hardness of antimony

  • Antimony

    Antimony is a silvery, lustrous gray metalloid with a Mohs scale hardness of 3, which is too soft to make hard objects; coins of antimony were issued in China's Guizhou province in 1931 but the durability was poor and the minting was soon discontinued.

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  • Antimony: The mineral native Antimony information

    Antimony is a minor ore of the element antimony, although most antimony comes from antimony compounds (namely Stibnite), which are much greater in abundance. Antimony has a very interesting property: It is similar to water, in that instead of contracting when it solidifies, like all other matter, it expands.

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  • Antimony Element information, properties and uses

    Antimony and its compounds were known to the ancients and there is a 5,000 year old antimony vase in the Louvre in Paris. Antimony sulfide (Sb 2 S 3) is mentioned in an Egyptian papyrus of the 16 th century BC.

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  • Antimony: Antimony mineral information and data.

    Metallic antimony is an extremely brittle metal with a flaky, crystalline texture.

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  • What is the hardness of antimony Answers.com

    Antimony is an element with the chemical symbol Sb and atomicnumber of 51. Its hardness on the Mohs scale is 3 3.

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  • Hardness of Lead Alloys PnJ Resources

    Hardness of Lead Alloys. Alloy % Lead % Tin % Antimony: BHN Hardness: Monotype: 72: 9: 19: 28: Stereotype

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  • Guarantee Lee Precision

    For example, if you increase the amount of tin by ‹0% and the amount of antimony by 5%, the Brinell hardness of your lead will be ‹2.5 Brinell hardness 2.5 = 5 + (0.29 x 0) + (0.92 x 5 ) warning

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  • Effect of antimony on the mechanical properties of

    Astudyofwasmadetheeffectofadditionsofantimony(fromto0.58per cent)upontheBrinellhardness,thestructure,theIzodimpactvalue,thedefor

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  • Hardness of Lead Alloys PnJ Resources

    Hardness of Lead Alloys. Alloy % Lead % Tin % Antimony: BHN Hardness: Monotype: 72: 9: 19: 28: Stereotype

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  • Guarantee Lee Precision

    INSTRUCTIONS FOR THELead˙Hardness˙Testing˙Kit For every —% additional antimony, Brinell hardness increases 0.92 Sample equation:

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  • Chapter 3 Alloy Selection and Metallurgy, Cast Bullet

    Chapter 3. Alloy Selection and Metallurgy : Lead was While antimony increases the hardness of lead, it does so by impairing its malleability.

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  • Antimony Element information, properties and uses

    It is alloyed with lead or other metals to improve their hardness and strength. A lead antimony alloy is used in batteries.

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  • Antimony Periodic table

    Antimony's properties, discovery, videos, images, states, energies, appearance and characteristics. adding hardness and smoothness of finish.

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  • Tacticool Products Bullet Hardness

    The Importance Of Bullet Hardness Antimony and arsenic are more common and more effective alloying agents to increase lead hardness.

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  • Lead Bullet Hardness The Firearms Forum The

    Jan 24, 2010Just curious, my local source for lead bullets has given me the following information on his cast bullets. 92% Lead 6% Antimony 2% Tin Saeco Hardness 8.5 to 9

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  • Antimony (Sb) – Properties, Applications

    Antimony is a chemical element with Sb as its symbol. It belongs to group 15, periodic number 5 of the periodic table. The metallic form of this element is bright, silvery, and brittle. The Mohs scale for hardness is 3 for this metal. It is a poor conductor of heat and electricity. Antimony occurs

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  • Properties of lead bismuth, lead tin, type metal,

    RP248 PROPERTIESOFLEAD BISMUTH,LEAD TIN,TYPE METAL,ANDFUSIBLEALLOYS ByJ.G.Thompson ABSTRACT Thetensilestrength,hardness,andelongationofanumberofleadalloyshave beendeterminedandarepresentedherewith.

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  • Antimony Content Of Shot Shotgun Report#174;

    I think it's might be helpful to cover what antimony does Antimony is the metal element used to increase the hardness 2 Responses to Antimony Content Of Shot.

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  • Antimony Facts Periodic Table of the Elements

    Antimony is widely used in alloying to increase hardness and mechanical strength. Antimony is used in the semiconductor industry for infrared detectors,

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  • Lead alloy calculators Gunloads.com

    Mar 16, 2011EDIT (2/6/11): Added Brinell hardness estimate. EDIT Lead alloy calculators Separated magnum shot into two categories by pellet size 4% 6% antimony.

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  • Antimony chemical element Britannica.com

    Antimony exists in many allotropic forms Even when added in minor quantities, antimony imparts strength and hardness to other metals, particularly lead,

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  • Antimony USGS

    Antimony is an important mineral commodity used widely in modern industrialized societies. The element imparts strength, hardness, and corrosion resistance to alloys that are used in many areas of industry, including in lead acid storage batteries.

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  • ATSDR Public Health Statement: Antimony

    Jan 21, 2015Antimony is a silvery white metal of medium hardness that breaks easily. Small amounts of antimony are found in the earth's crust. Antimony ores are mined and then either changed into antimony metal or combined with oxygen to form antimony oxide.

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  • Alloys rserv.com

    Some bullet suppliers claim some pretty outrageous Brinell hardness numbers and antimony percentages. The fact is that the local lead supplier, for the most part, determines what is available. The lead suppliers are pretty sharp people, at least mine is.

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  • American Rifleman Bullet Casting: Bullets on the Cheap

    Bullet Casting: Bullets on the Cheap. by Dave Campbell With a Brinell hardness They utilize varying amounts of tin and antimony,

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  • Shot Hardness Shotgun Report#174;

    Antimony reduces the weight of the pellet so one with more antimony has less energy at range than one with less. What the Italians do, is the still soft pellet is dropped in water. We did this for IHMSA long distance metallic silhouette shooting.

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  • How much does antimony/tin increase hardness The High Road

    May 24, 2014Somewhere, I saw some numbers that say how much bhn increases for each percentage of antimony or tin added to the mix. For the life of me, I can't

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  • Lead alloy calculators Gunloads.com

    Mar 16, 2011EDIT (2/6/11): Added Brinell hardness estimate. EDIT Lead alloy calculators Separated magnum shot into two categories by pellet size 4% 6% antimony.

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  • Antimony USGS Mineral Resources Program

    Antimony imparted hardness to the alloy and had the property of expanding at the moment of solidifying, thus giving to the type a clean, sharp face. Some antimony was

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  • Tin Antimony Alloy AMERICAN ELEMENTS

    Antimony has numerous applications, most commonly in flame retardant materials it also increases the hardness and strength of lead when combined in an alloy and is frequently employed as a dopant in semiconductor materials.

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  • Hardness Scale for Various Materials AutoDrill

    Hardness Scale for Various Materials. November 21st, 2011. posted by AutoDrill. MATERIAL: BRINELL HARDNESS: Drilled Diameter With Suggested Feed Rate Below:

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  • A Few Comments on Cast Bullet Alloys by Glen E

    A Few Comments on Cast Bullet Alloys , antimony provides hardness and the ability to harden through heat treatment, and a small amount (0.05 0.5%)

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  • Material Hardness Tables, Ted Pella, Inc.

    Antimony 3.0 3.3 Magnesium 2.0 Apatite 5 Magnetite 6 Comparison of Hardness Values of Various Materials on Mohs and Knoop Scales

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  • Differences Between 'Lead' 'Hard Cast' Bullets

    Hard cast bullets can be formulated of numerous alloy mixes (antimony, silver, tin, etc) containing some lead, but the alloys make the bullet much harder than pure lead. Pure lead has a Brinell hardness # of about 4.

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  • Who Puts the Hardest Shot in Lead Target Shotshells?

    Who Puts the Hardest Shot in Lead Target Shotshells? Years ago, Bob Brister remarked, “The only thing more expensive than the antimony is the alimony,” or words to that effect. In October, 2016, there was an eleven page thread eruption on the subject of lead shot hardness.

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  • Who Puts the Hardest Shot in Lead Target Shotshells?

    Who Puts the Hardest Shot in Lead Target Shotshells? Years ago, Bob Brister remarked, “The only thing more expensive than the antimony

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  • Lead Hardness??? Springfield XD Forum

    Feb 10, 2008I have been doing some reading on lead hardness and the Brinell scale. For me I like bullets quite a bit harder I bet they are using 2% tin 6% antimony

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  • Antimony Mineral Data

    Hardness: 3 3.5 Calcite Copper Penny : Luminescence Magnetism: Nonmagnetic : Streak: lead gray : Optical Properties of Antimony : RL Anisotrophism: Weak in air

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  • Antimony and Tellurium Alloys

    In the case of antimony tellurium alloys, making them hard and brittle; but, on the other hand, it gives the necessary hardness to the lead of type metal,

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  • Lead Shot hardness tester? Trap Shooters Forum

    Feb 14, 2010Since Antimony is the hardening agent, lead shot hardness analysis, lead shot hardness tester, measure hardness of lead shot, neil winston shot hardness,

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  • Miscellaneous Questions Fr. Frog's Pad

    Miscellaneous Questions #13. How do you measure the Brinell hardness of lead alloys? especially if your alloy contains wheel weights and their antimony and

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  • Adventures in Lead Hardness Testing leadandbrass.com

    There has been quite a bit of discussion on various forums about the effectiveness of inexpensive lead hardness 1.8% Antimony and .12 hardness tester

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  • Antimony Minerals Education Coalition

    Antimony is used for many technological and industrial purposes. Antimony is used as a hardening alloy for. Moh's Hardness. 2. Crystal System. Orthorhombic. Color.

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  • Lead Bullet Hardness The Firearms Forum The

    Jan 24, 2010Just curious, my local source for lead bullets has given me the following information on his cast bullets. 92% Lead 6% Antimony 2% Tin Saeco Hardness 8.5 to 9

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  • Eagle shot Cabelas says it has 5% antimony Page 2

    Feb 09, 2018Eagle shot Cabelas says it has 5% antimony. and the lead is being alloyed with different formulations so that it emulates prior shot hardness with 5% antimony

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  • What Is Antimony? WorldAtlas.com

    What Is Antimony? Antimony is a naturally existing chemical element. Antimony has a Mohs scale hardness of three, which is too soft to build hard objects.

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  • Arsenic: The mineral native Arsenic information and

    Arsenic and Antimony are almost identical. In many instances, the only way to tell them apart is by conducting complex scientific tests. Hardness: 3 4: Crystal

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  • age hardening Shooters Forum

    Jun 16, 2015age hardening. Registered Users do not see the above ad. So it's presence increases hardness but the lead, tin, antimony mix

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  • Evaluations Recommendations for Lead Alloy Hardness

    Evaluations Recommendations for Lead Alloy Hardness Testers, lead hardness testers. weights with antimony will age harden.

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