Hard Chrome Bars

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Hard Chrome Bars Specification

Shape
Round Bar

Type
Induction Hardened / Non-Induction Hardened

Standard
DIN 2391, ISO F7, ASTM A276

Steel Type
Carbon Steel or Stainless Steel

Tolerance
H8/H9

Application
Hydraulic and Pneumatic Cylinder Piston Rods

Thickness
Chrome thickness 20 30 microns

Material
Alloy Steel / Carbon Steel / Stainless Steel

Technics
Cold Drawn & Ground

Surface Treatment
Hard Chrome Plated

Dimensions
Diameter 6mm to 100mm, Length up to 6 meters

Grade
CK45, SAE1045, ST52, 4140, 316, EN8, EN19, 42CrMo4

Surface Roughness
Ra 0.2 m

Delivery Condition
Hardened and Tempered / Annealed

Yield Strength
355 MPa

Hardness
850 1150 HV (Vickers)

Core Hardness
HB 220-260

Corrosion Resistance
High, due to chrome plating

Straightness
0.2 mm/1000 mm

End Finishing
Chamfered or as required

Packing
Anti-rust oil coated, packed in poly sleeves or wooden cases

Hard Chrome Bars Trade Information

Supply Ability
100 Per Week

Delivery Time
1 Week

Main Domestic Market
All India

About Hard Chrome Bars

Buy from us dimensionally accurate Hard Chrome Bars that can be used in a wide range of industrial and constructional applications due to high tensile and compressive strength. It is machined with high precision and accuracy which result in high structural accuracy and smoother surface finish. It is provided with a shiny anti-corrosive coating that helps to prevent damages due to rust and corrosion. Customers can get Hard Chrome Bars as per their demands with an assurance of fast and safe delivery.

Premium Surface Quality

Our Hard Chrome Bars are treated with advanced grinding and chrome plating processes to achieve an ultra-smooth finish of Ra 0.2 m. This superior surface quality significantly reduces friction during operation, extending seal life and enhancing reliability in hydraulic and pneumatic applications.

Comprehensive Range of Grades and Dimensions

Choose from a wide array of steel grades, including CK45, ST52, 4140, and stainless options, in diameters from 6 mm to 100 mm and lengths up to 6 meters. The bars are available in both induction hardened and non-induction hardened types, tailored to diverse cylinder and machine requirements.

Corrosion Resistance and Durability

Our bars are chrome plated with 20-30 micron layers for exceptional resistance to corrosion and wear, even in harsh environments. The packing and anti-rust oil application ensures each bar remains in optimal condition during transport and storage, upholding stringent export standards.

FAQ's of Hard Chrome Bars:

Q: How are Hard Chrome Bars manufactured for high strength and surface quality?

A: Hard Chrome Bars are produced using cold drawn and ground techniques, followed by induction hardening (if required) and finishing with a hard chrome plating. This ensures a yield strength of at least 355 MPa, high surface hardness (850-1150 HV), and surface roughness as low as Ra 0.2 m.

Q: What are the main uses of these chrome plated bars?

A: These bars are primarily used as piston rods for hydraulic and pneumatic cylinders, thanks to their excellent surface finish, wear resistance, and corrosion protection. They are also suitable for guide rods, shafts, and machine components where durability and precision are crucial.

Q: When should I choose induction hardened over non-induction hardened bars?

A: Induction hardened bars are recommended when your application requires enhanced wear resistance and surface hardness, such as in heavy-duty hydraulic systems. Non-induction hardened bars are suitable for applications with moderate stress or where core flexibility is desired.

Q: Where are your Hard Chrome Bars sourced or exported from?

A: We are a supplier, exporter, and trader based in India, delivering our high-quality Hard Chrome Bars globally. All bars meet international standards (DIN, ASTM, ISO) and are exported with secure anti-rust packaging.

Q: What is the process for achieving high corrosion resistance in these bars?

A: High corrosion resistance is achieved by applying a uniform chrome plating with a thickness between 20 and 30 microns over the finished bar, followed by anti-rust oil coating and protective packing in poly sleeves or wooden cases to prevent any surface damage during transit.

Q: How does the surface roughness of Ra 0.2 m benefit hydraulic cylinders?

A: A low surface roughness minimizes friction between the piston rod and seals, reducing wear, improving sealing efficiency, and enhancing the lifespan of hydraulic and pneumatic cylinders.

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