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China National Building Materials Group Corporation (CNBM) was established in 1984 with approval of the State Council, and then became a Central Enterprise under direct supervision of State-owned Assets Supervision and Administration Commission of the State Council in 2003. It is in charge of the administrative affairs in China building materials industry. By the end of 2013, CNBM’s total assets exceeded RMB 360 billion, with over 130,000 employees, and 20 companies under direct management with 100% share control or majority control, among which 6 were listed companies, including 2 oversea listed. On July 7th, 2014, CNBM with revenue USD 41028 million, was ranked 267th on the ”World Top 500 Enterprises” by Fortune Magazine.
CNBM International Corp., established in 2004, is the business entity for trade and logistics of CNBM GROUP. It is in charge of the export of finished products as well as import of raw materials for its sister companies under the group. By the end of 2014, we have more than 30 business departments for different products and over 10 oversea offices for sales and customer service. CNBM –quality bar and special steel products regard quality as the essential factor leading to successful business. All the products are produced under the quality management system and tested by CNBM. Through years of effort, CNBM-quality bar and special steel products have built up great reputation in quality and service among customers all over the world.
CNBM International has subsidiaries and offices in 25 countries worldwide, which made us well-capable to provide excellent services to our global customers.
Technical Parameter of HRB400:
HRB400 |
Chemical Composition(%) |
C |
Mn |
Si |
P |
S |
0.25max |
1.60max |
0.80max |
0.045max |
0.045max |
||
|
Mechanical Property |
Yield Strength |
Tensile Strenth |
Elongation |
|||
400Mpa min |
540Mpa min |
16% |
||||
Technical Parameter of HRB 500:
HRB500 |
Chemical Composition(%)
|
C |
Mn |
Si |
P |
S |
0.25max |
1.60max |
0.80max |
0.045max |
0.045max |
||
|
Mechanical Property |
Yield Strength |
Tensile Strength |
Elongation |
|||
500Mpa min |
630Mpa min |
15% |
||||
Technical Parameter of HRB 335:
HRB335 |
Chemical Composition (%) |
C |
Mn |
Si |
P |
S |
0.25max |
1.60max |
0.80max |
0.045max |
0.040max |
||
|
Mechanical Property |
Yield Strength |
Tensile strength |
Elongation |
|||
335Mpa min |
455Mpa min |
17% |
||||
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