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Product Overview
Hollow Bars are high-strength tubular metal bars manufactured with a precision hollow bore, offering significant weight reduction without compromising structural integrity. Their excellent dimensional accuracy, superior machinability, and reduced material wastage make them an ideal choice for manufacturing hydraulic cylinders, machine components, bearings, bushings, rollers, valve bodies, shafts, and precision engineering parts.
At Moksh Tubes & Fittings LLP, we are a trusted manufacturer, supplier, and exporter of premium-quality Hollow Bars in India. Our extensive product range includes Stainless Steel Hollow Bars, Carbon Steel Hollow Bars, Alloy Steel Hollow Bars, Duplex & Super Duplex Hollow Bars, Nickel Alloy Hollow Bars, Titanium Hollow Bars, Aluminium Hollow Bars, and Copper Alloy Hollow Bars manufactured in accordance with ASTM, ASME, DIN, EN, ISO, and JIS standards.
Our hollow bars are supplied to industries across India, UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bangladesh, Europe, and other international markets, ensuring reliable performance in demanding industrial applications.
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Specifications
| Specification | Details |
|---|---|
| Material | Stainless Steel, Carbon Steel, Alloy Steel, Duplex & Super Duplex, Nickel Alloys, Titanium, Copper Alloys |
| Manufacturing | Seamless & Welded Hollow Bars |
| Standards | ASTM A511, ASTM A312, ASTM A790, EN 10294, DIN 17458 |
| Outer Diameter | 25 mm to 450 mm |
| Inner Diameter | 12 mm to 300 mm |
| Wall Thickness | 5 mm to 100 mm |
| Length | 3 m, 6 m & Cut-to-Length |
| Surface Finish | Mill Finish, Ground, Polished, Pickled & Passivated |
| Forms | Round, Square, Rectangular & Oval Hollow Bars |
| Supply Condition | Annealed, Solution Annealed, Cold Drawn, Hot Finished |
Hollow Bars Size & Weight Chart
Hollow Section Pipe Weight Chart – Square Sections
| Size (mm) | Outside Width (mm) | 2.0 mmWt (kg/m) | 3.0 mmWt (kg/m) | 4.0 mmWt (kg/m) | 5.0 mmWt (kg/m) | 6.0 mmWt (kg/m) | 8.0 mmWt (kg/m) |
|---|---|---|---|---|---|---|---|
| 20×20 | 20 | 1.10 | 1.60 | 2.10 | 2.60 | 3.10 | 4.10 |
| 30×30 | 30 | 1.66 | 2.42 | 3.18 | 3.94 | 4.70 | 6.23 |
| 40×40 | 40 | 2.22 | 3.26 | 4.31 | 5.36 | 6.39 | 8.46 |
| 50×50 | 50 | 2.83 | 4.18 | 5.53 | 6.88 | 8.21 | 10.88 |
| 60×60 | 60 | 3.38 | 4.98 | 6.59 | 8.19 | 9.78 | 13.00 |
| 80×80 | 80 | 4.51 | 6.60 | 8.72 | 10.75 | 12.78 | 17.26 |
| 100×100 | 100 | 5.70 | 8.43 | 11.17 | 13.90 | 16.61 | 22.05 |
| 150×150 | 150 | 8.60 | 12.74 | 16.88 | 21.02 | 25.16 | 33.44 |
| 200×200 | 200 | 11.50 | 17.04 | 22.59 | 28.13 | 33.67 | 44.74 |
Note: We also provide detailed weight charts for Rectangular and Oval Sections in our downloadable datasheet.
Grades Available
Stainless Steel
304, 304L, 316, 316L, 310, 321, 347
Carbon Steel
ASTM A105, ASTM A350 LF2, IS 2062
Alloy Steel
4130, 4140, EN19, EN24
Duplex & Super Duplex
Duplex 2205, Super Duplex S32750, S32760
Nickel Alloys
Inconel, Monel, Hastelloy
Titanium & Copper Alloys
Titanium Gr 2/5, Cu-Ni 70/30, 90/10, Brass, Bronze
Types of Hollow Bars
Seamless Hollow Bars
Welded Hollow Bars
Round Hollow Bars
Square Hollow Bars
Rectangular Hollow Bars
Oval Hollow Bars
Extruded Hollow Bars
Oil-Filled Hollow Bars
Applications & Uses
Mechanical Engineering
Hydraulic Cylinders, Bushings, Bearings, Rollers, Machine Components.
Oil & Gas Industry
Valve Bodies, Pump Components, High-Pressure Equipment, Offshore Structures.
Construction & Infrastructure
Structural Supports, Columns, Frameworks, Heavy Fabrication.
Marine & Offshore
Propeller Shafts, Marine Equipment, Offshore Platforms, Desalination Plants.
Automotive & Aerospace
Steering Components, Hydraulic Systems, Landing Gear Components, Precision Machined Parts.
Food, Pharmaceutical & Chemical
Processing Equipment, Hygienic Components, Chemical Processing Systems, Stainless Fabrication.
Advantages of Hollow Bars
Excellent machinability for precision engineering
High strength-to-weight ratio
Reduced material wastage during machining
Outstanding dimensional accuracy
Excellent corrosion resistance in stainless grades
Available in seamless and welded construction
Cost-effective compared to solid bars
Suitable for heavy-duty industrial applications
Mechanical Properties
Mechanical properties vary depending on the material grade and manufacturing process. Hollow Bars are manufactured to provide excellent tensile strength, yield strength, impact resistance, and dimensional stability for precision engineering applications.
| Property | Description |
|---|---|
| Tensile Strength | Varies by material grade; designed to provide high strength for machining and engineering applications. |
| Yield Strength | Excellent yield strength to withstand heavy loads and mechanical stress. |
| Impact Resistance | High toughness for reliable performance under dynamic and shock loading conditions. |
| Hardness | Available in different hardness levels depending on the material grade and heat treatment. |
| Machinability | Excellent machinability, reducing machining time, tooling costs, and material waste. |
| Dimensional Stability | Precision manufactured with tight tolerances for accurate machining and consistent performance. |
Why Choose Moksh Tubes & Fittings LLP?
Extensive inventory of stainless steel, alloy steel, duplex, nickel alloy hollow bars.
Custom sizes, lengths, wall thicknesses, and machining options available.
Manufactured to ASTM, ASME, DIN, EN, ISO, and JIS standards.
Competitive pricing with ready stock for fast delivery.
Trusted exporter serving international markets worldwide.
Experienced technical support for industrial and project requirements.
Frequently Asked Questions (FAQ)
What is a Hollow Bar?
A Hollow Bar is a tubular metal bar with a hollow center designed to reduce weight while maintaining excellent mechanical strength for machining and structural applications.
What materials are available?
We supply stainless steel, carbon steel, alloy steel, duplex stainless steel, super duplex, nickel alloys, titanium, aluminium, brass, bronze, and copper nickel hollow bars.
Are custom sizes available?
Yes. Custom outer diameters, inner diameters, wall thicknesses, and cut-to-length sizes are available according to customer specifications.
What industries use Hollow Bars?
Hollow Bars are widely used in oil & gas, petrochemical, marine, construction, automotive, aerospace, heavy engineering, power generation, food processing, and pharmaceutical industries.
Do you provide Mill Test Certificates?
Yes. EN 10204 3.1 / 3.2 Mill Test Certificates are supplied with every order upon request.
Request a Quote
Looking for premium-quality Hollow Bars for machining, hydraulic systems, structural fabrication, or industrial applications? Contact Moksh Tubes & Fittings LLP today for competitive pricing, custom sizes, fast delivery, and global export support.
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