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Single Reduced Cold Rolled Tinplate
Single reduced product is cold rolled to the finished gauge, then continuously annealed and coated with a thin layer of tin.
Double Reduced Cold Rolled Tinplate
Double reduced product is given a partial cold reduction to reach an intermediate gauge, then annealed and given another cold reduction to the final gauge prior to coating with tin. The resulting product is stiffer, harder, and stronger than single reduced, in some cases, allowing customers to utilize lighter gauge steel in their application.
ETP (Electrolytic Tinplate). Low carbon steel coated with tin with a layer between them of steel-tin alloy and destined to be used mainly in the production of metal cans. Tin provides good weldability and electrical conductivity, as well as high corrosion resistance.
Tin Free Steel (TFS) is produced by applying electrolytic chromic acid treatment over steel sheets. This steel product was developed to meet economic requirements, and excels tinplate in paintability, paint adhesion, and economy. It is widely used for making beverage cans and 18-liter cans.
Equal thickness tinplate is a cold-rolled tinplate with the same amount of tin plating on both sides. Tin plated sheet is made by rolling low carbon steel, followed by acid washing, cold rolling, electrolytic cleaning annealing, leveling, edge cutting processing, and then cleaning, electroplating, softening, passivation treatment, and oil coating before cutting into finished tin plated sheet metal.
Differential Thickness Tinplate
Differential thickness tinplate is a cold-rolled electroplated tin plate with different tin plating amounts on both sides. Tin plated sheet is made by rolling low carbon steel, followed by acid washing, cold rolling, electrolytic cleaning annealing, leveling, edge cutting processing, and then cleaning, electroplating, softening, passivation treatment, and oil coating before cutting into finished tin plated sheet metal.
Tin Mill Black Plate (TMBP) steel is manufactured from hot rolled coils by pickling to remove the surface oxide produced during the hot rolling stage, and cold reducing through a cold mill to the desired thickness. TMBP produces a low ductility product that is usually processed further to develop desired end use characteristics.
It is the chemical properties of SPCC that differ from MR type. The Sulphur content is marginally higher as a percentage in SPCC. Using SPCC for general line and MR Type for Food.
ASTM A633 is a high-strength / low alloy grade produced in the normalized condition. It is predominantly used in environments where superior notch toughness is needed at low ambient temperatures. Grades are divided into A, C, D, E.
A high-strength, low-alloy, hot-rolled structural steel plate utilized in structural applications where lighter weight and improved formability is critical. Applications include: truck frames, crane booms, and rail car components. Made to Grades 50, 60, 70 and 80, the grade designating the yield strength.
A709 Carbon Structural Steel Plate
The ASTM A709 is the Standard Specification for Structural Steel for Bridges and encompasses carbon, high-strength low-alloy, and quenched and tempered alloy steels used as structural plates in the construction of bridges. It following five grades of A709; 36, 50, 50W, HPS 50W and HPS 70W.
Cold rolled steel is rolled at room temperature and then rolled again below its recrystallization temperature. This process enables better control over finished product shape, thickness, dimensions, and a more consistent finish.
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