TATA TMBP (Tin Mill Black Plate) MR with T4 temper is an extra-hard cold-rolled steel base plate used for tinplating, offering the highest level of strength and hardness, specifically designed for non-forming or minimal forming applications where maximum rigidity and crush resistance are critical.

Key Features:

• Tensile strength ranging from 440–520 MPa and yield strength of 330–400 MPa, providing the highest strength grade for exceptional structural integrity and stacking performance

• MR (Manufacturers’ Regular) grade ensures consistent chemical composition and mechanical properties for reliable processing into high-performance tinplate

• T4 temper indicates the hardest temper condition, achieved through maximum cold reduction, ideal for rigid components and high-pressure containers

• Smooth, uniform surface ensures excellent adhesion of tin coating and compatibility with precision manufacturing lines

• Designed as a substrate for electrolytic or hot-dip tin plating to produce durable tinplate for demanding industrial and food packaging applications

Applications:
Aerosol containers, closure shells, can ends, bottle caps, and structural components in packaging