Global professional supplier of automotive steel raw materials

We specialize in automotive steel, offering a full range of products including cold-rolled, hot-rolled, galvanized, and high-strength steel, serving automotive OEMs and parts suppliers worldwide. Our products are exported to over 30 countries and regions in Asia, the Middle East, Europe, the Americas, and Africa.

Core advantages

* IATF 16949 International Automotive Industry Quality System Certification

* Full-process batch traceability ensures consistent quality

* Professional sea freight packaging provides up to 6 months of rust protection

* One-stop service: technical consultation + customized processing + on-time delivery

"Quality drives trust, service connects the world"

*IATF 16949

03. Cold-rolled automotive steel

Material properties

With its smooth surface and high dimensional accuracy, as well as good plasticity, it is easy to perform complex stamping and forming processes, making it an important basic material for automotive lightweighting.

Main applications

It is widely used in automotive body panels (such as doors, hoods, and trunk lids) and interior parts (such as dashboard frames) where surface quality and formability requirements are stringent.

models and specifications

04. Hot-rolled pickled automotive steel

Core properties of materials

With high strength, high toughness, and relatively low cost, it is suitable for manufacturing key components that bear heavy loads and is a basic material for the automotive industry.

Key application scenarios

It is mainly used in the longitudinal beams, cross beams, rear axle housing and chassis structural components of the vehicle frame to ensure high strength and rigid support of the vehicle body.

05. Galvanized automotive steel

Core Features

Applying a zinc coating to the surface of steel plates significantly improves corrosion resistance and prevents the car body from rusting. It is mainly divided into hot-dip galvanizing (GI) and alloy galvanizing (GA).

GA

Application

It is mainly used on parts that are susceptible to corrosion, such as the outer panels of the vehicle body, door sills, and engine hood, to ensure the vehicle's durability in complex environments.

Industrial Value: Galvanizing is a key technology for improving the corrosion resistance and service life of automotive steel, and it is widely used in modern automobile manufacturing.

Product advantages: Compared with GI sheet, GA sheet has superior coating adhesion and corrosion resistance, making it the preferred material for high-end automobile manufacturing.

06. High-strength automotive steel (HSS)

Material properties

With a yield strength between 210-550MPa, by adding alloying elements and optimizing the process, the weight of the car can be reduced while ensuring strength, thus reducing fuel consumption.

It is widely used in key structural components such as vehicle body frames, crossbeams, longitudinal beams, and suspension system components to ensure vehicle body rigidity and safety.

Examples of automotive body frame structure applications

07. Advanced high-strength automotive steel (AHSS)

Material properties

This includes dual-phase steel (DP) and transformation-induced plasticity steel (TRIP). Through special alloy design and heat treatment, it combines extremely high strength with good plasticity, resolving the contradiction between strength and plasticity.

TRIP

Core Applications

It is mainly used in key components such as A-pillars, B-pillars, door anti-collision beams, and bumper reinforcement beams, and is a core material for ensuring the passive safety of automobiles.

Actual picture of car B-pillar reinforcement component

Hot-formed steel grades and specifications (22MnB5)

22MnB5

Yield strength

≥1000MPa

Tensile strength

≥1500MPa

Elongation

≥6%

A-pillars, B-pillars, door sills and protective beams.

22MnB5 is the preferred material for manufacturing core safety structural components of automobiles. Its ultra-high strength can effectively absorb collision energy, providing the highest level of safety protection for vehicles, and it is widely used in key load-bearing parts of the vehicle body.

22MnB5

09. Application Areas - Automotive Body Structure

(Outer cover)

Material Selection: Cold-rolled Steel, Galvanized Steel (DC04, GI/GA) | Focus on Surface Quality and Formability.

DC04, GI/GA

(Structural components/reinforcing components)

Materials: High-strength steel, advanced high-strength steel (HSLA, DP, TRIP) | Balancing strength and lightweight

HSLA, DP, TRIP

(Safety parts)

Materials: Advanced high-strength steel, hot-formed steel (TRIP, MS, 22MnB5) | Ultimate strength and energy absorption

TRIP, MS, 22MnB5

Schematic diagram of automobile body structure and steel application

ОApplication areas - Chassis and engine

Automotive chassis system

The longitudinal beams, cross beams, and suspension system components of the automobile frame primarily use hot-rolled steel and high-strength steel (SPHC, QSTE series) to ensure load-bearing capacity and durability.

Engine system

Key components such as crankshafts, connecting rods, and cylinder blocks use special alloy steel, requiring high strength, high temperature resistance, and fatigue resistance.

Meets the requirements of harsh operating conditions·

10. Quality Certification and Standards

Quality Management System Certification

• ISO 9001 Quality Management System

• ISO 9001

• IATF 16949 Automotive Industry Standard

• IATF 16949

Product Standards

ASTM (USA)

JIS (Japan)

DIN (Germany)

GB (China)

We strictly adhere to advanced international standards to ensure that every batch of products meets our customers' highest quality requirements.

Full range of original product quality certificates from steel mills (MTC)

11. Export and logistics capabilities

Export capacity

Changheng Xinde Group has established long-term strategic partnerships with major Chinese steel mills such as Shanghai Baosteel, Ansteel Group, Shougang Group, Valin Lianyuan Steel, Handan Iron and Steel Group, Baotou Steel, Maanshan Iron and Steel Group, Benxi Steel Group, Liuzhou Steel Group, and Hebei Iron and Steel Group. With an annual export volume of 5 million tons in hot-rolled, cold-rolled, galvanized, high-strength, and heat-treated products, it can quickly respond to large-volume orders from global customers.

Logistics services

We provide professional export packaging, warehousing management, and global logistics solutions to ensure your products are delivered safely and on time to destinations worldwide. We support sea, land, rail, and air freight; and offer flexible transaction terms such as EXW, FOB, and CIF/CIP.

Modern intelligent steel storage center

Our products are exported to more than 30 countries and regions in Asia,

the Middle East, Europe, the Americas,and Africa.

China steel, Made in China