PSQ BAR ( PUMP SHAFT QUALITY BARS )

 

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

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 Up to 20 RMS Max
Up to 0.5µmm max
Up to 20 RMS Max
Up to 0.5µmm max
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 7 meter (12 upto 22 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