GNEE Steel steel for automotive industry
Cold-rolled steel has become popular for automotive manufacturing due to its numerous benefits. Compared to hot-rolled steel, cold-rolled steel undergoes a process that results in a smoother surface and greater dimensional accuracy, making it an ideal choice for precision manufacturing. Cold-rolled steel grades also offer high strength, excellent formability, and enhanced durability, making it an attractive option for the automotive industry.
Cold rolled automotive steel

steel used in automobile industry Description
Thickness Range: 0.3mm - 3mm | Width Range: 750mm - 1870mm | Grades: Cq, Dq, Ddq, Eddq, If, Hif, Hss, Bake Hardening
| Classification | EN | JIS | ASTM | BIS | JFS |
| CQ |
DC01 |
SPCC | CSA,B&C | CR1 |
- |
| DQ | DC03 | SPCD | DSA&B | CR2 | JSC270C |
| DDQ | DC04 | SPCE | - | CR3 | JSC270D |
| EDDQ | DC05 | SPCF | D0S | CR4 | JSC270E |
| IF | DC06 | SPCG | EDDS | CR5 | JSC270F |
| High Strength -IF Based | HC180Y | - | SHS-GR35 | CR5 _IF340 | JSC340P |
| HC220Y | - | - | - | - | |
| HC260Y | - | SHS-GR44 | CR5_ IF390 | JSC390P | |
| - | - | - | CR5_ IF440 | JSC440P | |
| Bake Hardened | HC180B | - | BHS-GR26 | - | - |
| HC220B | - | BHS-GR35 | - | JSC340H | |
| HC260B | - | - | - | - | |
| HC300B | - | BHS-GR44 | - | - | |
| High Strength Micro Aloyed Steel | HC260LA | - | - | - | - |
| HC300LA | - | - | - | - | |
| HC340LA | - | HSLAS-GR50 | - | - | |
| HC380LA | - | HSLAS-GR55 | - | - | |
| HC420LA | - | HSLAS-GR60 | - | - | |
| C-Mn High Strength Steel | - | SPFC340 | SS GR48 | CR1_340 | JSC340W |
| - | SPFC390 | - | CR1 _390 | JSC390W | |
| - | SPFC440 | SS GR65 | CR1_440 | JSC440W | |
| - | SPFC490 | SS GR60 | - | - | |
| Rephosphorized | HC180P | - | - | - | |
| HC220P | - | - | - | ||
| HC260P | - | - | - | ||
| - | - | - | JSC440R | ||
| - | - | - | - | ||
| Dual Phase | HCT500X | - | - | JSC590R | |
| HCT600X | - | - | JSC590Y | ||
| HCT780X | - | - | JSC780Y | ||
| - | - | - | JSC980Y | ||
| HCT980X | - | - | JSC980YL |
Types of Cold Rolled Steel Grades
There are various types of cold-rolled steel grades used in the automotive industry. These grades are classified based on their properties and characteristics, such as strength, ductility, and corrosion resistance. Here are some common cold-rolled steel grades used in the automotive industry:
Deep Drawing Quality (DDQ): This cold-rolled steel grade is ideal for deep drawing applications, such as the manufacturing of automotive parts like fenders, hoods, and doors. DDQ steel has excellent formability, making it easy to shape without cracking or tearing.
Extra Deep Drawing Quality (EDDQ): EDDQ steel is similar to DDQ steel but has even better formability. It is commonly used to manufacture complex automotive parts like fuel tanks, oil pans, and transmission cases.
Bake Hardenable (BH): BH steel is designed to undergo bake hardening, which increases its strength and hardness. BH steel is commonly used to manufacture automotive parts like door frames and seat structures.
High Strength Low Alloy (HSLA): HSLA steel is a high-strength, low-alloy steel that offers excellent mechanical properties, including high strength, toughness, and ductility. It is commonly used to manufacture automotive parts like suspension components, chassis, and wheels.
Automotive Steel Coil Factory


Advantages of Using Cold Rolled Steel Grades in Automotive Manufacturing
High Strength: Cold rolled steel grades offer high strength and toughness, making them ideal for manufacturing high-stress automotive components like suspension systems and engine parts.
Excellent Formability: Cold rolled steel grades have excellent formability, which allows manufacturers to produce complex automotive parts with precision and accuracy. This ensures the parts fit together perfectly, reducing the need for additional machining or welding.
Corrosion Resistance: Cold-rolled steel grades are more corrosion-resistant than hot-rolled steel, making them ideal for automotive parts exposed to harsh weather conditions or corrosive materials.
Reduced Weight: Cold-rolled steel grades are thinner and lighter than hot-rolled steel, which can help reduce the weight of automobiles. This, in turn, can improve fuel efficiency and reduce emissions.
Cost-Effective: Cold rolled steel grades are cost-effective compared to other materials used in automotive manufacturing, like aluminium or carbon fibre. This makes it an attractive option for automakers who want to reduce production costs without sacrificing quality.
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