (70pc copper, 5.5pc nickel, 24.5pc zinc)

image

= 2 pound coin =

First Issued June 15, 1998

Diameter 28.4mm

Weight 12g

Thickness 2.5mm

Composition, Outer Nickel-Brass (76pc copper, 4pc nickel, 20pc zinc). Inner Cupro-nickel (75pc copper, 25pc nickel)

image

= 5 pound coin =

First Issued August 4, 1990. Previously crowns had a face value of 25p

Diameter 38.61mm

Weight 28.28g

Thickness 2.89mm

Composition Cupro-nickel (75pc copper, 25pc nickel)

Collector versions have been struck in precious metals

image

As an international manufacturer and supplier for copper sheet and bronze sheet, Shanghai Metal Corporation produces slitting, edging, and oscillates winding to fit your specific copper requirements. To find out more, please visit our Website or send your inquiry here. Our English speaking personnel will be more than pleased to help you. Follow us on  LinkedInTwitter, FacebookInstagram and don’t forget to subscribe to our YouTube channel. Or you could try our new mobile app by scanning our QR code.

Sources: Royal Mint, The Telegraph, museumvictoria.com.au

William P.//SMC Editor

Read more articles by this author here.

image

#BuildingValueAcrossTheGlobe

Advertisements

‘Everything But The Kitchen Sink’ – British Slang Translated

Have you ever hung out with a British friend and laughed along with the joke, but just didn’t quite get it? You two may technically speak the same language, but when they use British slang it all goes out of the door.

ukflag2

Well, here are the main British slang phrases that I’m sure sounded like gibberish at the time but will now become crystal clear:

I’m not being funny but…- not to be rude, a precursor to an insult to soften the blow usually

Lost the plot – gone crazy

Cheers –an informal thank you

Quid – 1 unit of currency

Taking the pee/mick – mocking, taking advantage of someone

Sorry – very casually used, doesn’t always mean an apology

Dodgy – suspicious

Sick – Cool

Deep – Can mean either harsh or profound

Everything but the kitchen sink = every resource possible was used

Speaking of, Shanghai Metal produces stainless steel kitchen sinks at manufacturer prices. As an ISO 14001 (International Quality Management System) Company and recipient of the “Star Enterprise Award,” Shanghai Metal Corporation prides itself on exceeding international standards of quality and reliability.

sink

We guarantee the best prices, quality support, and fast delivery – our English speaking personnel will be more than please to help you. To find out more, please visit our Website or send your inquiry here. Follow us on  LinkedInTwitter, FacebookInstagram and don’t forget to subscribe to our YouTube channel. Or you could try our new mobile app by scanning our QR code.

Sources: BBC America, Urban Dictionary, Anglotopia

Siobhan R.// SMC Editor

Read more articles by this author here.

 SMC QR code

#BuildingValueAcrossTheGlobe

The Aftermath Of The BP Oil Spill

After the infamous Gulf of Mexico oil spill one year ago today, BP are still paying for it. Not as widely publicized are the 11 oil rig deaths – instead the public has focused on the environmental impact.

environmentalimpactofoiThrough the end of July, the oil giant paid more than $13 billion to compensate people, businesses and communities affected. The company is disputing some of those claims in court battles that could drag on for years. They allegedly have even more claimants appearing they have yet to address or compensate.

gavel-reverse

This continues the theme of how BP has dealt with the crisis, where during the spill unlikely items such as golf balls, rubber balls and other garbage items in an effort to stop the flow.

oilsteelThere are other ways to deal with these types of accidents in the future. Shanghai Metal manufactures steel salvage tools for ocean oil drilling. As an ISO 14001 (International Quality Management System) Company and recipient of the “Star Enterprise Award,” Shanghai Metal Corporation prides itself on exceeding international standards of quality and reliability. We guarantee the best prices, quality support, and fast delivery. To find out more, please visit our Website or send your inquiry here. Follow us on  LinkedInTwitter, FacebookInstagram and don’t forget to subscribe to our YouTube channel. Or you could try our new mobile app by scanning our QR code.

Source: NPR

Siobhan R.// SMC Editor

Read more articles by this author here.

SMC QR code

#BuildingValueAcrossTheGlobe

The Eden Project: Bringing The Ancient Copper Back To Life

Copper is known to be a major metal and an essential element used all around the globe. It is the oldest metal known to man and was first discovered and used about 10,000 years ago, however it was only alloyed in bronze circa 3000 BC, making it the first engineering material known to man. image

The first facts about copper relates to the pyramids of Cheops, located in Egypt. Archeologists have found water pipes partly made from copper. Piping network has been used in Egypt for more than 5000 years. Therefore, copper was believed as the symbol of the eternal life. In the hieroglyph system, the ancient Egyptian people utilized the ankh symbol to represent copper.

image

Nowadays, copper is not only restricted to piping work, but it has expanded to include heating, cooling and refrigeration, electrical wiring, electronics, power generation and transmission, automotive applications, antimicrobial uses and many more. Moreover, copper can still be considered a symbol of eternal life for the Egyptians; however it can also be considered a sustainable material; when taking in consideration the processes of extraction, production and retail.

image

Therefore, The Eden Project based in Cornwall, England is one of the most innovative and high profile of the Millennium Projects. It is the largest plant enclosure in the world built in the lightest and most ecological way possible. Eden’s aim was to build the Core (education center) with the highest sustainable specifications, challenging the conventions for sustainable design and construction, with targets above the national benchmarks and using carefully selected materials. The team considered the complex interaction between a range of criteria of sustainable issues, specifically waste neutrality, positive futures, recycled content, certification of materials and local sourcing implications.

Eden Project

The key criteria affecting the choice of roofing material were:

• to make a bold architectural statement to complement Eden’s ground-breaking architecture and landscapes;

• to be durable, strong and relatively lightweight;

• to be malleable enough to cope with the complex structure of the roof;

• to have excellent sustainability credentials, and

• most importantly for a building dedicated to education at Eden, the roof should highlight a progressive message relating to sustainable development issues.

image

Panoramic view of the geodesic dome structures of Eden Project eden3 eden1

While copper can be relatively expensive for a roof and is in strong competition with other roofing materials, it is robust, even when turned into sheets, malleable, completely waterproof and very long lasting: physical properties that made it ideal for the roof’s complex design. Aesthetically too, copper is the only common metal; other than gold,  that isn’t grey or silver, making it one of the most easily recognized metals, thus aiding engagement with visitors as a first step to relating the sustainability message.

image

As an international manufacturer and supplier for copper sheet and bronze sheet, Shanghai Metal Corporation produces slitting, edging, and oscillates winding to fit your specific copper requirements. For more information on our copper products please visit our website here. Be sure to join the conversation in our Linkedln group, Facebook and Instagram.

You can also read more articles by our team at SMC:

Who To Blame (Or Thank) For Your Braces

Most Creative Statues

How To Do A Better Job Than Jack

Sources: The Eden project

image

#BuildingValueAcrossTheGlobe

William P.//SMC Editor