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	Gratings & Channel Gratings

Municipal Double triangular gullies

Class	Clear opening A*B mm	Over Base C8D mm	Depth Emm	Product ref

C250	450*450	600*600	75	EN-D 076

	Gratings & Channel Gratings

	Gratings & Channel Gratings

Class	Clear opening A*B mm	Over Base C8D mm	Depth Emm	Product ref

C400	420*420	574*505	100	EN-D 318
C400	600*600	750*750	100	EN-D 117
C400	600*600	750*750	100	EN-D 118

Municipal Captive Hinged Gratings:


	Gratings & Channel Gratings

Class	Clear opening A*B mm	Over Base C8D mm	Depth Emm	Product ref

C250	365*310	515*400	75	EN-D 080
C250	450*450	600*535	75	EN-D 075
C250	500*350	650*435	75	EN-D 071


	Gratings & Channel Gratings

Class	Clear opening A*B mm	Over Base C8D mm	Depth Emm	Product ref

D400	420*420	496*563	100	EN-D 319
D400	430*370	580*454	100	EN-D 403
D400	530*350	650*435	100	EN-D 081

NIF Ispat Ltd. has been a supplier of quality castings for over 50 years and has been catering to the needs of its customers and continuously developing its processes to meet their requirements. With three foundries in Eastern India and a team of highly qualified and experienced engineers, NIF strive to combine modern technology with traditional skill, and together with stringent quality control measures, it has developed a commitment towards quality and timely deliveries. As a result, we have established an appreciative clientele in the discerning markets of USA, UK, Canada, Australia, Iceland, Italy, Finland, West Indies, Cyprus, Germany, Middle East etc.

Being one of the pioneers and leading manufacturers and exporters of cast iron products, the company has been making both precision and heavy duty items confirming International standards. Besides, cast iron castings, we also deal in ductile iron products. The main difference between ductile iron and Grey cast iron is the morphology of the graphite particles which take on a nodular or almost spherical form after suitable treatments are made to the melt. They resemble those found in malleable iron, but are more spherical.

Key Properties of Ductile Iron:

As with most grades of cast iron, ductile irons display:
       · Good hardness and good wear resistance
       · Good corrosion resistance
       · Have tensile and yields strengths that vary widely across the various grades.
       · Have compressive strengths that can be utilised more widely (than tensile strengths),           with values tending to be about twice the tensile strength.
       · Impact strengths are better than grey irons, with lower grades approaching values           common for mild steel.
       · Fatigue strengths are approximately 40 to 50% of tensile strengths.
       · Electrical resistivity are significantly lower compared to grey irons
       · Corrosion resistance is similar to grey iron
       · Machinability is dependent on hardness, with ferritic grades machining better.

Similar to grey iron the matrix may be ferritic, pearlitic or martensitic depending factors such as chemistry and other process variables.

We are currently supplying ductile iron products of the following specifications:-
1. EN-124
2. ASTM- A 536 60-40-15 to 120-90-2
3. AS T150- T400

Besides the above, we can also supply ductile products according to the buyer’s drawings and specification.