| Product |
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Round Bars |
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Square Bars |
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Hexagonal Bars |
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Flat Bars |
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| ROUND BARS |
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Execution |
MM |
Inches |
ISO Tolerance |
Cold Drawn and Polish |
2.50 – 75.00 |
1/8” – 3.00” |
h8-h9-h10-h11, ASTMA-484 |
Cold Drawn and Ground |
8.00 – 75.00 |
5/6” – 2.50” |
h8-h9-h10-h11 |
Peeled and Polished |
40.00 – 150.00 |
1.50” – 6.00” |
h11, ASTMA-484 h11-DIN 1013 |
Peeled and Ground |
20.00 – 50.00 |
3/4" – 2.00” |
h9-h10-h11, ASTMA-484 |
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HEXAGONAL BARS |
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Execution |
MM |
Inches |
ISO Tolerance |
Cold Drawn |
4.00 – 40.00 |
3/16” – 1. ½” |
h11 |
Polished and
Ground |
5.00 – 36.00 |
3/16” – 1. ½” |
h11 |
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SQUARE BARS |
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Execution |
MM |
Inches |
ISO Tolerance |
Cold Drawn |
3.50 – 40.00 |
3/16” – 1. ½” |
h11 |
Polished and
Ground |
5.00 – 40.00 |
3/16” – 1. ½” |
h11 |
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| All the above Products are available in Alloy Steel, Stainless Austenitic Steel, Ferritic Steel as well as Martenisitic Steel Grades. |
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DRAWN FLAT BARS
S.S. Flat Bars have over a period gained tremendous importance as it is now the most preferred material in Architectural Structures, Building Frames and Structures, Decorative Hardware and also for various general purposes for shaft keys and special purpose applications.
DH manufactures a wide range of flat bars in variety of sizes, thickness, grades and finish suited to critical applications. These are produced to international specifications, maintaining close dimensional tolerances and required mechanical properties. |
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Technical Specification: |
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SIZES |
GRADES |
FINISH |
6.00 X 4.00
6.10 X 4.10
6.50 X 4.10
6.60 X 4.10
8.00 X 6.00
8.10 X 6.10
10.00 X 6.00
10.00 X 8.00
10.10 X 8.10
12.00 X 5.00
12.00 X 6.00
12.00 X 8.00
12.10 X 8.10
12.00 X 10.00
12.10 X 10.10 |
AISI-410 / 420 / 430 / 304 / 316 / 201 / 204Cu |
Cold drawn |
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HALF ROUND BARS
Most commonly used for Hardware purpose are very popular through out the world. |
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| Technical Specification: |
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SIZES |
GRADES |
12mm – 25mm |
AISI-201, 204Cu,
304, 316
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PSQ – Pump Shaft Quality under produt
DH produces PSQ bars in both Austenitic as well as Martenistic grades.
Austenitic stainless steels are most commonly used. Austenitic stainless steel pump shafting is not magnetic; due to its high nickel and chromium composition, it is extremely resistant to corrosion.
In addition, austenitic stainless steel pump shafting provides excellent mechanical properties. Heat treatment cannot be used to harden austenitic stainless steel pump shafting, although it can be hardened considerably by cold working.
Grades Available in Austenitic Steel:-
AISI-304
AISI-316
17-4PH
Martensitic stainless steels were designed as a type of stainless steel alloy that could be hardened by heat treatment and would be corrosion resistant - although not as corrosion resistant as austenitic or ferritic stainless steels. Martensitic stainless steel pump shafting is highly machinable and is known for being wear resistant.
Grades Available in Martenistic Steel:-
AISI-410
AISI-416
AISI-420
DH produces PSQ bars with superior finish and straightness tolerance by additional process using modern techniques and state-of-art machineries and equipments including special finishing machines to give a smooth and mirror finish surface. Thus wear-free running of the impellers is ensured. DH also provides chamfering at 30 – 45 degrees as per customer requirements.
The bars thus produced undergo stringent quality and inspection test in order to ensure the exact technical requirements are adhered during the production as per O.E.M. specifications.
Thereafter the bars are wrapped in HDPE sheets and then stuffed inside export quality wooden boxes as per the specific requirements of the customer. DH also provides other types of packing like tube packing of each bar, putting 3-4 rubber / plastic ‘O’ rings throughout each bar as per specific requirement from their customers. The details of such packing are precisely explained in our ‘Packing’ segment under this website.
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| Specification: |
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Size Range |
Diameter Tol. |
Ovality |
Straightness |
Length |
Surface |
10mm –
70mm |
h9, h8 |
½ the diameter tolerance |
Upto 0.5mm per 1 meter |
2.5 meters –
6 meters |
Smooth /
Mirror Finish |
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Common application of PSQ Bars:-
The PSQ bars are commonly used at following Industry levels:-
- Pneumatic and Hydraulic Cylinder Shafts
- Textile Machinery Shafts
- Piston Shafts
- Precision Shafting
- Chemical Pump Shafts
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