Guangdong Gonmo New Material Technology Development Co., Ltd.
Cold-rolled Automotive Steel
A specialized steel manufacturer. We only make steel grades with qualities that are fine-tuned to make applications stronger, lighter, safer, easier to produce, more long-lasting, fuel efficient and sustainable – all depending on what’s highest on the users’ list of priorities.
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Cold Rolled Automotive Compartment Steel
Model
| Grade | Tensile Test a&b | ||
|
Yield Strength MPa |
Tensile Strength MPa |
Elongation after Fracture, A50mm(%) |
|
| LG350CXb | ≥300 | ≥350 | ≥10 |
| LG550CXb | ≥500 | ≥550 | ≥6 |
| LG700CXb | ≥650 | ≥700 | ≥5 |
| LG1000CXb | ≥950 | ≥1000 | ≥4 |
| LG700NQc | ≥600 | ≥700 | ≥5 |
| LG800NQc | ≥700 | ≥800 | ≥5 |
Description
LY Steel 's cold-rolled high-strength steel for carriage covers products in different strength level ranging from 350MPa-950Mpa. These products are widely used in various industries like shipping container, lateral plate of truck carriage, van carriage, high-strength welded pipe.
Cold-rolled Hot Forming Steel
Model
Table 1 Physical property before hot stamping
| Grade | Tensile Test a&b | ||
|
Yield Strength,MPa |
Tensile Strength,MPa |
Elongation after Fracture, A50mm (%) |
|
| LG1500 | 280~450 | ≥450 | ≥20 |
| LG1800 | 300~500 | 320~550 | ≥17 |
| LG2000 | 320~550 | 500~850 | ≥15 |
| LG1500PLUS | 330~480 | ≥500 | ≥20 |
Table 2 Physical property after hot stamping
| Grade | Tensile Test a&b | ||||
|
Yield Strength, MPa |
Tensile Strength, MPa |
Elongation after Fracture, A50mm (%) |
Hardness | ||
| HV10 | HRC | ||||
| LG1500 | 950~1250 | 1300~1700 | ≥5 | ≥400 | ≥40 |
| LG1800 | 1000~1600 | ≥1600 | ≥5 | ≥520 | ≥52 |
| LG2000 | 1100~1800 | ≥1800 | ≥5 | ≥520 | ≥52 |
| LG1500PLUS | 950~1250 | 1300~1700 | ≥5 | ≥400 | ≥40 |
Description
With unique composition design, heating the sheet to austenitizing temperature, fast cooling in the hot stamping mold, the final tensile strength of the parts can reach 1300-2000mpa,Hot forming steel can meet the requirements of automobile collision safety performance as well as weight and emission reduction. There are a series of hot forming products in LY Steel, including LG1500, LG1500 Plus , LG1800, LG2000, which are widely used in industries such as automobile and police equipment.
High Strength IF Steel
Model
|
Steel Grades |
Category |
Application |
| LG170P1、HC180Y |
Drawing or deep drawing |
This range of product is applied to the manufacturing of complex auto structural parts, reinforcing part and exposed panel |
| LG210P1、HC220Y |
Common use or drawing |
|
| LG250P1、HC260Y |
Structural or common use |
Description
The cold rolled IFHS steel can be grouped into exposed panel, structural part and reinforcing part according to its application. The cold rolled IF produced in LY Steel with good deep drawing and strength as well as good weldability and coating performance, is widely applied to the manufacturing of complex auto structural parts , reinforcing part and exposed panel
High Strength Low Alloy Carbon Structural Steel
Model
|
Steel Grades |
Features |
Application |
| ST37-2G |
Carbon structural steel |
Apply to various structural parts and Reinforcement parts. |
| LG240ZK | ||
| LG280VK | ||
| SPFC440 | ||
| HSLA300-B |
High strength low-alloy steel |
|
| HSLA340-B | ||
| HSLA380-B | ||
| HSLA420-B |
Description
Cold rolled high strength low alloy steel for automotive structural application and carbon structural steel shall be grouped into structural and reinforcement part . The cold rolled carbon structural steel and high strength low-alloy steel produced by LY Steel with good drawing property and weldability are widely used in automotive manufacturing industry.
Ultra Low Carbon and IF Steel
Model
|
Grade |
Category |
Application |
| DC01、SPCC | CQ |
The product features in good ductility, apply to parts by simple forming, bending and welding. |
| DC03、SPCD | DQ |
The product features in fine formability, apply to parts by drawing (complex deformation). |
| DC04、SPCE | DDQ |
The product has excellent deep-drawing performance and good ductility, apply to parts by deep-drawing (complex deformation). |
| DC05、SPCF | EDDQ |
The product has better ductility than deep-drawing steel, apply to parts by deep-drawing(complex deformation). |
| DC06、SPCG | SEDDQ |
The product has better ductility than EDDQ, the deep drawing performance and drawability are superior to EDDQ. |
Description
The application of cold rolled ultra low carbon and IF steel are mainly for CQ, DQ, DDQ, EDDQ and SEDDQ. The cold rolled ultra low carbon and IF steel for drawing produced by LY Steel with good drawing property, weldability and coating performance are widely used in complex and high quality automotive parts manufacturing, such as external and internal covering parts.
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