Home > Square Bars
Square Bars are solid metal bars with a uniform square cross-section, widely used in machining, fabrication, structural reinforcement, forging stock, automotive, aerospace, marine, and general engineering applications. Their flat sides and rigid geometry make them ideal for precision components, frames, brackets, tools, and load-bearing parts.
Square Bars are available in multiple materials including stainless steel, carbon steel, alloy steel, tool steel, duplex, nickel alloys, copper alloys, and titanium — each offering unique mechanical and corrosion-resistant properties.
Compared to round bars, square bars offer:
Square Bars are essential across industries that need flat surface stability + high strength.
Square Bars are produced using multiple methods depending on application, finish, and metal grade:
Manufactured by hot rolling billets under high temperature.
Advantages:
Cold-drawn through dies for improved tolerances and straightness.
Benefits:
Produced through forging ingots or billets into square shapes.
Why choose forged square bars:
With over a decade of experience and multi-material capability — from Stainless Steel to Carbon, Alloy, Duplex, and Nickel Alloys with Product Pipes, Tubes, Bars we serve the world’s most demanding industries with trust, traceability, and timely delivery.
| Feature | Square Bars | Round Bars |
|---|---|---|
| Machining Stability | Higher due to flat sides | Lower |
| Surface Contact Area | Large | Small |
| Structural Use | Excellent for frames | Limited |
| Tooling & Dies | Ideal | Not preferred |
| Rotational Uses | Not suitable | Best for shafts |
👉 Conclusion:
Square Bars = best for fabrication, frames, tooling, machining, and structural components.
We offer:
Standards Covered:
Titanium: ASTM B348
These specifications ensure mechanical performance for fabrication, machining, forging, aerospace, marine, and offshore applications.
Stainless Steel Square Bars offer excellent corrosion resistance, stability, and machinability, making them ideal for high-precision components and structural applications.
Grades Offered:
304 • 304L • 316 • 316L • 321 • 347 • 410 • 420 • 431
Why SS Square Bars:
Applications:
Machining • Structural frames • Marine fittings • Fabrication work
Carbon Steel Square Bars are the most economical choice for fabrication, structural reinforcement, automotive parts, and forging.
Advantages:
Applications:
Frames • Brackets • Forging billets • Automotive links
Alloy Steel Square Bars provide superior toughness, fatigue strength, and wear resistance, making them suitable for heavy-duty and high-stress environments.
Applications:
Tooling components • Machine parts • Industrial shafts • Defence components
Tool Steel Square Bars are engineered for moulds, dies, cutting tools, shear blades, and high-wear applications.
Why Tool Steel:
Used for:
Punches • Die blocks • Shear blades • Forming tools
Superior in chloride resistance and mechanical strength.
Applications:
Marine & offshore components • Pump parts • High-corrosion fabrication
Nickel Alloy Square Bars are used where extreme temperature and chemical resistance is critical.
Applications:
Aerospace parts • Chemical processing • High-strength fasteners
Copper-based square bars offer excellent electrical conductivity, thermal performance, and aesthetic finish.
Applications:
Electrical fittings • Heat exchanger components • Decorative hardware
Titanium Square Bars provide high strength-to-weight ratio and corrosion resistance suitable for advanced engineering.
Applications:
Aerospace • Marine • Defence • Medical components
| Standard Code | Material Scope | Common Grades Supplied |
|---|---|---|
| ASTM A276 | SS Hot Rolled / Bright Bars | 304, 316, 321, 410 |
| ASTM A479 | SS Bars for high-temp service | 304L, 316L |
| ASTM A36 / A105 | Carbon Steel Bars | A36, C45, A105 |
| ASTM A434 | Alloy Steel Bars | 4140, 4340 |
| ASTM B160 / B164 / B166 | Nickel Bars | Monel, Inconel, Hastelloy |
| ASTM B98 / B111 / B133 | Copper Alloy Bars | Cu-Ni, Brass, Bronze |
| ASTM B348 | Titanium Bars | Grade 2, Grade 5 |
Hot Rolled Square Bars (HR)
Bright Square Bars (Cold Drawn)
Forged Square Bars
Polished Square Bars
Custom Cut Lengths
Machining & Fabrication
Structural Use
Forging Stock
Marine & Offshore
Aerospace & Defence
Talk to our experts for technical support, pricing, and bulk orders.
Square Bar prices depend on material, size, finish (HR/Bright/Forged/Polished), and industry requirement.
| Material / Type | Size Range | Approx. Price (₹/kg) | Approx. Price (USD/kg) |
|---|---|---|---|
| Stainless Steel Square Bars | 6–150 mm | ₹200 – ₹600 | $2.5 – $7.0 |
| Carbon Steel (EN8 / EN9 / C45 / A36) | 10–200 mm | ₹65 – ₹130 | $0.80 – $1.60 |
| Alloy Steel (EN19 / EN24 / 4140 / 4340) | 10–150 mm | ₹110 – ₹250 | $1.4 – $3.0 |
| Tool Steel (D2 / H13 / O1 / M2) | 16–200 mm | ₹250 – ₹700 | $3.2 – $8.5 |
| Duplex & Super Duplex | 6–120 mm | ₹450 – ₹1000 | $5.5 – $12.5 |
| Nickel Alloy Square Bars | 6–80 mm | ₹1400 – ₹3600 | $17 – $45 |
| Copper / Brass / Bronze | 6–120 mm | ₹500 – ₹1000 | $6 – $12 |
| Titanium Square Bars | 6–80 mm | ₹1600 – ₹3000 | $19 – $36 |
Bulk orders and project requirements receive special CIF/FOB pricing.
| Application Segment | Suitable Materials | Used For |
|---|---|---|
| Machining & Fabrication | SS, CS, Alloy | CNC parts, machine frames, tooling |
| Structural Use | CS, SS, Duplex | Frames, supports, industrial structures |
| Forging Stock | Alloy, Tool Steel, CS | Dies, rings, tool blocks |
| Marine & Offshore | SS 316/316L, Duplex, Bronze | Corrosion-resistant fittings |
| Aerospace & Defence | Nickel Alloys, Titanium | High-strength precision components |
Square Bars are exported to regions demanding strict metallurgical and dimensional control.
All shipments include EN 10204 3.1 / 3.2 MTC, heat numbers, and seaworthy packing.
Square Bars undergo extensive quality inspection:
TPI services: SGS, TÜV, DNV, BV, Lloyd’s on request
52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004
info@inoxsteelindia.com
+91 9820920268
Stainless steel, carbon steel, alloy steel, tool steel, duplex, nickel alloys, copper alloys, and titanium.
HR bars are strong and scale-coated, while Bright bars have tight tolerance and smooth surface for machining.
Yes — especially Bright, Forged, and Polished square bars.
Structural frames, machining, tooling blocks, forging stock, marine components, aerospace parts.
Yes — cut-to-length supply reduces wastage and machining time.
Yes — supplied to GCC, Africa, Europe, Americas & APAC.
Yes — 3.1/3.2 MTC with full traceability.