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TRIP780 Steel Sheets Hot Rolled And Cold Rolled
- John

TRIP780 steel sheets, known for their high strength and durability, are becoming a top choice for modern structural designs. In this article, we’ll explore the unique properties of TRIP780 steel, its applications in various industries, and how SteelPro Group can help you harness its benefits for your next project.
What Is TRIP780 Steel?
TRIP780 steel is a high-strength, transformation-induced plasticity (TRIP) steel known for its excellent balance of strength and ductility. It features high tensile strength (≥780 MPa), good elongation, and superior energy absorption properties. TRIP780 is primarily used in the automotive industry for structural components like crash boxes and reinforcements, offering improved safety without compromising weight.
TRIP780 Steel Key Characteristics
High Strength
It offers superior tensile strength (≥ 780 MPa), making it well-suited for uses that demand a significant load-bearing ability.
Excellent Ductility
Due to the TRIP effect, the material retains a high degree of elongation, improving its resistance to fractures.
Transformation-Induced Plasticity
This unique property allows TRIP780 steel to undergo a phase transformation (from austenite to martensite) during deformation, which enhances strength without sacrificing ductility.
Good Fatigue Resistance
Suitable for dynamic or cyclic loading conditions, TRIP780 performs well in applications subjected to repeated stress.
Cost-effectiveness
While it is an advanced steel, TRIP780 is more cost-effective than other AHSS grades like Dual-Phase (DP) or Complex-Phase (CP) steels, offering a balance between performance and cost.
TRIP780 Steel Sheets Dimensions and Standards
SteelPro Group provides high-quality TRIP780 steel sheets to automotive OEMs and suppliers worldwide. Our product size range is as follows:
- Thickness: 0.7 mm (0.028 in) to 3.0 mm (0.118 in)
- Width: 900 mm (35.4 in) to 2,000 mm (78.7 in)
- Length: 2,000 mm (78.7 in) to 6,000 mm (236.2 in)
Our TRIP780 steel sheets comply with the following quality standards:
- ISO/TS16949:2009
- ISO9001:2008
- VDA 239-100
- SAE J2340
We offer customized size options and consistent quality. We are dedicated to offering you the finest steel solutions. Share your requirements with us for a quote today!
TRIP780 Steel Chemical Composition
Element | Composition (%) |
Carbon (C) | ≤ 0.25 |
Iron (Fe) | ≥ 95.75, as balance |
Manganese (Mn) | ≤ 2.00 |
Silicon (Si) | ≤ 1.00 |
Phosphorus (P) | ≤ 0.025 |
Sulfur (S) | ≤ 0.015 |
Chromium (Cr) | ≤ 0.30 |
Nickel (Ni) | ≤ 0.50 |
Vanadium (V) | ≤ 0.10 |
TRIP780 Steel Mechanical Properties
Property | Value (Metric) | Value (Imperial) |
Yield Strength (Rp0.2) | 420-580 MPa | 60.9-84.2 ksi |
Tensile Strength (Rm) | 780-880 MPa | 113.0-127.6 ksi |
Elongation (A80) | ≥ 21 % | ≥ 21 % |
N-value | 0.15 | 0.15 |
Hot Rolled | Cold Rolled TRIP780 Sheets: Manufacturing Process
At SteelPro Group, we prioritize precision and quality in every stage of production. Our TRIP780 steel sheets are available in both hot rolled and cold rolled variants, each offering distinct advantages for various applications.
Hot Rolled TRIP780 Steel
Hot rolling is the first step in making TRIP780 steel sheets. The steel is heated and passed through rollers to reach the right thickness. This process allows for easier shaping and resizing, making hot rolled TRIP780 steel ideal for large-scale applications and heavy-duty components.
Process
The steel is heated beyond its recrystallization point (usually above 900°C or 1650°F), which increases its flexibility. It is then passed through rollers to reduce thickness, followed by cooling. This process does not involve any further cold working, so the material retains a slightly rough surface.
Advantages
- More Affordable: Hot rolling is usually cheaper than cold rolling because it uses less energy and involves fewer steps.
- Larger Dimensions: Ideal for thicker and larger sheets, making it suitable for large automotive and structural components.
- Strength: The high temperature of the process results in a uniform grain structure that improves the strength of the material.
Cold Rolled TRIP780 Steel
Cold rolling involves processing steel at room temperature, which is ideal for producing high-precision, smooth-surfaced sheets. While this process is more energy-intensive than hot rolling, it provides a range of benefits that make cold-rolled TRIP780 steel the choice for more specialized applications.
Process
Cold rolling occurs after the steel has been hot-rolled and cooled. The steel is further processed at room temperature through a series of rollers that shape it to the desired thickness. Unlike hot rolling, the material does not experience the same level of heat treatment, resulting in a smoother finish and better dimensional accuracy.
Advantages
- Higher Strength: Cold-rolled steel typically exhibits superior strength and dimensional tolerance, which makes it ideal for precision-engineered components.
- Surface Finish: The smoother surface finish is ideal for applications requiring minimal surface roughness.
- Better Ductility: Cold rolling also enhances the ductility of the steel, making it suitable for forming into complex shapes.
TRIP780 Steel Applications
Automotive Industry
- Used in structural components such as crash boxes, reinforcements, and safety parts.
- Great for lightweight vehicle designs because of its strong strength-to-weight ratio.
Construction
- Utilized in modular construction for load-bearing structures, offering high strength and resilience.
Transportation
- Applied in heavy-duty vehicle parts like chassis and body panels to enhance durability.
Mechanical Engineering
- Used in the manufacture of machine components that require high tensile strength and impact resistance.
Elevating Construction with TRIP780 Steel Sheets
At SteelPro Group, we provide high-quality steel products, including TRIP780 steel sheets, designed for durability and performance. We offer precise processing services such as cutting, welding, and surface treatment to meet your project needs. Our skilled team ensures prompt delivery and great client assistance, making us your dependable partner in construction solutions.