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Tungsten carbide (WC)

Tungsten carbide (WC) structure

CAS No:
12070-12-1
Formula:
CW
Chemical Name:
Tungsten carbide (WC)
Synonyms:
Tungsten carbide (WC);Tungsten monocarbide;Tungsten carbide;Tungsten monocarbide (WC);WCIO;SL 350;Tungsten carbide (W2C2);WC 20;Sylcarb SC 45;Syl-Carb SC 104;J 05;TJ 05;WC 20 (carbide);GWC 30;WC 10 (carbide);Valenite 1399;CW 500;NC 16;NC 16 (carbide);WC-F;WWI 13PB;WC 02NR;WC60S;Wolfram carbide;YG 1;1WC;WC 50;GWC 030;ZBW 15;XLWC 30;ZWC 30;Xiamen 20;Xiamen 46;Guangdong 17;Guangdong 18;WC 10;WC 25;WC60;NCWC 10;52555-87-0;182169-08-0;182169-11-5;188300-42-7;188300-43-8;188300-44-9;188300-45-0;2089386-72-9;2135330-57-1
Categories:
Inorganic Chemistry > Inorganic Salts

Description

Gray powder. Mohs hardness of 9+ in solid form. Insoluble in water but readily attacked by a nitric acid–hydrofluoric acidmixture. Stable to 400C with chlorine, burns in fluorine at room temperature, oxidizes on heating in air.A black powder,WC, made by heating powderedtungsten metal with lamp black at1600°C. It is extremely hard (9.5 onMohs’ scale) and is used in dies andcutting tools. A ditungsten carbide,W2C, also exists.

Tungsten carbide (WC) Basic Attributes

Molecular Weight：

195.85

Exact Mass：

195.950897

EC Number：

235-123-0

HScode：

28499020

Characteristics

PSA：

XLogP3：

0.08130

Appearance：

Gray powder

Density：

15.6 g/cm³

Melting Point：

2780 °C

Boiling Point：

6000 °C

Water Solubility：

soluble in nitric acid and hydrofluoric acid. Insoluble in water.

Vapor Pressure：

4 mmHg

Safety Information

Packing level：

III

Hazard category：

4.1

Transport codes：

UN3178

hazard class code：

safety instructions：

22-24/25

RTECS Number：

YO7250000

Marks：

Storage features：

Separated from strong oxidants.

Stability/Shelf Life：

STABLE TO 400 DEG C WITH CHLORINE

Precautionary statement(s)：

P210, P240, P241, P280, P37, P378

Hazard Statements：

H228

Tungsten carbide (WC) Use and Manufacturing

Methods of Manufacturing

The tungsten powder carbonization method reduces the tungsten trioxide by hydrogenation to produce tungsten powder (average particle size 3~5μm). Then mix tungsten powder and carbon black in equal molar ratio (dry mixing with a ball mill for about 10 hours), and pressurize and form at a pressure of about 101.325 Mpa. Put the press-molded powder into a graphite disc or crucible, and heat it to 1550～1650℃ in a hydrogen gas flow (using pure hydrogen with a dew point of -35℃) using a graphite resistance furnace or induction furnace, and then carburize it. Tungsten carbide products.

Uses

Tungsten carbide is extremely hard and are excellent cutting materials. It is used extensivly in the tool and die industry for drilling and cutting tools, sand blasting nozzels, armor-piercing bullets, and studs to increase traction of tires.Besides, it is used in dental burs, surgical instruments, wear-resistant coatings; in manufacture of cemented carbide; Substitute for noble metals in catalysis.

Material

Carbon black

Recommended Suppliers of Tungsten carbide (WC)

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Tungsten(IV) carbide

CAS No.: 12070-12-1

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Tungsten boride (WB2) Formula

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What is Aluminum tungsten oxide (Al2W3O12)

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What is Molybdenum carbide (MoC)

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Guide of Tungsten carbide (WC)

Description
Basic Attributes
Characteristics
Safety Information
Use and Manufacturing
Material
Recommended Suppliers
Learn More Other Chemicals

Tungsten carbide (WC)

SDS

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