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The 180BH Bake Hardening Steel High Anti Dent Auto Outer Panel is used in automotive applications, complies with the national standard GB/T 20564.1-2017 and uses an ultra-low carbon formula (C 0.0015~0.0040%). Through the age-hardening effect of trace amounts of dissolved carbon and nitrogen atoms, it achieves the core characteristics of "easy stamping and strong baking hardening"—a yield strength of 180-240MPa in the delivery state. After baking at 170℃ for 20 minutes, the yield strength can be increased by 30-60MPa, significantly enhancing dent resistance and perfectly meeting the core requirements of automotive exterior panels for "easy processing, impact resistance, and high aesthetics."
| Parameter Category | Specific Specifications | Implementation Standard | Core Value (Adapted for Automobile Outer Panels) |
| Product Grade | 180BH Bake Hardening Steel High Anti Dent Auto Outer Panel(Special for Automobile Outer Panels) | GB/T 20564.1-2017 | Special bake-hardening steel for automobiles, suitable for multi-scenario needs of outer panels |
| Thickness Range | 0.6-2.0mm (Regular Automobile Outer Panel Specification), Customizable 0.5-3.0mm | National Standard + Automobile Industry Standard | Thin specification adapts to vehicle lightweight, tolerance ±0.03mm, high dimensional accuracy |
| Width Range | 800-1500mm, Support cutting on demand | National Standard + Automobile Industry Standard | Adapt to the mold size of automobile outer panels, reduce raw material loss |
| Mechanical Properties | Yield Strength: 180-240MPa, Tensile Strength: ≥300MPa, Elongation: ≥32%, BH₂ Value: 30-60MPa | GB/T 228.1, GB/T 24174-2022 | Easy to form, high dent resistance, strength increases after baking, suitable for outer panel needs |
| Chemical Composition | C: 0.0015~0.0040%, Si: ≤0.05%, Mn: 0.15~0.30%, P: 0.01~0.05%, S: ≤0.015% | GB/T 20564.1-2017 | Ultra-low carbon formula ensures formability and aging stability |
| Surface Grade | FB (Higher Grade), FC (High Grade), FD (Ultra-High Grade) | Automobile Industry Standard | Meet different appearance needs, FD grade can be directly painted |
| Delivery Status | Cold Rolling + Continuous Annealing + Skin Pass | Automobile Industry Standard | Eliminate yield platform, improve surface quality and processing performance |
| Foreign Trade Guarantee | Complete customs declaration documents (Certificate of Origin, MTC, Fumigation Certificate, etc.) | Customs Specifications | Suitable for global customs clearance needs of auto parts |
180BH Bake Hardening Steel High Anti Dent Auto Outer Panel is widely used in automotive exterior body panels where both surface quality and strength are critical.
Engine Hood Outer Panel: Needs to withstand high-temperature baking and requires extremely high flatness; 180BH effectively prevents the hood from collapsing.
Door Inner and Outer Panels: Doors are crucial for side-impact safety and are among the most frequently used components; 180BH Bake Hardening Steel High Anti Dent Auto Outer Panel's high dent resistance is fully demonstrated here.
Fenders: With complex shapes and large drawing depths, 180BH's excellent formability ensures high production yield.
Trunk Lid Outer Panel: Also requires a balance between aesthetics and surface hardness.
Q: How effective is the baking hardening of 180BH Bake Hardening Steel High Anti Dent Auto Outer Panel? Can it meet the dent resistance requirements of automotive exterior panels?
A: Absolutely! After 2% pre-deformation and baking at 170℃ for 20 minutes, the BH₂ value of 180BH can reach 30-60MPa, significantly increasing yield strength and enhancing dent resistance. It effectively resists deformation from daily collisions, fully meeting the stringent dent resistance requirements of automotive exterior panels. It is widely used in the production of various automotive exterior body panels.
Q: Can the surface quality of 180BH meet the requirements for sand-free coating of automotive exterior panels?
A: Yes! Our 180BH can provide an FD-grade ultra-precision surface with a surface roughness Ra≤0.8μm, free of scratches and indentations. It can be directly sprayed or electroplated without additional sanding. After coating, the color is uniform and the adhesion is strong, significantly improving the appearance and production efficiency of automotive exterior panels.
Q: What automotive industry-related qualifications are available for 180BH Bake Hardening Steel High Anti Dent Auto Outer Panels purchased for export?
A: We can provide a complete set of qualification documents, including GB/T 20564.1-2017 standard certification, automotive parts supplier qualifications, material specifications (MTC), inspection reports, certificates of origin, etc. We also support providing third-party testing reports to ensure compliance with the quality requirements of overseas automakers and smooth customs clearance and acceptance.
Q: What are the stamping performance characteristics of 180BH Bake Hardening Steel High Anti Dent Auto Outer Panel? Can it be used for complex automotive exterior panel shapes?
A: 180BH uses an ultra-low carbon formula with an elongation of ≥32%, excellent r-value and n-value, and outstanding stamping performance. It can easily achieve deep drawing and complex curved surface forming without cracking or springback, making it suitable for complex exterior panel shapes such as automotive hoods and fenders. The stamping yield rate can reach over 98%.
Q: What are the production cycle and delivery time for bulk purchases of 180BH automotive exterior panels?
A: Standard sizes (0.6-2.0mm) are available in stock. Sample making takes 3-5 days; small batch customization takes 7-10 days, and large batch customization takes 10-15 days; foreign trade orders are given priority in production scheduling, with goods prepared and loaded into containers within 24 hours. Delivery to Europe and America takes 10-20 days, and delivery to Southeast Asia takes 5-10 days, ensuring that customers' production schedules are not delayed.
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No. 696, Binhai 12th RoadBinhai Industrial Park, Wenzhou Economic & Technological Development ZoneWenzhou, Zhejiang Province, P.R.China
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