Core values of AISCO 750+ Plus TMT Bars

Superior Savings

AISCO 750 rebars reduce the need for rebar by mass-saving using AISCO 750 vs. equivalent 500 MPa filaments.

Unprecedented Technology

AISCO’s high-quality reinforcement bars are produced at the most advanced, fully automatic, high-speed rolling mill through the “Quenching and Tempering Process” with international technology.

Unmatched Quality

AISCO 750 rebars are made from virgin iron ore. Their superior chemistry makes them "Greater Strength and Guaranteed Ductility.

AISCO750 is a new range of high-strength reinforcing steels with normal ductility for column fitments.

Key benefits include:

• Improved sustainability credentials

• Lower transport, handling, and fixing costs;

• Reduced safety risk

With 33% less mass than 500N standard fitments, it is more sustainable, delivers savings in fixing costs, and reduces transport and crane costs. The reduced mass of the AISCO750 also results in lighter manual handling with fewer back injuries and other on-site risks.

Produced in equivalent force capacity diameters to make the direct substitution of AISCO750 fitments for 500N fitments easy with no redesign requirements.

Using less raw material and energy in production, AISCO750 is more sustainable than standard 500 MPa fitments. The use of AISCO750 has the potential to significantly improve the sustainability credentials of construction projects.

AISCO750 is a new grade of high-strength reinforcing steel with normal ductility, weldable, and developed for column fitments.

Key features

• AISCO750 comes in equivalent force capacity diameters that allow it to be directly substitutable for standard 500N fitments.

• It is readily identifiable by a rolled-in mark showing the bar to be 750N material.

Grade and ductility

Figure 1 (below), from a typical length of AISCO750, demonstrates the exceptional stress/strain properties of AISCO750 compared with conventional 500 MPa reinforcing steels. The graph shows that AISCO750 comfortably meets the requirements of the BIS Standard IS1786 750 MPa, Ductility Class Normal reinforcing bar.

In the sample tested, the yield strength of around 800 MPa is above the required minimum 750 MPa point, and with the strain in this sample around the 9–10% mark, it confirms that AISCO750 comfortably exceeds the 4% mark requirement of the BIS Standard.

Directly substitutable

As AISCO750 is directly substitutable for 500N Standard Fitments, a standard 500N fitment can be substituted with the equivalent AISCO750 fitment without re-engineering, incurring no redesign costs.

More sustainable

AISCO750 has 33% less mass than its equivalent 500 MPa fitment, so specifying AISCO750 means specifying a more sustainable option.

Less raw material and energy to produce

Because AISCO750 uses less raw material and energy to produce, it is more sustainable than the alternative 500N Standard Fitments. This reduction in raw material and energy use in production leads to a potential embodied energy and greenhouse warming saving of approximately 33%.

Table 2 shows that the stronger AISCO750 fitments are 33% lighter than equivalent 500 MPa standard fitments.

Table 2. Mass saving uising AISCO 750 vs equivalent 500 MPa filments

Reduce, Reuse, Recycle

Specifying AISCO750 fitments delivers even greater sustainability outcomes than simply specifying steel. It is widely recognised that specifying a steel product improves sustainability in construction as it is considered the most recycled building material in the world.

Lower transport, handling, and fixing costs

The weight savings shown in Table 2 deliver potential savings for activities that are priced based on weight.

• Lower transport and handling costs: up to 50% more fitments that can be transported and craned onto a site in each load, leading to significant savings in transport and handling costs.

• Reduced site storage requirements: the physical on-site storage space taken up by AISCO750 fitments is significantly smaller than 500N Standard Fitments.

• Lower fixing costs: where steel fixing is charged by the tonne, the 33% weight saving over 500N standard fitments results in considerable savings in fixing costs.

Transport and crane energy savings

The lighter product offers opportunities for more energy savings from transport and cranage. Fifty percent more fitments can be transported and craned onto a site in each load.

Reduced safety risk

The reduced mass of AISCO750 results in lighter manual handling with fewer back injuries and other on-site risks.

The AISCO750 range

AISCO750 is available in diameters that have the equivalent force capacity to standard 500 MPa bars, making the designer’s job easy. For example:

• The standard N10 500 MPa (10 mm diameter) bar has a force capacity of 39.3 kN. The equivalent AISCO750 is 8.2mm diameter, giving it exactly the same force capacity of 39.3 kN.

• For a column fitment, an N10 can be directly substituted with an 8.2mm AISCO750, designated A8.2.

Similarly, there are equivalent force capacity diameter AISCO750s for N12 and N16 500 MPa steels, specifically A9.8 and A13.

The Substitution Table (Table 1, opposite) can be used by designers to specify the AISCO750 product to replace the standard 500 MPa fitment.

Table 1. Substitute Table