| Customization: | Available |
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| After-sales Service: | 7*24hours Online |
| Warranty: | 12 Months |
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Hot rolled coil is made from slab (mainly continuous casting slab) as raw material, heated and then made into strip steel by rough rolling and finishing rolling units.
The hot rolled steel strip from the last finishing mill is cooled to the set temperature through laminar flow, and then rolled into steel strip coils by the coiling machine. The cooled steel strip coils are processed into steel plates, flat coils, and longitudinally cut steel strip products through different finishing lines (leveling, straightening, transverse or longitudinal cutting, inspection, weighing, packaging, and marking, etc.) according to the different needs of users.
Simply put, after heating a steel billet (which is the red and hot steel block that is burned on TV), it undergoes several rounds of rolling, edge cutting, and straightening to become a steel plate, which is called hot rolling.
Due to its excellent properties such as high strength, good toughness, easy processing and forming, and good weldability, hot-rolled steel plate products are widely used in manufacturing industries such as ships, automobiles, bridges, construction, machinery, and pressure vessels.
With the increasing maturity of new technologies for controlling hot-rolled dimensional accuracy, shape, surface quality, and the continuous emergence of new products, hot-rolled steel plates and strip products have been increasingly widely used and have stronger competitiveness in the market.
roduct classification
Hot rolled steel plate products include steel strips (coils) and steel plates cut from them. And steel strips (coils) can be divided into straight hair coils and finished coils (divided coils, flat coils, and longitudinal cut coils).
Main products
Hot rolling can be divided into ordinary carbon structural steel, low alloy steel, and alloy steel according to their different materials and properties. According to their different uses, they can be divided into: cold formed steel, structural steel, automotive structural steel, corrosion-resistant structural steel, mechanical structural steel, welded gas cylinder and pressure vessel steel, pipeline steel, etc.
Production process
The hot-dip galvanized hot-rolled sheet production line adopts the improved Sengimir annealing process, with the raw material being hot-rolled and pickled sheet coils. The production process is as follows:
Hot rolled pickling plate coil → uncoiling → cutting head and tail → welding → inlet looper → improved Sengimir method horizontal annealing furnace → hot galvanizing → cooling after plating → zinc layer thickness gauge → smooth leveling and straightening → passivation treatment → inspection table → electrostatic oiling → coiling → weighing and packaging → finished product warehousing.
| Specification | |
Steel Grade |
GB: Q195, Q215, Q235A, Q235B, Q235C, Q235D, Q255A, 255B, Q275, Q295A, Q295B,Q235R Q345R Q345B,Q345C,Q345D,Q345E,Q390A,Q390B,Q390C,Q390D,Q390E,Q420,Q420B,Q420C,Q420DQ420E,Q460D, Q460E, Q500D, Q500E, Q550D, Q550E, Q620D,Q620E,Q690D,Q690E EN: S185, S235JR, S275JR, S355JR, S420NL, S460NL S500Q, S550Q, S620Q, S690Q ASTM: Grade B, Grade C, Grade D, A36, Grade 36, Grade 40, Grade 42, Grade 50, Grade 55, Grade 60, Grade 65, Grade 80 JIS: SS330, SPHC, SS400, SPFC, SPHD, SPHE AISI SAE4140 4145 1020 1Cr5mo 1050 1045 1070 1080 50Crv 12Cr1mov 16Mo3 15Crmo 20Crmo 20Cr 20Mncr5 25CrMo4 35CrMo 40Cr 42Crmo4 NM360 NM400 NM450 NM500 NM550 65MN |
| Standard | GB/T709-2006, ASTM A36, JIS G4051, DIN EN 10083, SAE 1045, ASTM A29M |
| Thickness | 0.15mm-300mm |
| Width | 500-2250mm |
| Length | 1000mm-12000mm or according to customer's special request |
| Tolerance | Thickness: +/-0.02mm, Width:+/-2mm |
| MOQ | 2 Tons |
Application |
1.Automobile, Bridges, Buildings. 2.Machinery, Pressure vessel industries. 3.Ship building, Engineering construction. 4.Mechanical manufacturing, Pavement slab, ect. |
| Package | Bundle with steel strip,Container shipping |
| Capacity | 200000 tons /month |
| Mill MTC | can be supplied before shipment |
| Inspection | The Third Party inspection can be accepted BV |
| Grade | C | Si | Mn | P | S | V | Nb | Al | Ti | Cr | Ni | Cu |
| Q345A | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 | ≤0.15 | ≤0.07 | - | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 |
| Q345B | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | 0.035 | ≤0.15 | ≤0.07 | - | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 |
| Q345C | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.030 | ≤0.030 | ≤0.15 | ≤0.07 | ≥0.015 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 |
| Q345D | 0.18 | ≤0.50 | ≤1.70 | ≤0.030 | ≤0.025 | ≤0.15 | ≤0.07 | ≥0.015 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 |
| Q345E | ≤0.18 | ≤0.50 | ≤1.70 | ≤0.025 | ≤0.020 | ≤0.15 | ≤0.07 | ≥0.015 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 |
Q1. Are you trading company or manufacturer ?
A: We are professional manufacturer, providing a wide range of steel products.
Q2. Do you provide samples ?
A: Yes ,we would provide samples For Free . The courier freight will be covered by customer's account.
Q3.what about the payment terms ?
A: We accept different payment terms like T/T, L/C , Cash, Western Union, online paying etc .
Q4.How about the delivery time?
A: Normally it takes 7-15 days since order confirmation.
Q5. Could you customized as our request?
A: Yes, just tell your demands, we can offer the customized solution for you, such as material, hardness, thickness,width and so on.
Q6.How can I visit your factory ?
A: Welcome to visit our factory at any time. We will help you accessing the business visa to China . Assist arranging your
schedule in China ,including the factory visiting , products quality checking , car picking up, hotel booking , food service etc.
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