Tungsten manufacturers and suppliers

Tungsten suppliers

Properties

Melting point:: 3410 °C (lit.)

Boiling point:: 5660 °C (lit.)

bulk density: 4000kg/m3

Density: 19.3 g/mL at 25 °C (lit.)

vapor pressure: 0Pa at 3000℃

Flash point:: -23 °C

storage temp.: no restrictions.

form: wire

color: Silver-gray

Specific Gravity: 19.3

Flame Color: Green

Resistivity: 4.9 μΩ-cm, 20°C

Water Solubility: insoluble

Merck: 13,9884

Exposure limits: ACGIH: TWA 2 ppm; STEL 4 ppm
OSHA: TWA 2 ppm(5 mg/m3)
NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3)

Stability:: Stable. Dust is flammable, though not likely to present a hazard if normal good practice is used.

Shear Modulus: 156 GPa, Calculated

Poissons Ratio: 0.28

Modulus of Elasticity: 400 GPa

Hardness, Brinell: 444, Converted from Vickers for 3000 kg load/10 mm ball Brinell test. Drawn and annealed.

Hardness, Knoop: 505, Estimated from Vickers.

Hardness, Rockwell A: 74, Converted from Vickers. Drawn and annealed.

Hardness, Rockwell C: 47, Converted from Vickers. Drawn and annealed.

Hardness, Vickers: 480, Drawn and annealed.

CAS DataBase Reference: 7440-33-7(CAS DataBase Reference)

NIST Chemistry Reference: Tungsten(7440-33-7)

EPA Substance Registry System: Tungsten (7440-33-7)

Safety Information

Symbol(GHS): GHS02

Signal word: Danger

Hazard statements: H228-H252

Precautionary statements: P210-P235-P240-P241-P280-P370+P378

Hazard Codes: F,Xi,N,Xn

Risk Statements: 11-36/38-67-65-62-51/53-48/20-38

Safety Statements: 6-26-36-62-61-36/37-16

RIDADR: UN 3089 4.1/PG 2

OEB: B

OEL: TWA: 5 mg/m3, STEL: 10 mg/m3 [*Note: The REL also applies to other insoluble tungsten compounds (as W).]

WGK Germany: -

RTECS: YO7175000

TSCA: Yes

HazardClass: 4.1

PackingGroup: III

HS Code: 81011000

Hazardous Substances Data: 7440-33-7(Hazardous Substances Data)

Use

Tungsten is used in the form of tungsten carbide for very hard and tough dies, tools, gauges, and bits.

You can find Tungsten suppliers, manufacturers, and distributors from countries such as China, United States and the India here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.