Product Description:
The fine rolled thread bar is a kind of hot rolled straight bar with discontinuous external thread of high strength, high size and large diameter. The bar can be connected or anchored with a connector or anchor with internal thread at any cross section. Fine rolled threaded steel bars are also called threaded steel bars for prestressed concrete.
Product details:
1.Outline size and allowable deviation of fine rolled rebar:
2. Mechanical properties of fine rolled rebar:
3.Classification of fine rolled thread bars:
The fine rolled thread rebar can be roughly classified from the following three aspects: application field, geometry, material and specification.
According to the application field, it can be divided into five categories:
Fine rolled thread steel bar for non-destructive construction: mainly used for building durability test and structural non-destructive testing.
2. Fine rolled thread reinforcement for geotechnical engineering monitoring: mainly used for dam, tunnel, landslide field detection and geotechnical engineering test.
3. Advanced fine rolled thread reinforcement: mainly used for testing coating, pipeline, metal, plate and other materials structural characteristics assessment.
4. Fine rolled thread reinforcement for laboratory materials: mainly used for geotechnical, cement, concrete, asphalt, rock and aggregate test.
5. Highway bridge fine rolled thread steel bar: mainly used for road, wharf, airport, railway, bridge field detection.
Classification according to geometric shape, that is, classification according to the cross-section shape of the ribs and the different spacing of the ribs.
Classification by material and specification:
There are PSB500 grade, PSB785 grade, PSB830 grade, PSB930 grade, PSB1080 grade.
4. Chemical composition of fine rolled rebar:
In the chemical composition of steel, the content of sulfur and phosphorus is not more than 0.035%.
5. Application range of fine rolled rebar:
High-rise building, water and hydropower dam, urban light rail, urban interchange, highway bridge, port terminal railway bridge, intermittent sliding film propulsion, heavy lifting, tower building, warehouse factory building, bridge and tunnel pushing, large containers and ships, steel engineering, replacement of bridge support, bridge and building reinforcement, sleeper, anti-magnetic and anti-corrosion engineering (fiber anchor), subway, tunnel mine top anchor top, foundation Foundation reinforcement, prestressed grid, rock slope protection anchoring, large buildings, external prestressed engineering, carbon fiber reinforcement, pre-tensioned beam field construction, cable-stayed cables, suspension cables, etc.
