Unless specified otherwise in the order, manufacturers have the discretion to determine the processes used for steel manufacturing and product fabrication. The purchaser may request information regarding the steel manufacturing process if desired.

During manufacturing, it's essential to properly condition the material to eliminate any surface impressions that may cause defects in the final products. The material must be devoid of internal flaws like pipe and flakes, and it should be free from harmful surface defects such as seams, laps, and cracks that exceed machining tolerances.

Material supply must adhere to the standards outlined in IS 8910: 1978. Steel supply, whether in annealed or hardened and tempered condition, will depend on the specific order requirements. Annealed steels must meet the Brinell hardness specifications outlined in the standard when subjected to testing.

TESTS

The subsequent test must be conducted for Steel for Die Blocks.

• Chemical composition

• Ladle analysis

• Hardness

• Dimensional tolerances

• Ultrasonic test

• Additional test

MARKING

Bars exceeding 50 mm in diameter or equivalent cross-section, along with every die block, must be appropriately labeled with the manufacturer's name or trademark, in addition to a cast number or any other identifying mark facilitating traceability of the cast number and grade.

The ISI Mark, as per Indian Standard provisions, must be visibly stamped on each bar, bundle of bars, or test certificate, ensuring compliance with all specifications outlined in the standard. Manufacturers are required to obtain a BIS license from the Bureau of Indian Standards to utilize the standard mark (ISI Mark), which is issued upon a thorough assessment of manufacturing infrastructure, quality control measures, testing capabilities, and production processes.

PROCESS FOR BIS ISI MARK CERTIFICATION