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
Dalian Ship Chai Guo Zhongmin was once again selected for the Navy’s Gulf of Aden escort formation
At 9 o'clock on the morning of August 4th, the 20th escort formation of the Chinese Navy demobilized from a military port in Sanya and went to the Gulf of Aden and the Somali waters to carry out escort missions. Guo Zhongmin, a staff member of the Dalian Marine Diesel Assembly Workshop, was selected for the technical support of a supply ship for the escort formation.
It is reported that this is the second time that Guo Zhongmin has been invited to provide power technical support for a supply ship of the naval escort formation. In July of this year, Dalian Shipai received an emergency from a certain department of the Navy. Due to frequent failures of a supply ship, a domestic machine manufacturer responsible for maintenance has been helpless. Two employees, Peng Kai and Guo Zhongmin, were invited to a military port to investigate the cause of the failure. To guide the mainframe repair work. After Peng Kai and Guo Zhongmin ushered in a supply ship, after a series of investigations and maintenance work, the host failure was eliminated. In order to ensure the smooth completion of the escort mission, the Navy also specially invited Guo Zhongmin to set off with the escort formation officers and soldiers to provide technical support for a supply ship.
Guo Zhongmin is the squad leader of the final assembly of the Dalian Shipyard assembly shop. Since joining the work in 1978, he has always adhered to the first line of production, starting from a common assembly fitter. With earnestness and perseverance, coupled with the accumulation of water-dropping stone, he has gradually grown into a diesel engine assembly and maintenance expert, and has undertaken many important models. As for the assembly work, the company has successfully completed the after-sales service of the company. He has successively won many honorary titles such as “Model Workersâ€, “Top Ten Models†and “Outstanding Party Membersâ€.