ASTM A276 316/316L Stainless Steel Hex Bar 7mm × 60-Inch Cold Drawn Precision Bright Bar Manufacturer & Supplier

316 stainless steel hexagonal bars are hexagonal prism-shaped metal materials made from 316 stainless steel as the base material. Their specifications range from H2 to H90, and they are suitable for temperatures ranging from -196°C to 800°C. Its chemical composition includes C ≤ 0.08%, Si ≤ 1.00%, Mn ≤ 2.00%, P ≤ 0.035%, and S ≤ 0.03%, along with 10.0–14.0% nickel, 16.0–18.5% chromium, and 2.0–3.0% molybdenum. This material offers corrosion resistance, heat resistance, and low-temperature strength; its resistance to pitting corrosion in marine environments and the chemical industry is superior to that of 304 stainless steel, and it retains good resistance to intergranular corrosion even after welding.

This product can be formed through hot working processes such as stamping and bending, making it suitable for manufacturing stainless steel bolts, nuts, and industrial components. Application areas include automotive parts, solar equipment, household appliances, precision electronics, architectural decoration, chemical processing equipment, and food processing machinery. Surface treatment processes include drawing and BA (bright annealed) finishing, and custom samples and rough machining services are available. Due to its outstanding oxidation resistance, Grade 303 is commonly used in coastal construction and acidic or alkaline environments.

Chemical Composition Of ASTM A276 316 Hex Bar

Manufacturing Process

316/316L stainless steel hexagonal bars have good hot-working properties and can be formed through hot-working processes such as stamping and bending, without exhibiting heat treatment hardening during processing.

Unlike martensitic stainless steels, 316/316L does not undergo heat-treatment hardening during fabrication. Its mechanical properties are achieved primarily through cold working rather than heat treatment, making it easier to machine, weld, and fabricate while maintaining stable dimensional accuracy.

The low-carbon composition of 316L further reduces the risk of carbide precipitation during welding, providing superior resistance to intergranular corrosion without the need for post-weld heat treatment in most applications. This makes 316/316L hex bars an ideal choice for manufacturing fasteners, valves, shafts, marine hardware, food processing equipment, pharmaceutical machinery, chemical processing components, and precision machined parts.

After hot working, solution annealing is recommended when maximum corrosion resistance and optimal mechanical properties are required. Combined with precision cold drawing and bright finishing, ASTM A276 316/316L stainless steel hex bars deliver excellent surface quality, tight dimensional tolerances, and long-term reliability in demanding industrial environments.

Applications Of Cold Drawn Stainless Steel Hex Bar

1. Do you have ASTM A276 316/316L stainless steel hex bars in stock?

Yes. We maintain regular stock of 316 and 316L stainless steel hex bars in various sizes. Standard lengths include 3 m, 6 m, and 60 inches, while custom cut lengths are available for OEM orders.

2. Can you manufacture custom hex sizes and lengths?

Yes. We offer custom manufacturing services for hex size, length, tolerance, surface finish, and packaging. Simply send us your drawings or specifications, and our engineering team will provide a customized solution.

3. What is your minimum order quantity (MOQ)?

Our MOQ depends on the product specification. Standard stock sizes usually have a low MOQ, while custom-made products are quoted based on size, quantity, and processing requirements.

4. Can you provide EN 10204 3.1 Material Test Certificates?

Yes. Every shipment can be supplied with an EN 10204 3.1 Material Test Certificate (MTC) showing chemical composition, mechanical properties, and inspection results. Third-party inspections such as SGS, BV, and TÜV are also available upon request.

5. What surface finishes do you offer?

We supply Bright Cold Drawn, Peeled, Ground, Polished, and Black finishes. Custom surface finishes can also be produced according to customer requirements.

6. Can you export 316/316L stainless steel hex bars worldwide?

Yes. We export to North America, Europe, the Middle East, Southeast Asia, Australia, and South America. Our products are packed in seaworthy export packaging to ensure safe international transportation.

7. How long is your production and delivery time?

For stock materials, delivery is typically 5–10 working days. For customized orders, production usually takes 15–30 days, depending on size, quantity, and machining requirements.

8. What industries commonly use 316/316L stainless steel hex bars?

Our hex bars are widely used in marine engineering, chemical processing, pharmaceutical equipment, food processing, oil & gas, pumps, valves, fasteners, CNC machining, and precision mechanical components.

9. Can you provide CNC machining or additional processing services?

Yes. Besides supplying stainless steel hex bars, we also provide cutting, chamfering, drilling, threading, CNC machining, polishing, and custom fabrication to help customers reduce secondary processing costs.