We specialize in the supply of 316 / 316L stainless steel bars, including round, square, flat, and hexagonal bars, featuring excellent corrosion resistance, consistent quality, and stable mechanical performance.

Based on application requirements, we support customized size, length, and surface finish, ensuring precise material matching for machining, fabrication, welding, and structural applications, especially in corrosive and marine environments.

By Manufacturing Process:
Hot rolled 316 / 316L stainless steel bar, Cold drawn 316 / 316L stainless steel bar

By Bar Shape:
316 / 316L round bar, 316 / 316L square bar, 316 / 316L flat bar, 316 / 316L hexagonal bar

Specifications

316 / 316L Stainless Steel Bar

316 stainless steel bar is an austenitic alloy with added molybdenum, offering excellent corrosion resistance, particularly in chloride or marine environments. It is widely used in chemical, food processing, and coastal applications requiring high durability and hygiene. 316L stainless steel bar, with lower carbon content, provides better weldability and resistance to intergranular corrosion, making it suitable for welded structures and pressure-related parts.

Mechanical Properties (Typical)

Chemical Composition (Typical)

Heat Treatment

1.Solution Annealing
Heating at ~1010–1120°C followed by rapid cooling in water or air restores corrosion resistance and ductility after cold working or welding.

2.Stress Relieving
Applied after heavy forming or machining to reduce residual stresses.

3.Hardening
316 / 316L cannot be hardened by heat treatment; strength improvement is achieved through cold working.

Features

316 Stainless Steel Bar

Contains molybdenum (Mo), providing improved resistance to pitting and crevice corrosion compared with 304 stainless steel

Offers higher strength and good machinability, suitable for precision machining and mechanical components

Performs well in chloride-containing and mildly acidic environments

Suitable for applications where welding is limited or post-weld heat treatment can be applied if required

Maintains stable mechanical properties over a wide temperature range

316L Stainless Steel Bar

Lower carbon content significantly reduces the risk of intergranular corrosion after welding

Excellent weldability, suitable for welded structures without post-weld heat treatment

Provides reliable corrosion resistance in chemical processing, marine, and pressure-related applications

Preferred for fabrication and structural use where long-term corrosion resistance and joint integrity are critical

Maintains good ductility and toughness after welding and forming

Applications

316 / 316L stainless steel bars are widely used in applications requiring high corrosion resistance, good mechanical strength, and long-term reliability, particularly in environments exposed to chlorides, chemicals, or moisture.

Typical application areas include:

Chemical & Petrochemical Industry
Used for reactors, heat exchangers, piping components, shafts, and fasteners due to excellent resistance to acids, alkalis, and chemical media.

Marine & Offshore Engineering
Commonly applied in marine shafts, structural supports, fasteners, and offshore equipment exposed to seawater and salt spray.

Food Processing & Pharmaceutical Equipment
Suitable for food-grade machinery, processing lines, tanks, and sanitary components where corrosion resistance and hygiene are critical.

Medical & Sanitary Applications
Used in medical equipment components, surgical tools, and sanitary fittings requiring cleanability and corrosion resistance.

Machinery & Precision Machining
Widely used for valves, pumps, fittings, bolts, and precision machined parts requiring dimensional accuracy and stable performance.

316L stainless steel bar is especially recommended for welded structures, pressure vessels, and fabrication applications, as its low carbon content helps reduce the risk of intergranular corrosion after welding.

FAQ – 316 / 316L Stainless Steel Bar

1.What is the difference between 316 and 316L stainless steel bar?
316L has lower carbon content than 316, providing improved weldability and better resistance to intergranular corrosion, especially after welding.

2.Is 316L stainless steel bar better than 316?
In welded or pressure-bearing applications, 316L is often preferred due to its lower carbon and reduced sensitization.

3.Can 316 stainless steel bar be used in marine environments?
Yes. Both 316 and 316L stainless steel bars offer excellent corrosion resistance in marine and chloride-rich environments.

4.Is 316 stainless steel bar food grade?
Yes. Both grades are widely used in food processing and pharmaceutical industries due to corrosion resistance and hygiene performance.

5.What is the difference between 304 and 316 stainless steel bar?

316 contains molybdenum for enhanced corrosion resistance compared with 304, making 316 more suitable for harsh or chloride environments.

We specialize in the supply of a full range of 316 stainless steel coils and support customized processing services, accurately matching application requirements based on corrosion resistance, mechanical performance, and fabrication needs.

By Manufacturing Process:
Cold rolled 316 stainless steel coil, Hot rolled 316 stainless steel coil

By Surface Treatment Type:
316 Mirror Stainless Steel Coil (8K), 316 Brushed Stainless Steel Coil (Long / Short Grain), 316 Embossed Stainless Steel Coil, 316 Sandblasted Stainless Steel Coil

Specifications

Chemical Composition (Typical)

Mechanical Properties (Typical)

Heat Treatment of 316 Stainless Steel Coil

1. Annealing (Solution Treatment)

Temperature range: 1010–1120°C

Process: Rapid cooling in water or air after heating

Purpose: Restores corrosion resistance and ductility after cold rolling or forming

2. Stress Relieving

Applied after heavy cold working

Helps reduce residual stresses and maintain dimensional stability

3. Hardening

316 stainless steel coil cannot be hardened by heat treatment

Strength improvement is achieved only through cold working

4. Performance Balance

Proper heat treatment maintains molybdenum distribution, enhancing resistance to pitting and crevice corrosion.

Ensures stable performance in chloride-containing and aggressive environments.

Features of 316 Stainless Steel Coil

Corrosion Resistance:
Superior resistance to chlorides, seawater, and aggressive chemical environments due to molybdenum addition.

Mechanical Properties:
Stable strength with excellent ductility for forming and fabrication.

Surface Quality:
Consistent surface finish suitable for industrial, marine, and decorative applications.

Weldability:
Good weldability with standard processes, maintaining corrosion resistance in welded areas.

Long-Term Reliability:
Designed for demanding environments where higher corrosion resistance is required.

Applications of 316 Stainless Steel Coil

Marine and Coastal Equipment:
ship components, offshore structures, coastal installations;  recommended: annealed coils.

Chemical and Petrochemical Industry:
tanks, pressure vessels, processing equipment;  recommended: cold rolled coils.

Food and Pharmaceutical Industry:
processing equipment, clean-room components;  recommended: 2B or BA finish.

Construction and Decoration:
exterior cladding, architectural panels;  recommended: brushed or polished coils.

Industrial Fabrication:
formed components exposed to corrosive environments;  recommended: medium thickness coils.

FAQ – 316 Stainless Steel Coil

Q1: What is the main difference between 316 and 304 stainless steel coil?
316 stainless steel coil contains molybdenum, providing significantly better resistance to chloride and chemical corrosion.

Q2: Is 316 stainless steel coil suitable for marine environments?
Yes. It is commonly used in marine and coastal applications due to its superior corrosion resistance.

Q3: Can 316 stainless steel coil be welded and formed easily?
Yes. It offers good weldability and formability when standard fabrication practices are followed.

Q4: Does 316 stainless steel coil require special heat treatment?
No special treatment beyond standard solution annealing is required to maintain its corrosion performance.

We supply 316 stainless steel pipes and tubes with stable quality and consistent performance. With enhanced corrosion resistance from molybdenum content, 316 stainless steel pipe is suitable for chemical, marine, food processing, and industrial piping systems.

316 stainless steel tubes are available in various sizes, wall thicknesses, and surface finishes to meet demanding industrial and structural requirements.

Available in wall thicknesses from 0.5 mm to 30 mm, with standard lengths or custom cut-to-size options.

By Manufacturing Process: Cold Drawn 316 Stainless Steel Seamless Pipe, Hot Rolled 316 Stainless Steel Seamless Pipe, ERW 316 Stainless Steel Pipe, Welded 316 Stainless Steel Tube
By Surface Treatment Type: 316 Pickled Stainless Steel Pipe, 316 Bright Annealed Stainless Steel Tube (BA), 316 Polished Stainless Steel Pipe, 316 Mirror Stainless Steel Tube, 316 Brushed Stainless Steel Tube

Chemical Composition of 316 Stainless Steel (wt%)

Mechanical Properties of 316 Stainless Steel Pipe / Tube

Heat Treatment of 316 Stainless Steel

316 stainless steel is an austenitic stainless steel and cannot be hardened by heat treatment. Heat treatment is mainly applied to improve corrosion resistance and restore ductility.

Solution Annealing: 1010 – 1120 °C, followed by rapid cooling

Stress Relief: Applied after cold forming or welding when required

Key Characteristics of 316 Stainless Steel Pipe / Tube

Excellent Corrosion Resistance
Molybdenum improves resistance to chlorides, acids, and marine environments.

Good Weldability
Suitable for TIG, MIG, and arc welding without major loss of corrosion resistance.

Stable Mechanical Properties
Maintains strength and toughness across a wide temperature range.

Good Formability
Easy to bend, cut, and fabricate for piping and structural systems.

Preferred for Harsh Environments
Widely used where 304 stainless steel is insufficient.

Typical Applications

316 stainless steel pipes and tubes are commonly used in:

Chemical and petrochemical processing systems

Marine and offshore piping

Food and beverage processing equipment

Pharmaceutical and sanitary pipelines

Heat exchangers and pressure vessels

Coastal and high-humidity architectural structures

FAQ – 316 Stainless Steel Pipe / Tube

Q1: What is 316 stainless steel pipe used for?

316 stainless steel pipe is used in corrosive environments such as chemical plants, marine systems, and food processing facilities.

Q2: What is the difference between 316 and 304 stainless steel pipe?

316 contains molybdenum, providing better resistance to chlorides and chemical corrosion than 304.

Q3: Is 316 stainless steel pipe suitable for marine use?

Yes, 316 stainless steel pipe is commonly used in marine and coastal environments.

Q4: Can 316 stainless steel tube be welded?

Yes, 316 stainless steel tube has good weldability using common welding methods.

Q5: Do you offer seamless and welded 316 stainless steel pipes?

Yes, both seamless and welded 316 stainless steel pipes are available.

Q6: Are custom sizes available for 316 stainless steel pipe?

Yes, custom diameters, wall thicknesses, and lengths are available upon request.

Specifications

316/316L stainless steel plates

Both 316 and 316L stainless steel plates are austenitic stainless steels, with their core alloys being chromium (Cr ≥ 16%) and nickel (Ni ≥ 10%). The key difference between the two lies in their carbon content: 316 stainless steel has a carbon content of ≤ 0.08%, while 316L stainless steel (the "L" stands for "Low Carbon") has a carbon content of ≤ 0.03%. This carbon content difference is not only the core difference between the two, but also directly affects their intergranular corrosion resistance and weldability, providing a clear basis for selection in different application scenarios.

Chemical Composition (%)

Mechanical Properties

Heat Treatment of 316 / 316L Stainless Steel Sheet

1. Annealing (Solution Treatment)

Temperature Range: 1010–1120°C

Process: Heat to the specified temperature, then rapidly cool in water or air.

Purpose: Restores full corrosion resistance and ductility by dissolving carbide precipitates and homogenizing the microstructure.

2. Stress Relieving

Application: Performed after heavy forming, bending, or machining operations.

Purpose: Reduces residual stress and minimizes distortion, maintaining dimensional accuracy for precision components.

3. Hardening

Note: 316 / 316L stainless steel cannot be hardened by heat treatment.

Alternative: Strength improvement can only be achieved through cold working, such as rolling or drawing.

4. Performance Balance

Proper heat treatment maintains the chromium-to-carbon balance, preventing sensitization and intergranular corrosion.

Ensures stable performance during welding, high-pressure vessel operation, and exposure to elevated temperatures or corrosive environments.

Features of 316/316L Stainless Steel Plates

1. Corrosion Resistance They offer superior corrosion resistance (surpassing 304), withstanding atmospheric/humid coastal environments and dilute sulfuric/nitric acid. The 2%-3% molybdenum content resists chloride-induced corrosion (e.g., saltwater). 316L (C≤0.03%) further enhances post-weld intergranular corrosion resistance.
2. Mechanical Properties Balances high strength and ductility: Tensile strength 515-750 MPa, yield strength 205-310 MPa (ensures load-bearing capacity); elongation ≥40% (enables forming, bending, deep drawing without cracking). 
3.  Weldability Compatible with TIG/MIG/arc welding, no pre/post-weld heat treatment required for most cases. 316L’s low carbon minimizes welding sensitization, ideal for welded structures.
4. Temperature Tolerance Maintains stability at up to 800°C (continuous service) and ~925°C (intermittent service), plus good low-temperature toughness (-196°C) for cryogenic applications.

Applications of 316 / 316L Stainless Steel Sheet

Marine & Offshore Equipment – Used for ship decks, seawater desalination tanks, and offshore platform structures.
Typically used in 6–12 mm thickness, offering excellent resistance to saltwater corrosion and sufficient load-bearing strength.

Medical & Pharmaceutical Industry – Ideal for surgical equipment housings, drug storage tanks, and sterile processing pipelines.
Commonly supplied in 1–3 mm thickness; 316L is preferred for its superior cleanliness and compliance with medical-grade hygiene standards.

Chemical & Petrochemical Industry – Applied in acid and alkali reactor linings, corrosion-resistant piping, and chemical storage tanks.
Recommended 3–8 mm thickness, capable of withstanding strong chemical and chloride corrosion.

High-End Food Processing – Suitable for dairy fermentation tanks, soy sauce brewing equipment, and seafood processing tables.
Typically 1.5–4 mm thickness, with 316L providing the best resistance to contamination and preventing impurity precipitation.

Coastal Construction & Decoration – Used in coastal building facades, outdoor sculptures, and spa or resort bathroom panels.
Decorative thin sheets (0.8–1.2 mm) are used for panels, while large-format sheets (4x8 ft / 1219x2438 mm or 5x10 ft / 1500x3000 mm) are ideal for facade cladding.

Industrial Machinery & Cryogenic Equipment – Suitable for low-temperature LNG storage components and high-temperature furnace linings.
Typically 4–10 mm thickness, maintaining mechanical stability from -196°C to 800°C.

316/316L Stainless Steel Sheet — FAQs

1. What is the difference between 316 and 316L stainless steel sheet?
316L contains lower carbon content (≤0.03%) compared to 316 (≤0.08%), which improves weldability and resistance to intergranular corrosion. 316L stainless steel sheet is often used in welded structures, chemical processing, and marine environments.

2. Is 316 stainless steel sheet magnetic?
Both 316 and 316L stainless steel sheets are non-magnetic in annealed condition. However, slight magnetism may appear after cold working or bending.

3. What thicknesses and sizes are available for 316/316L stainless steel sheet?
Common thicknesses include 0.5 mm, 1 mm, 2 mm, 3 mm, 6 mm, and 10 mm. Standard sizes are 4x8 ft (1219x2438 mm) and 5x10 ft (1500x3000 mm). Custom cutting and polishing are available.

4. Can 316L stainless steel sheet be used for food and medical equipment?
Yes. 316L is food-grade and medical-grade compliant, making it ideal for dairy tanks, kitchen counters, pharmaceutical vessels, and surgical instruments.

5. How corrosion-resistant is 316 stainless steel sheet in seawater?
316 and 316L offer excellent resistance to saltwater, chloride, and acid corrosion, making them suitable for marine structures, desalination systems, and coastal applications.

6. Can 316 stainless steel sheet be welded or formed easily?
Yes. Both grades have good weldability and formability. After welding, solution annealing is recommended for 316 to restore corrosion resistance; 316L usually does not require this step.

7. What is the surface finish of 316/316L stainless steel sheet?
Available finishes include 2B, BA (bright annealed), No.4 (brushed), HL (hairline), and mirror finish, depending on the application — decorative, industrial, or hygienic.

8. How does 316/316L stainless steel compare to 304 stainless steel?
316/316L contains molybdenum, giving it higher corrosion resistance, especially in chloride or acidic environments. 304 is more cost-effective but less durable in harsh conditions.