BRIGHT STEEL BAR
Bright steel bar is carbon or alloy steel bar with shining bright surface which is improved by cold drawing, peeling, turning, grinding and polishing over hot rolled black surface bars. By cold drawing, the steel bar yield strength and tensile strength will be improved. By peeling and turning, the surface imperfections will be removed. By grinding, the diameter tolerance will be more precision. By polishing, the surface will be much more shining.
Except the shining bright surface, comparing with the hot rolled black surface bars, the bright steel bars has better surface roughness, better roundness, straightness, more precision size tolerance etc.
Heat treatment such as annealing, normalizing, quenching and tempering will be done before do cold finishing on the hot rolled bar to get bright steel bar, in such condition, the steel bright bar will get most suitable mechanical properties to meet different application requirement.
The advantages of steel bright bars we supply:
1) Big stocks of hot rolled round bars or wire rods as raw materials
2) Heat treating furnaces to adjust the mechanical properties
3) Full sets of testing equipment to test the sizes, mechanical properties and microstructure.
4) Multiple packages to avoid broken packages and anti-rusty
Diameter tolerance
+0/-0.02mm
Straightness
0.5mm/m
Surface roughness
0.4um
Roundness
80% of diameter tolerance
Diameter range
14mm to 100mm
Steel grade
Kinds of carbon steel and alloy steel
Length
Any length can be cut with precision tolerance
Bright Steel Bar,Bright Steel Round Bar,Steel Bright Bar,Bright Polished Steel Bar,Alloy Steel Bright Bar Manufacturer SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdhighstrengthsteelbolts.com
On the same day, the two sides exchanged views on cooperation. Chen Hong introduced the current production and operation of Chongqing Iron and Steel Co., Ltd. to the leaders.
On behalf of the Chongqing Iron and Steel Group, Guo Deyong welcomed the arrival of the leader of Sinotrans Changhang Group Shipbuilding Heavy Industry Corporation. He said that in the near future, Chongqing Iron & Steel Co., Ltd. has continuously improved its quality through the annual equipment repair and a series of technical research activities. On the basis of mutual benefit and mutual benefit, the two sides conducted friendly consultation and effective communication, reached a consensus on the total supply and demand of steel in 2013, and signed a supply and demand agreement, which will have a far-reaching impact on the coordinated development of the two sides.
Li Wende thanked Chongqing Iron and Steel for its warm reception and attention at the signing ceremony. He said that Sinotrans Changhang Group Shipbuilding Heavy Industry Co., Ltd. has always adhered to the principle of “building first-class ships and providing first-class services†and successfully built a new shipbuilding market. Batch brand products. Li Wende said that it will continue to provide quality services in resource allocation, contract management and after-sales service, and continuously deepen the strategic cooperation relationship between the two parties.
It was learned from the Chongqing Iron and Steel Group that on the morning of November 8, Chongqing Iron & Steel Co., Ltd. and Sinotrans Changhang Group Shipbuilding Heavy Industry Corporation signed a supply and demand agreement in the conference room of the Steel City Building Conference Center. Guo Deyong, deputy general manager of Chongqing Iron and Steel Group, Chen Hong, general manager of Chongqing Iron and Steel Co., Ltd., Li Wende, general manager of Sinotrans Changhang Group Shipbuilding Industry Corporation, deputy general manager and director of Qingshan Shipyard Xie Qizhi attended the signing ceremony.