Star Steels Co.

Half Round Bars Most commonly used for Hardware purposes are very popular throughout the world. Technical Specification: SIZES: 12mm -25mm GRADES : AISI-201, 204Cu,304, 316 PSQ Pump Shaft Quality under the product 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-410 AISI-416 AISI-420 DH produces PSQ bars with superior finish and straightness tolerance by an additional process using modern techniques and state-of-art machinery and types of equipment 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 have 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 requirements from their customers. The details of such packing are precisely explained in our Packing segment under this website. Specification: Size Range : 10mm-70mm Diameter Tol. : h9, h8 Ovality: 1/2 the diameter tolerance Straightness: Upto 0.5mm per 1 meter Length : 2.5 meters - 6 meters Surface : Smooth / Mirror Finish The 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

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

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 a 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. Technical Specification: 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 GRADES: AISI-410 / 420 /430 / 304 / 316 / 201 / 204Cu FINISH: Cold drawn

Execution MM Inches ISO Tolerance Cold Drawn 4.00 -40.00 3/16"- 1.1/2" h11 Polished and Ground 5.00 -36.00 3/16"-1.1/2" h11 All the above Products are available in Alloy Steel, Stainless Austenitic Steel, Ferritic Steel as well as Martenisitic Steel Grades.

Execution MM Inches ISO Tolerance Cold Drawn 3.50-40.00 3/16"-1. 1/2" h11 Polished and Ground 5.00-40.00 3/16" -1.1/2" h11