The Knowledge Base · Free to read

The engineer's reference, indexed.

Spec sheets, process articles, standards, and material grades — the working foundation of the Indian steel industry, summarised for engineers, students, and operators. Free to browse. Downloads unlock with an email.

98Spec sheets
I-beam · H-beam · angle · channel · TMT
04Process articles
Hot, cold, TMT manufacturing, foundations
06IS code summaries
Structural, material, reinforcement, design
5Product families
All indexed to IS standards

The shape of the reference.

What's inside Every article, spec, and standard on MillAxis belongs to one of six areas. Each is browsable on its own, cross-linked where relevant, and indexed for search.

Every standard section, specified.

Dimensions, sectional properties, allowable loads, and material grades for every Indian-standard hot-rolled section in five families. All spec sheets conform to IS 808 : 1989 and related standards, cross-linked to applicable IS codes and design references.

How it actually gets made.

Four long-form articles on the processes that turn raw ore into structural steel — written for engineers, with citations.

The Foundation

What is a rolling mill?

The complete reference on rolling mills — history, metallurgy, physics, components, processes, products, and standards. The root article of the knowledge base.

Process · Hot

Hot rolling mills — complete reference.

Thermomechanical principles, reheating, descaling, roughing, intermediate and finishing trains, controlled cooling, mill stand configurations, and product types. With citations.

Process · Cold

Cold rolling mills — types and configurations.

Tandem, reversing, and skin-pass mills. 4-high, 6-high, and cluster configurations. CR coils, tinplate, and foil — the downstream side of the industry.

Process · TMT

The TMT bar manufacturing process.

Billet reheating, quenching, self-tempering, cooling, and bundling. Thermex and Tempcore technologies. TMT grades per IS 1786 : 2008 — from Fe 415 to Fe 600.

The codes that govern Indian steel.

Summaries only Plain-language summaries of the most-referenced Bureau of Indian Standards codes. Always consult the official BIS document for compliance and certification work.

Reference summaries only — not a substitute for the official BIS document. Always consult bis.gov.in for current revisions and certification requirements.