General Knowledge - General Science - Discussion

39. 

Which of the following are the ingredients of gun metal?

[A]. Iron, Zinc, Titanium
[B]. Iron, tin
[C]. Iron, Brass, Tin
[D]. Copper, Tin

Answer: Option D

Explanation:

No answer description available for this question.

Sanjeevjaganathan said: (Jun 2, 2011)  
Gun metals is also called as red brass and the composition present in it are copper 88% tin 10% and zinc 2%. Among the given option cu and sn are matched.
So option D is correct.

Parth said: (Apr 23, 2013)  
Gun metal are made by Bronze and Tin.

Bronze : Copper + Zinc.

Gun Metal : Copper+Zinc+Tin.

Sushmitha said: (Sep 4, 2013)  
Gun metals : copper and tin.

Vinay Singh said: (Feb 5, 2014)  
Copper zinc tin is a suitable option of among them.

Apr said: (Jul 9, 2014)  
Gunmetal, also known as red brass in the United States,

[1] is a type of bronze " an alloy of copper (88%), tin (10%), and zinc (2%).

[2] Originally used chiefly for making guns, gunmetal was eventually superseded by steel. Gunmetal casts and machines well and is resistant to corrosion from steam and salt water,

[3] and is used to make steam and hydraulic castings, valves, and gears, and also statues and various small objects, e.g. buttons. It has a tensile strength of 221 to 310 MPa, a specific gravity of 8.7, a density 8,719 kg/m3, and a Brinell hardness of 65 to 74.

Jai Ratwani said: (Aug 8, 2014)  
I think gun metal should contain iron also.

Ch Dharmarao said: (Aug 13, 2015)  
No. Because alloys of gunmetal are copper, tin, zinc.

Sandeep Pandey said: (Jan 16, 2016)  
Copper, zinc & tin is right answer.

Aspirant said: (Feb 11, 2017)  
Copper tin read zinc.

Mohit Rana said: (Feb 11, 2017)  
An alloy of copper, tin and zinc.

Sameer said: (Mar 29, 2017)  
Explain more about this.

Sumo said: (Feb 12, 2018)  
Why are gun metals used?

Akhila said: (Mar 8, 2018)  
Zinc and lead also involved in gunmetal but why the answer is copper and tin?

Karna said: (Sep 1, 2018)  
Gun metal is an alloy of copper.

Pradeep Rvr Jc said: (Sep 6, 2018)  
Gunmetal contains 86% copper, 9.5% tin.

Vaishnavi said: (Dec 26, 2018)  
It is an alloy of copper, tin, and zinc. Proportions vary by approximation but 88% copper, 8"10% tin, and 2-4% zinc is an approximation.

Rajendra Roul said: (Jul 18, 2019)  
Gun metal is an alloy of 10%cu + 1%sn + 1%zn + 88%pb.

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