Double Reduced Tinplate Coil is a low-carbon steel sheet material that has been cold-rolled twice and tinned on the surface. It has extremely high strength and excellent formability and is widely used in precision stamping containers such as food packaging, beverage cans, and chemical cans.
Double Reduce Cold Rolled Tinplate Coil Advantages
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Advantages |
Specific performance |
Compared with traditional single cold-rolled tinplate |
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1. Ultra-high strength |
- Tensile strength reaches 550~750 MPa (DR8/DR9 grade) |
Single cold rolling is only 300~450 MPa, and thicker materials are required to achieve the same pressure bearing capacity |
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2. Lightweight and thinning |
- Hardness increased by 30%~50% |
Single cold rolling requires 0.15~0.25 mm, and the weight is higher |
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3. Cost optimization |
- Thickness can be reduced to 0.10~0.15 mm (beverage cans) |
The comprehensive cost of single cold rolling is 10%~20% higher |
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4. Forming accuracy |
- Material savings of 15%~30% |
Single cold rolling tolerance is ±0.02 mm, and the surface uniformity is slightly lower |
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5. Corrosion resistance |
- Thinning reduces raw material costs |
Single cold rolling requires an overall high tin plating amount, which is costly |
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6. Environmental compatibility |
- Reduced transportation/warehousing costs (more finished products per unit volume) |
Traditional chromate passivation faces environmental regulations |
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7. Application scalability |
- Thickness tolerance after secondary cold rolling ±0.01 mm |
Although single cold rolling has high ductility, it lacks strength |
Double cold rolled tinplate coils are used for
Food and Beverage Packaging
Advantages:
Thinning to 0.12 mm can still withstand the pressure of carbonated beverages (DR8 grade).
Tin coating inhibits sulfide corrosion (such as canned meat).
Chemical Containers
Advantages:
Type L-DR steel base + low tin layer (1.1 g/m²) acid and alkali resistant.
High strength reduces barrel reinforcement rib design.
Electronic Components
Advantages:
High hardness (DR9) provides electromagnetic shielding and is not easy to deform.
Surface finish is suitable for precision stamping.
Why choose our double cold-rolled tinplate coils?
✅ Strict quality control: full-process quality inspection to ensure that thickness, tinning amount and hardness meet the standards.
✅ Flexible customization: support differential thickness tinning, chromium-free passivation, special width slitting and other requirements.
✅ Fast delivery: DR8/DR9 level inventory is always available, and delivery is fast within 72 hours.
Double cold-rolled tinplate coils are gradually replacing traditional packaging materials with their advantages of high strength, light weight, and environmental protection. Whether it is the food and beverage, chemical industry, or electronic manufacturing, it can provide more economical and efficient solutions. Consult now and get a unique quote!
About Us
GNEE Group strictly follows domestic and international trade practices, regards reputation as life, and provides all customers with the best quality products and the most complete services. The company has established a complete service system and technical support system, not only providing customers with the best quality products, but also providing complete after-sales service.
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