Gemini TMT Bars, manufactured by Kiran Infra Ispat Ltd. (Gemini Steel Limited), are high-performance thermo-mechanically treated rebars that are ISO 9001:2008 certified and are produced in the first fully automatic German-tech rolling mill in Rajasthan. With its high strength, ductility, fire resistance, and weldability, the TMT of Gemini, particularly the CRS Fe 550 and Fe 500D grades, is engineered to demand seismic-resilient and durable construction.
Gemini TMT Bars Top 10 FAQs
1. What is Gemini TMT?
Gemini TMT bars are high-strength reinforcement bars manufactured by the Tempcore quenching process. They have a hard, tempered outer shell and ductile ferrite-pearlite core, with additional ribs to achieve high bond strength with concrete, providing fire resistance up to 600°C, good weldability, and bendability.
2. What is the history of Gemini Steel?
Gemini Steel (Kiran Infra Ispat Ltd.) is a company of Gemini Group in Jaipur under the guidance of Mr. R.S. Gemini. It is the first fully automatic and German-technology rolling mill in Rajasthan and has been in operation since at least 2011. It is leading in the region due to continuous modernization and automation.
3. Who is the proprietor of Gemini Steel?
Under the banner of Gemini Group, the company is headed by Mr. R.S. Gemini as the managing director. Kiran Infra Ispat Ltd. is a Jaipur-based company that manages the production at its plant located in Vishwakarma Industrial Area. The company is supported by a technically skilled workforce and quality-certified systems.
4. What are the products of Gemini?
Gemini Steel produces:
- CRS Fe 550 TMT Bars (Corrosion-Resistant Steel)
- CRS Fe 500D TMT Bars
- Smart Rib Bars
- Advanced ribbing precision-rolled Tempcore TMT bars
These are supplied in various diameters (8-25 mm) and in mill-length (12 m) units to ensure quality.
5. How much do Gemini TMT Bars cost?
Gemini has issued a Recommended Consumer Price (RCP) list as of March 1, 2022, in Rajasthan:
- 8 mm: 454 per piece
- 10mm: 697
- 12mm: 988
- 16mm: 1756
- 20mm: 2745
- 25mm: 4280
Prices are quoted as tax inclusive, on a cash basis, with BIS tolerances. Rates are van-swapped—subject to change without notice.
6. Where are Gemini TMT Bars available?
Gemini TMT Bars are sold by the authorized dealers in Rajasthan. They have a complete state-wide distribution network that guarantees access through certified stockyards. Trade inquiries should be made to their Jaipur office or through the inquiry form on the website.
7. What grades are available?
Gemini has two grades that are BIS certified:
- CRS Fe 550—Corrosion-resistant rebar of high strength
- CRS Fe 500D—Seismic high-ductility grade
They are both IS 1786:2008 and are manufactured with clean and controlled raw materials and modern processing methods.
8. What are the mechanical and physical properties?
Gemini TMT Bars have the following key features:
- Tempcore microstructure: martensitic outer shell, ductile core
- Fire resistance: Up to 600°C with no structural integrity loss
- Additional ribbing to enhance concrete bonding
- Low carbon content results in high ductility and weldability.
- Higher strength and elongation balance at lower steel use
These attributes help in the reduction of joints and wastage on site.
9. What are the sizes?
Gemini offers TMT bars with standard diameters of 8 mm to 25 mm and 12 m long. Bars are also packaged in weight-marshaled bundles of precise weight to enable easy handling and project management.
10. What is Gemini Steel's contact information?
You may contact them through:
- Phone: +91 7073081982 or +91 9414061704
- Landline: +(91‑141) 2460998 / 4048565
- Email: sales@kiraninfraispat.com or info@kiraninfraispat.com
- Address: Gemini Steel Limited, F-947, 948, 949, E-292, Road No. 14, Vishwakarma Industrial Area, Jaipur - 302013, Rajasthan
- Online Enquiry: Trade and dealer registration is available on the Gemini website.

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