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Various sizes, sections, qualities, and usages of Stainless Steel Piston Bars


Stainless Steel bars are a common raw material used in construction and finishing work. They are widely used across all manner of industries and applications. Some common applications are architectural design, marine equipment, oil/gas pipelines, automotive components, etc.  

Stainless steel rods and bars have a number of valuable characteristics, the most prominent being corrosion resistance. These rods are available in different shapes and formats in the market, which includes round bars, flat bars, square bars, and hexagonal bars. 

Stainless Steel Bars are either hot rolled or cold drawn. Hot-rolled bars have a comparatively rough surface than the drawn bars. These bars are used only for their strength and corrosion resistance property. On the other hand, cold drawn bars are used in aesthetic applications and outdoor fixtures. Cold drawn bars are preferred due to their smooth surface. One such cold drawn bar is a stainless steel piston bar, which is a variant of stainless steel round bars. The general range of stainless steel piston high-quality bars is from 6mm to 100mm radius.

Key Characteristics of Stainless Steel Piston Bars

  1. Since stainless steel is a relatively strong material, stainless steel piston rods are the best choice for structural applications.
  2. Being non-porous is a key factor that makes stainless steel cold drawn bars corrosion-resistant.
  3. Cold rolled piston bars made of stainless steel have a smooth surface, which makes them hygienic, low in maintenance, and non-reactive to many substances. That’s why they are commonly used in kitchen environments.

At Aamor Inox, we offer premium stainless steel piston rod quality bars that are processed in our ultra-modern facilities to make high-grade steel of international standard. To avoid any internal defects in the finished product, we use Ultrasonic Inspection and Eddy Current Testing. The finishing is done by specially designed machines to ensure that the size tolerance and surface roundness are achieved as desired. 

Our cold drawn bars go through various types of heat treatment and are 100% tested through digital ultrasonic flaw detectors to ensure the premium quality. Our cold-rolled stainless steel piston rod quality bars can be used in pump shafts, hydraulic piston shafts, cylinder shafts, boat shafts, bearing sized shafts, and chrome plating quality bars.

Size Range6 mm – 100 mm (1/4 – 4 inch)
Size Tolerancesj6, e6, h6, f6, f7, h7, f8, h8, h9, ½ of A484 etc
Length1 meter upto 8 meters (upto 26 feet)
OvalityHalf of diameter tolerance
Heat TreatmentAnnealed, Solution Annealed, Quenched & Tempered (QT), Hardened & Tempered (HT), Quenched & Double Tempered (QDT)
Straightness0.25mm per meter max (0.0015” per feet)
Surface FinishRa – 0.2 um / 12 RMS max
ChamferingAvailable in 30, 45 & 60 degree thru fully automatic both-end chamfering machine
Crack TestEddy Current Testing thru Circograph (from Dr. Foerster, Germany) and Magnetic Particle Inspection (MPI)
Ultrasonic Test100% tested thru Digital Ultrasonic Flaw Detector, as per ASTM A-388, EN 10308 (class 1 to 4), API 6A/ISO 10423:2003-PSL 3, SEP 1920:1984 (class A, B, C), MIL STD 2154
Length ToleranceAvailable in special cut to length bars in tolerance – 0/+10mm (-0 +0.5 inch)
Grades303, 304L, 310S, 316L, 316Ti, 321, 403, 410, 416, 420, 420B, 420C, 430F, 431, 17-4ph, Duplex F51 (2205)
1.4305, 1.4307, 1.485, 1.404, 1.4571, 1.4541, 1.4006, 1.4005, 1.4021, 14028, 1.4034, 1.4104, 1.4057, 1.4542, 1.4462
PackagingPacking is done using a variety or protective materials & distance rings, and then placed in the strong plywood boxes to ensure safety of material during transportation.

Based out of Delhi/NCR, India, Aamor Inox is a leading manufacturer and supplier of Stainless Steel Piston Rod Bars. These can be customized into different sizes and grades with excellent accuracy according to the requirements of the client at reasonable prices. We export our products to over 60 countries worldwide. Please share your inquiries with us on and we’ll get back to you as soon as possible. If you’re interested in the purchase of any stainless steel metal product, here is our contact number 0120-4564585. You can also request a quotation online by filling the form below. 

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