Suntec Enterprises

Suntec Enterprises

Sector 49, Faridabad, Haryana
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Difference b/w Steel Shots & Cut Wire Shots

Cut Wire Steel Shots Cast Steel Shots
Finest quality raw material in exact compositions is used, which is free from any material defects or holes and porosity. Low - grade raw material is used that make cause holes, porosity & shrinkage and make the shot fracture into small particles.
Grain size is stabilized due to its drawing process. Grain size is unstabilized.
Being made out of same wire, all cut wire shots are identical. Product is a mix of various spherical sizes.
Uniform hardness Large hardness variation
Micro-structure is only Tempered Martensite In Microstructure, carbides are always there.
Low inventory required. More inventory, more money and more storage required for same job.
Cut Wire Shots only wear down. Cast Steel Shots break into dust.
Less consumption. Consumption is high than Cut Wire Shots.
Consistent superior performance Poor consistency as a result of fast size deterioration.
Operational life is 3 – 4 times more than Cast Steel Shots Operational life is less.
High purchase price. Lower purchase price.
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Vickers Rockwell Hardness and Conversion Table

Vickers Hardness :

Vickers Hardness is a measure of the hardness of a material or cut wire steel shot, which is calculated from the size of an impression produced under load through a pyramid-shaped diamond indenter. Developed in the 1920s by engineers at Vickers, Ltd. (UK), the diamond pyramid hardness test is used to permit the establishment of a continuous scale of comparable numbers that reflect accurately the comprehensive range of hardness found in steels.

The indenter used in the Vickers test is a square-based pyramid the opposite sides of which meet at the apex at an angle of 136°. These diamonds are pressed into the surface of the material at loads that are available in range of up to approximately 120 kilograms-force, and the size of the impression (usually no more than 0.5 mm) is calculated with the aid of a calibrated microscope.

Vickers test is reliable method for measuring the hardness of metals and is also used on ceramic materials.

Rockwell Hardness :

The Rockwell Hardness test is a hardness measurement tool, which is based on the net increase in depth of impression as a load is implemented. The hardness numbers have no units and are generally given in the scales of R, L, M, E and K. The higher the number in each of the scales, the harder will be the material. The method was devised by Mr. Stanley P. Rockwel, who devised the test and original machines.

The technique is used to measure the hardness by pressing an indentor into the surface of steel with a specific load and then measuring how far the indentor can penetrate it. While there are several Rockwell tests, the most widely used is Rockwell B. Rockwell C, which are used on hard materials.

In the case the material is highly thin, lighter loads must be used. Resulting in Rockwell scales, like - 30T, 1ST, Rockwell 15-N and 30-N. There are conversion charts that provide for conversion from one method of hardness to another, but it is important to note that these conversion charts cannot exactly convert from one to another.

For Conversion Table Please Click Below Link:
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The Advantage Of Using Steel Cut Wire Shot Against Casted Steel Shot

Cost Benefit analysis : Below an example is been taken, trying to explain the benefits on using Cut Wire shot :-

For Example :-

Cast steel shot :   Per M/c usage of shots is 2000kg

Cut wire shot:    Per M/c usage shall come down to 1000kg

PLUS there are other Benefits :-

  • Machinery maintenance is low - Break-down are less, due to low dust generation
  • Better results - finishing improves
  • Reduce inventory space


On giving figure to above mentioned factors, we found that there is a saving of 25 -35% overall (depending on product to product).
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Vivek Gupta (CEO)
Suntec Enterprises
A-27, Dabua Extension, Dabua Pali Road, NIT
Sector 49, Faridabad - 121001, Haryana, India
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