ChroMiuM boride
ChroMiuM boride
- CAS:
- 12007-16-8
- MF:
- B2Cr
- MW:
- 73.62
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Properties
- Melting point:
- 1550°C
- Density
- 5.15
- storage temp.
- -20°C
- form
- Powder
- color
- Gray
- Water Solubility
- It is insoluble in water.
- Crystal Structure
- Hexagonal a = 292.9 pm c = 306.6 pm C32, hP3, P6/mmm, AlB2 type (Z = 1)
- Exposure limits
- NIOSH: TWA 0.0002 mg/m3
- Stability:
- Strongly corroded by molten metals such as Mg, Al, Na, Cu, Si, V, Cr, Mn, Fe, and Ni; corrosion resistant to liquid metals Cu, Zn, Sn, Rb, and Bi
Safety Information
- Symbol(GHS)
GHS07,GHS08,GHS09
- Signal word
- Danger
- Hazard statements
- H410-H350-H317
- Precautionary statements
- P273-P391-P501-P261-P272-P280-P302+P352-P333+P313-P321-P363-P501
- WGK Germany
- 3
- TSCA
- Yes
Use
Chromium boride occurs as very hard crystallinepowder in several phases: the CrBorthorhombic crystal, the hexagonal crystalCr2B, and the tetragonal crystal Cr3B2. Chromiumboride parts produced by powder metallurgyhave a specific gravity of 6.20 to 7.31,with a Rockwell A hardness of 77 to 88. Theyhave good resistance to oxidation at high temperatures,are stable to strong acids, and havehigh heat-shock resistance up to 1316°C. Thetransverse rupture strength is from 552 to 931MPa. CrB is used for oil-well drilling. A sinteredmaterial, used for gas-turbine blades, contains85% CrB with 15% nickel binder. It hasa Rockwell A hardness of 87 and a transverserupture strength of 848 MPa.
0 India supplier list of "ChroMiuM boride"
-
25 G$98.07
- Product Name:CHROMIUM DIBORIDECHROMIUM DIBORIDECHROMIUM DIBORIDECHROMIUM DIBORIDE
- Products Intro:Brand: gfschemicals | Product Number: A1839
- Company Type: Reagent
- Country/Region: UNITED STATES
- Main Products: cof,mof