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Stainless Steel Precision Bars

Piston Rods, Pump Shafts, Boat Shafts, Cylinder Shafts, Precision Machined Parts, Automotive Components & Others.

Round Bars
Condition Cold Drawn, Centreless Ground & Polished Peeled, Centresless Ground & Polished
Grades 303, 304, 304L, 316, 316L, 410, 416, 420, 430F, 431, 630 (17-4 PH) & others
Diameter(Size) 6mm to 25mm (1/4” to 1”) 25mm to 85mm (1” to 3-1/4”)
Surface Finish Upto Rms-12 max.
Upto Ra 0.2 max
3 upto 6 meter
Diameter Tolerance h7, h8, f7, f8
Half of ASTM A484
h7, h8, f7, f8
Half of ASTM A484
Straightness 0.5 mm per meter TIR (0.0015 inch per feet)
Out of Roundness Half of Diameter Tolerence Half of Diameter Tolerence
Length 3 upto 6.5 meter (12 upto 21 feet) 3 upto 7 meter (12 upto 22 feet)
Length Tolerance -0/+50mm or +20mm or +10mm
-0/+2" or 1” or 1/2”
-0/+50mm or +20mm or +10mm
-0/+2" or 1” or 1/2”
Heat Treatment Annealed/Quench & Temepered Annealed/Quench & Temepered

Superior Surface Finish, Diameter Tolerance & Straightness is achieved by additional processes, such as Straightening, Roller Burnishing and Centreless Grinding. Precision Bars are 100% inspected for diameter tolerance, out of roundness, surface roughness & straightness by specially designed instruments & gauges. Ultrasonic Inspection is done to ensure bars are free from internal defects. Bars are packed in strong plywood boxes with each bar protected with distance rings to avoid scratches.


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