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Stockist and Dealers of ISMT LTD.

Hitech Pipes & Tubes is Leading Exporters of ISMT Ismt Mining Tube Tubing

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ISMT Ltd

Tubes : :: OCTG Products : High Collapse Casing :: Hydraulic Line Pipes :: Tubes for Mining :: Powergen Tubes : Multi-Rifled Tubes :: UHS™ Structural Tubes

 

Tubes for Mining
Tubes for the Mining Industry

At ISMT, the mining and drilling industry is a special focus area. We manufacture a very wide array of tubes catering to virtually every application in this industry. Typical end use of our tubes include:

  • • Drill Rods
  • • Drill Castings
  • • Drill Steel (Hex as well as round OD)
  • • DTH Hammer Casings & Pistons
  • • Core Drill Barrels
  • • Thin Walled Tubes (eg : TBW, TNW Outer and Inner)

Toughdrill™ tubes embody over 20 years of experience in the manufacture of application specific tubes for the mining and drilling industry. These tubes are manufactured to the highest industry standards and tested rigorously. As a result, we can virtually guarantee that our tubes will outperform and outlast any other tube in the industry. Tubes for Mining Tubes for the Mining Industry


We produce our steel through the electric arc furnace route. The raw material mix is chosen and prepared carefully to ensure the highest standards of cleanliness. All heats are ladle refined and vacuum degassed before continuous casting and rolling. Right through the production process, we maintain full traceability of the material and a record of the tightly controlled process parameters. This ultra-clean steel forms the starting point for the manufacture of our tubes.

The manufacture of precision seamless tubes is as much a matter of equipment as it is of experience and process technology. At ISMT, believe in investing in the finest of equipment. For making seamless tubes, we operate three Assel Mills, one PQF Mill, Pilger Mills and Cold Draw Benches. Our tube-mills are imported from Shloemann Mannesman in Germany and incorporate the best in technology. With regards to experience, our team is amongst the most technically qualified anywhere in the world – the tubes that we produce for the mining industry reflects this experience.

TOTAL PROCESS CONTROL

At ISMT, we believe the only way to guarantee quality is to stand responsible for the entire production process. For that reason, we produce all our steel in-house. We bring to bear over 20 years of experience in manufacturing high-grade Bearing steel to all our manufacturing processes and to all our steel products (we are among few select manufacturers globally to be approved by SKF & FAG for the supply of Bearing steels).

“BEST IN CLASS” TOLERANCESTubes for Mining Tubes for the Mining Industry

ISMT offers the tightest tolerances in the industry. We are able to do so because of the proprietary processes that we have developed. For example, to ensure tight control over eccentricity (+/- 5%) we provide very high cross sectional reductions during cold-drawing process. Similarly, we use special surface treatment processes that we have developed to ensure good dimensional control and surface cleanliness after heat treatment. In the same vein, to ensure a good surface finish, all our cold-draw tooling is either made from special materials such as Tungsten Carbide or is TiN coated. For applications that demand a superior surface finish, we also offer Bright Annealed tubes.

1 IN 6000 STRAIGHTNESS

We understand the importance of tube straightness to the mining industry. Therefore, we subject each and every tube to a stringent 5 point TIR straightness check and correction procedure with special attention to tube end straightness. By doing so, we guarantee a straightness of 1 in 6000 or better.

LOW RESIDUAL HOOP STRESS

For Drill Rod tubes, we have developed a unique process that allows us to guarantee very low residual hoop stress of 65 MPa (max). Further information on this special product (used for very demanding drilling conditions) is available upon request.

STANDARD TOUGHDRILL™ TUBES** 
**Toughdrill™ tubes are manufactured to the following standard specifications, grades, sizes and tolerances. In addition to standard tubes, we also manufacture tubes to customer specific requirements.
 
STANDARD SPECIFICATIONS
ASTM/ASMESwedishBSJISAPI
DCDMASIS-74130-IE4019G 34655D
 
STANDARD GRADES
ISMT GradeMechanical Property     
Yield Strength
min.(m pa.)
Ultimate
Strength
Tensile
min.map.
Elongation%
min.(Gauge
Length 2")
CMinMoCrV
Toughdrill 550550620150.40.7 - - -
Toughdrill 620620725150.421.5 - - -
Toughdrill N80550690150.21.5 - - -
Toughdrill 710710820150.41.6 - - -
Toughdrill 4130650750150.30.50.20.95 -
Toughdrill 4142740860150.430.90.20.95 -
* Special Grades with higher mechanical properties of yield strenght upto 850 and ultimate Tensile Strenght upto 950 Map can be given as par specific requirmentsTubes for Mining Tubes for the Mining Industry
 
STANDARD SIZE
Wireline drill rod tubes
DesignationOuter Dia(mm)Inner Dial(mm)Outer Dial(inch)Inner Dial(inch)
 MinMaxMinMaxMinMaxMinMax
A-wireline44.4544.7034.8235.071.751.761.3711.381
B-wireline55.5555.8045.9546.202.1872.1971.8091.819
N-wireline69.8570.1060.0760.322.752.762.3652.375
M-wireline88.9089.2877.6278.003.503.5153.0563.071
P-wireline114.30114.68102.79103.174.504.5154.0474.062
S-wireline139.70140.08125.50125.505.5005.5154.9264.941

DesignationOuter Dia(mm)Inner Dial(mm)Outer Dial(inch)Inner Dial(inch)
 MinMaxMinMaxMinMaxMinMax
RW36.5036.6330.2330.481.4371.4421.191.20
EW46.0246.2738.1038.501.8121.8221.501.51
AW57.1557.4048.4248.672.2502.2601.9061.916
BW73.0373.2860.3360.582.8752.8852.3752.385
NW88.9089.2876.2076.303.503.5153.0003.015
HW114.30114.68101.22101.604.504.5153.9854.00
PW139.70140.08126.87127.255.505.5154.9955.01
 
STANDARD TOLERANCES
 Outside Dia ToleranceInside Dia Tolerance
I
N
C
H
E
S
1 < OD < 1.575+0.0051,-0ID < 2.953+0,-0.010
1.575 < OD < 3.150+0.010,-02.953 < ID < 5.512+0,-0.015
3.15 < OD < 5.512+0.015,-0ID < 5.512+0,-0.018
M
M
25.40 < OD < 40+0.13,-0ID < 75+0,-0.25
40 < OD < 80+0.25,-075 < ID < 140+0,-0.38
80 < OD < 140+0.38,-0ID < 0.40+0,-0.45
 
STANDARD LENGTHS
Standard ToughDrill™ tubes are supplied in unit lengths of 3000 mm (+5, -0 mm). However, we can also supply tubes in any length as per your requirements.
 
STANDARD PACKING
Each tube is oiled, internally as well as externally, and then packed into hexagonal bundles. This ensures that the tubes are corrosion protected and that they retain their straightness during transport. Upon request we can provide end caps and also wrap the bundles in LDPE sheets.
 
TESTING AND INSPECTION
All our tubes are Eddy Current tested for surface defects and sub-surface cracks. Test certificates as per EN 10204.3.1 B verifying grade, chemistry and mechanical properties are supplied with all products.
 
Customer Specific Toughdrill™ Tubes
In addition to the standard products listed above, ISMT manufacturers ToughDrill™ tubes to customer specifications with respect to sizes, grades, heat treatments, lengths, tolerances and packaging.

These customized tubes are available in the following size ranges:
 
Tubes for Mining Tubes for the Mining Industry  Tubes for Mining Tubes for the Mining Industry
 

 

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Contact With Us
Email : hitechtubes@outlook.com
(Vinnod B Mehta) : +91-98195 80099

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