Steel House India manufactures, supplies, and stocks high-precision ASTM A276 / AISI 316 stainless steel hex bars in sizes ranging from 1mm to 400mm, available at a highly competitive domestic baseline price of Rs. 200 / Kg. This specialised long hexagonal product is processed using advanced drawing and rolling technologies to deliver exact across-flats (A/F) tolerances for heavy-duty fastening systems. Engineered with a specific 2.0% to 3.0% Molybdenum addition, our 316 structural hex bars offer superior resistance to chloride-induced pitting compared to standard 304 grade steel.
Our manufacturing facility utilizes advanced cooling beds and multi-roll straightening equipment to eliminate internal structural stresses before shipping. This specialized manufacturing control guarantees that every individual hex rod retains perfect straightness during rapid, automated machining operations. Item Code 316HEX is fully optimized for immediate distribution across domestic industrial sectors and international maritime procurement ports.
What sizes and dimensional limits are available for AISI 316 hexagonal rods?
Procurement managers can source dual-certified SS 316/316L hex profiles in custom lengths starting from 100mm short cut pieces up to full 6-metre mill lengths. While our primary manufacturing inventory focuses on the high-demand 6mm to 350mm diameter range, we can custom-engineer ultra-thin 1mm or heavy-duty 400mm shapes. By managing both Cold Finish Bright bar and Hot Rolled Black structural bar processing lines, we ensure your exact surface finish and mechanical yield criteria are met.
Below is our comprehensive, error-free physical sizing matrix, listing continuous geometric weight data across standard metric and imperial across-flats (A/F) configurations:
| Size (mm) | Size (Inches) | Across-Flats (A/F) Dimension | Theoretical Weight Per Foot (Kgs) | Theoretical Weight Per Meter (Kgs) |
|---|---|---|---|---|
| 6 mm | 0.236" | 6.00 mm A/F | 0.074 Kg/ft | 0.244 Kg/m |
| 8 mm | 0.315" | 8.00 mm A/F | 0.132 Kg/ft | 0.434 Kg/m |
| 10 mm | 0.393" | 10.00 mm A/F | 0.207 Kg/ft | 0.680 Kg/m |
| 11 mm | 0.433" | 11.00 mm A/F | 0.251 Kg/ft | 0.823 Kg/m |
| 12 mm | 0.472" | 12.00 mm A/F | 0.298 Kg/ft | 0.979 Kg/m |
| 12.7 mm | 1/2" | 12.70 mm A/F | 0.334 Kg/ft | 1.097 Kg/m |
| 15 mm | 0.590" | 15.00 mm A/F | 0.466 Kg/ft | 1.530 Kg/m |
| 17 mm | 0.669" | 17.00 mm A/F | 0.599 Kg/ft | 1.967 Kg/m |
| 22 mm | 0.866" | 22.00 mm A/F | 1.005 Kg/ft | 3.300 Kg/m |
| 23.8 mm | 15/16" | 23.81 mm A/F | 1.178 Kg/ft | 3.867 Kg/m |
| 27 mm | 1.062" | 27.00 mm A/F | 1.517 Kg/ft | 4.980 Kg/m |
| 46 mm | 1.811" | 46.00 mm A/F | 4.404 Kg/ft | 14.450 Kg/m |
| 50.8 mm | 2" | 50.80 mm A/F | 5.373 Kg/ft | 17.630 Kg/m |
| 100 mm | 3.937" | 100.00 mm A/F | 20.726 Kg/ft | 68.000 Kg/m |
| 200 mm | 7.874" | 200.00 mm A/F | 82.905 Kg/ft | 272.000 Kg/m |
| 350 mm | 13.779" | 350.00 mm A/F | 253.898 Kg/ft | 833.000 Kg/m |
Which international manufacturing standards govern the production of SS 316 hex bars?
Every batch delivered by Steel House India fully satisfies the rigorous testing mandates outlined in ASTM A276, ASTM A479, and ASME SA276 specifications. These international standards guarantee that the geometric profile achieves exact dimensional stability, which prevents binding or slippage during high-speed automated machining operations. We back our inventory with comprehensive EN 10204 3.1 Material Test Certificates (MTC), ensuring absolute traceability from the raw billet melting phase to the final centerless grinding stage.
Our testing infrastructure handles mandatory industrial cross-checks including destructive tensile tests, non-destructive ultrasonic evaluations, and precise intergranular corrosion testing (IGC Specimen Practice A/E). These strict quality measures guarantee compliance with global structural engineering and pressure-containment system standards.
- ➤ Standard Criteria Met: ASTM A276, ASTM A479, ASME SA276, AISI 316
- ➤ International Designations Matched: UNS S31600, UNS S31603 (Dual Certified), EN 10088-3, DIN 1.4401, DIN 1.4436, SUS 316
What is the exact chemical composition and mechanical threshold of Grade 316 hexagon bars?
Maintaining strict control over our alloy chemistry allows us to limit carbon to a maximum
of 0.08%, preventing harmful carbide precipitation during welding procedures. The robust
chromium-nickel-molybdenum matrix provides a minimum tensile strength of 515 MPa and a yield
strength of 205 MPa at a standard 0.2% offset. This structural configuration makes our hex
rods exceptionally stable when exposed to highly aggressive reducing fluids, chemical
processing acids, or marine environments.
The tables below provide verified, mathematically precise metallurgical values for our ASTM
A276 Grade 316 inventory:
Chemical Composition Matrix (UNS S31600)
| Carbon (C) | Manganese (Mn) | Silicon (Si) | Phosphorus (P) | Sulfur (S) | Chromium (Cr) | Molybdenum (Mo) | Nickel (Ni) | Nitrogen (N) | Iron (Fe) |
|---|---|---|---|---|---|---|---|---|---|
| 0.08% Max | 2.00% Max | 0.75% Max | 0.045% Max | 0.030% Max | 16.00 - 18.00% | 2.00 - 3.00% | 10.00 - 14.00% | 0.10% Max | Balance |
Minimum Mechanical Property Thresholds
| Property Type | Tensile Strength (MPa) | Yield Strength 0.2% Offset (MPa) | Elongation in 2 inches (%) | Hardness (Brinell HB) | Density (g/cm³) |
|---|---|---|---|---|---|
| Minimum Limit | 515 MPa Min | 205 MPa Min | 40% Min | 215 HB Max | 8.00 g/cm³ |
What is the price of stainless steel 316 hex bars in India and international markets?
While our domestic wholesale rate starts at Rs. 200 / Kg, our robust supply network allows us to provide transparent, multi-currency pricing for global engineering hubs. We offer real-time pricing benchmarks calibrated for immediate delivery across Singapore, Malaysia, the United Arab Emirates, and the United States. Leveraging our established distribution networks across major ports like Nhava Sheva (JNPT) and Mundra enables Steel House India to guarantee prompt, damage-free shipping timelines.
The international matrix below details current reference pricing across key global trade destinations:
| Size & Specification Description | Price Per Kg in INR (₹) | Price Per Kg in USD ($) | Price Per Kg in SGD (SGD) | Price Per Kg in UAE Dirham (AED) | Price Per Kg in MYR (RM) |
|---|---|---|---|---|---|
| 15mm Hexagonal Bar AISI 316 Bright | ₹ 330 / Kg | $ 3.95 / Kg | SGD 5.35 / Kg | AED 14.50 / Kg | MYR 18.60 / Kg |
| 22.2mm A/F Hexagonal Bar SS 316L | ₹ 398 / Kg | $ 4.76 / Kg | SGD 6.59 / Kg | AED 17.20 / Kg | MYR 20.86 / Kg |
| 25mm Hexagonal Bar UNS S31600 | ₹ 1,400 / Meter | $ 16.72 / Meter | SGD 23.15 / Meter | AED 60.44 / Meter | MYR 73.30 / Meter |
| 27mm Hexagonal Bar Custom-Cut | ₹ 1,515 / Meter | $ 18.15 / Meter | SGD 25.13 / Meter | AED 65.61 / Meter | MYR 79.57 / Meter |
Why choose Steel House India as your primary hex bar manufacturing partner?
Established in 1992, Steel House India has spent over three decades building an outstanding
reputation as a premier tier-one manufacturer, wholesaler, and exporter. Our expert team
utilizes state-of-the-art drawing benches and precision straightening machinery to create
flawless long products that exceed typical commercial tolerances. We evaluate every piece
against strict quality metrics, ensuring our patrons receive premium components at highly
competitive nominal market prices.
Our 30-year operational history allows us to fulfill bulk structural orders while
maintaining highly flexible minimum order quantities starting at just 1 Kg. We operate
dedicated logistics channels to provide complete dimensional reliability, standard-compliant
rust preventative surface treatments, and strong industrial wood-box packaging for safe
transit.
Which alternative stainless steel grades are available if AISI 316 is not required for your application?
Selecting the correct material grade depends entirely on your specific machining tolerances, environmental exposure, and project budget constraints. Review our alternative hexagonal long product profiles below to find the exact match for your operational requirements:
- ➤ Looking for high-speed machining profiles?
Review our complete inventory of ASTM A276 AISI 303 Stainless Steel Hex Bars optimised for rapid cutting and excellent thread production in automated screw machines. - ➤ Searching for standard cost-effective applications?
Browse our comprehensive stock of ASTM A276 AISI 304 Stainless Steel Hex Bars, providing the ideal balance of structural strength and universal corrosion resistance for non-marine environments.
Frequently Asked Questions (FAQ)
What is the difference between ASTM A276 and ASTM A479 specifications for 316 hex bars?
The primary difference is that ASTM A276 covers general-purpose structural bars, while ASTM A479 is strictly mandated for pressure vessels and high-temperature systems. While both standards share identical chemical requirements for Grade 316, ASTM A479 requires more rigorous metallurgical safety testing. Steel House India dual-certifies our hexagonal inventory to satisfy both criteria simultaneously.
Why does adding Molybdenum make AISI 316 hex bars superior to Grade 304?
Adding 2.0% to 3.0% Molybdenum directly prevents localized pitting and crevice corrosion caused by industrial chlorides and marine salts. Standard Grade 304 lacks this element, making it highly susceptible to rapid surface degradation in chemical or coastal environments. This small metallurgical change ensures that 316 hexagonal rods deliver a much longer operational lifecycle.
Can cold-drawn 316 stainless steel hex bars be used directly in automated CNC machining?
Yes, our cold-drawn bright hex bars feature precise across-flats (A/F) tolerances that allow direct feeding into high-speed automated CNC chucks. The cold finishing process significantly enhances surface smoothness and hardness, which prevents tool chatter during rapid operations. This consistency eliminates the need for initial surface grinding or sizing treatments at your workshop.