Overview of Tinplate
Tinplate(SPTE) is a common name for electroplated tin steel sheets, which refers to cold-rolled low-carbon steel sheets or strips coated with commercial pure tin on both sides. Tin mainly acts to prevent corrosion and rust. It combines the strength and formability of steel with the corrosion resistance, solderability and aesthetic appearance of tin in a material with corrosion resistance, non-toxicity, high strength and good ductility.Tin-plate packaging has a wide range of coverage in the packaging industry because of its good sealing, preservation, light-proof, ruggedness and unique metal decoration charm. Because of its strong antioxidant, diverse styles and exquisite printing, tinplate packaging container is popular with customers, and widely used in food packaging, pharmaceutical packaging, commodity packaging, instrument packaging, industrial packaging and so on.
Tinplate Temper Grade
Black Plate | Box Annealing | Continuous Annealing |
Single Reduce | T-1, T-2, T-2.5, T-3 | T-1.5, T-2.5, T-3, T-3.5, T-4, T-5 |
Double Reduce | DR-7M, DR-8, DR-8M, DR-9, DR-9M, DR-10 |
Tin Plate Surface
Finish | Surface Roughness Alm Ra | Features & Applications |
Bright | 0.25 | Bright finish for general use |
Stone | 0.40 | Surface finish with stone marks that make printing and can-making scratches less consplcuous. |
Super Stone | 0.60 | Surface finish with heavy stone marks. |
Matte | 1.00 | Dull finish mainly used for making crowns and DI cans (unmelted finish or tinplate) |
Silver (Satin) | —— | Rough dull finish mainly used for making artistic cans (tinplate only, melted finish) |
Tinplate Products Special Requirement
Slitting tinplate Coil: width 2 ~ 599mm available after slitting with precise tolerance control.
Coated and prepainted tinplate: according to customers’ color or logo design.
The temper/hardness comparison in different standard
Standard | GB/T 2520-2008 | JIS G3303:2008 | ASTM A623M-06a | DIN EN 10202:2001 | ISO 11949:1995 | GB/T 2520-2000 | |
Temper | Single reduced | T-1 | T-1 | T-1 (T49) | TS230 | TH50+SE | TH50+SE |
T1.5 | —– | —– | —– | —– | —– | ||
T-2 | T-2 | T-2 (T53) | TS245 | TH52+SE | TH52+SE | ||
T-2.5 | T-2.5 | —– | TS260 | TH55+SE | TH55+SE | ||
T-3 | T-3 | T-3 (T57) | TS275 | TH57+SE | TH57+SE | ||
T-3.5 | —– | —– | TS290 | —– | —– | ||
T-4 | T-4 | T-4 (T61) | TH415 | TH61+SE | TH61+SE | ||
T-5 | T-5 | T-5 (T65) | TH435 | TH65+SE | TH65+SE | ||
Double reduced | DR-7M | —– | DR-7.5 | TH520 | —– | —– | |
DR-8 | DR-8 | DR-8 | TH550 | TH550+SE | TH550+SE | ||
DR-8M | —– | DR-8.5 | TH580 | TH580+SE | TH580+SE | ||
DR-9 | DR-9 | DR-9 | TH620 | TH620+SE | TH620+SE | ||
DR-9M | DR-9M | DR-9.5 | —– | TH660+SE | TH660+SE | ||
DR-10 | DR-10 | —– | —– | TH690+SE | TH690+SE |
Tin plate Features
Excellent Corrosion Resistance: By selecting a proper coating weight, appropriate corrosion resistance is obtained against container contents.
Excellent Paintability & Printability: Printing is beautifully finished using various lacquers and inks.
Excellent Solderability & Weldability: Tin plate is widely used for making various types of cans by soldering or welding.
Excellent Formability & Strength: By selecting a proper temper grade, appropriate formability is obtained for various applications as well as the required strength after forming.
Beautiful Appearance: tinplate is characterized by its beautiful metallic luster. Products with various kinds of surface roughness are produced by selecting the surface finish of the substrate steel sheet.
Application
Food Can, Beverage Can, Pressure Can, Chemical Can, Decorated Can, Home Appliance, Stationary, Battery steel, Paint Can, Cosmetic Field, Pharmaceuticals Industry, Other packing fields etc.