Rhino 500D

Controlled Raw Material

In the Controlled level of production, the first stage is the 'Control of Raw Materials'. To ensure that our products are of the highest quality, we use raw materials exclusively imported from renowned companies like TATA Steel, JINDAL Steels, IISCO, and SAIL. Furthermore, the raw materials undergo rigorous quality tests at our state-of-the-art computerized facility.

Controlled Production Process

All products are manufactured at a cutting-edge automated plant, which is the only one of its kind in Nepal. The automation process guarantees uniformity in quality for all products. During production, the products are thoroughly tested through both chemical and physical methods at state-of-the-art, fully computerized labs. These tests provide instant results and allow for faster intervention and compliance with NS and BIS (IS) quality standards.

Controlled Parameters

Ensuring uniformity of physical and chemical parameters is crucial to maintaining the high quality of products. This is achieved by implementing automated systems in the production process as well as conducting physical and chemical tests. The physical and chemical parameters are strictly monitored and adhere to the minimum and maximum standards set by NS: 191, Nepal Bureau of Standards and Metrology Certification Standards, and Indian BIS, IS: 1786: 2008 Certification Standards for Steel Rebar.

Raw Materials

Producing Rhino SOOD Premium High Ductile Rebars require special Fe 5OOD Grade Billets and Blooms which are exclusively imported from world class steel companies like TATA Steel, JINDAL Steel, IISCO and SAIL. The sourcing of high-quality raw materials is followed by stringent quality test to ensure that only the raw materials with right composition go in to production.

High Sulphur Effect, Phosphorous Effect and Carbon Effect

Rhino Fe 5OOD Rebars have lower percentage of Carbon, Sulphur, and Phosphorus. The low carbon content ensures sufficient ductility and superior weldability for all types of welding without preheating. The impurities like Sulphur and phosphorous tend to decrease the strength of steel in extreme weather conditions as hot shortness and cold shortness.

Steel Rolling

Most modern automated Rolling Mill applying latest "TMT Technology" to produce Rhino 5OOD Rebars with consistently high quality in every single Rebar.

Automated Re-heating Furnace

The Automated Gasified Re-heating Furnace not only ensures Uniform Heating but also ensures less fuel consumption.

TMT-Thermo Mechanical Treatment

The Rebars undergo Thermo-Mechanical Treatment in 3 successive stages;

a) Quenching

The hot rolled bar leaving the final mill stand is rapidly quenched by a special water spray system. This hardens the surface of the bar to a depth optimized for each section through formation of martensitic rim while the core remains hot and austenitic.

b) Self-Tempering

When the bar leaves the quenching box, the core remains hot compared to the surface, allowing heat to flow from the core to the surface, causing tempering of the outer martensitic layer in to a structure called 'Tempered Martensite'. The core still remains austenitic at this stage.

c) Atmospheric Cooling

This takes place on the automatic cooling bed where the austenitic core is transformed in to ductile 'Ferrite-Pearlite' Structure. Thus, the final structure consists of an optimum combination of a strong outer layer (tempered martensite) with a ductile core (ferrite -pearlite). This gives Rhino 5OOD its unique combination of higher ductility and strength.

Excellent Bonding with Concrete

Rhino 5OOD Rebars have precise, parallel and uniform rib pattern engraved through computer-controlled notch making machines resulting in excellent bond strength with concrete. The computer-controlled production ensures 100% uniform rib patterns across the length of the Rebar. This is in contrast to ordinary Rebars in which the ribs are cut manually and are non-uniform.

Excellent Bendability

The Special Microstructure of Rhino SOOD gives it excellent bendability (inspite of High Strength). The bar can be bent easily and sharply. Rhino SOOD Rebars can be bent to exact angle unlike ordinary Re bars as desired by the design around mandrels and is much smaller in diameter than what is specified in NS:191 Standards and 15: 1785:2008. This gives a better advantage by facilitating easy bending, making work easier and faster at construction sites.

Superior Weldability

Due to its low Carbon Equivalent, Rhino SOOD has Weldabilty which is superior to other normal Rebars. It can be butt-welded or lap-welded using ordinary rutile coated electrodes of matching strength. In case of manual arc welding no pre-warming or post-welding treatment is necessary.

Greater Earthquake Resistant Properties

Due to high UTS/YS Ratio Rhino SOOD Rebar offers high strength and ductility and thereby excellent Earthquake Resistant property which helps in minimum damage to the structure and hence minimizes casualties.

More Superior Elongation/Ductility

Fe SOOD is produced under controlled manufacturing process and have excellent bendability. It is worth mentioning that the minimum specified elongation for Fe SOOD is 15%. They have lower percentage of carbon, sulphur and phosphorus that ensures high/superior ductility compare to other Fe 500 grade bars.

Greater Resistance to Fire

The quenching and the self-tempering treatment at a temperature of approximately 550° [ results in a consistent and thick layer of tempered Martensitic-ring on the outer surface of the rebar imparting higher capacity to retain strength at elevated temperatures.