• Metallica is one of the biggest stainless steel 316/316L product supplier and manufacturer in India, with over 250 customers in India and overseas. We are bulk buyers and exporters of stainless steel 316/316L pipes, fittings and flanges from our factory in India, and are able to give you the best price and quality just in time.
  • We stock all major forms of stainless steel 316/316L grade such as SS 316/316L pipe and tube, SS 316/316L forged flange and fittings, SS 316/316L butt-welding pipe fittings, SS 316/316L elbow, SS 316/316L tee, SS 316/316L reducer, SS 316/316L stub end, gaskets, fasteners, valves, sanitary fittings etc. Being one of the largest volume stainless steel 316/316L supplier in Mumbai, we can guarantee you the lowest prices.
  • At Metallica Metals, we believe in selling in volume and increasing our customer base across the globe, enabling us to work on low margins. We have an extensive trader network across India and the Middle East, who buy from us on a regular basis.
  • In addition to traders, we have many EPC contractors, companies and end users in various industries as our customers for stainless steel. We are leading stainless steel 316/316L suppliers for various applications ranging from low/medium/high pressure or temperatures.
  • Our company is a professional steel enterprise, specialized in steel plate, section steel, steel bar, stainless steel etc.
Stainless Steel 316 / 316L Supplier, Manufacturer, Wholesaler in India and Overseas
  • Largest Stainless Steel 316/316L Products Supplier in India, with over 300 Tons in Stock

  • We Sell Stainless Steel 316/316L Products in Price Range of Rs. 200/KG to Rs. 600/KG.

  • Our Annual Sales Volume for Stainless Steel 316/316L Products is Over 1500 tons.

  • Stainless Steel 316/316L Pipes, are Sold with Complete Range of Related Pipe Fittings.

  • On-Time Delivery with Quality Assurance and Price Guarantee for Stainless Steel 316/316L.

What is SS 316 and 316L?

Stainless Steel 316 is a chromium-nickel based, molybdenum-bearing austenitic stainless steel that possesses increased levels of resistance against several substances, due to the addition of molybdenum in its composition to help resist corrosion to chlorides (like sea water and de-icing salts). Grade 316 is an improved version of SS 304 because of slightly higher molybdenum and nickel content. The molybdenum allows SS 316 to be more resistance to corrosion overall in many aggressive environments, with specific resistance against chlorine pitting and crevice corrosion in chloride environments. SS 316 is also found to be more applicable in areas with high or elevated temperatures compared to other stainless steels. It has more heat resistance than Type 304 but otherwise possesses many of the same general characteristics.
316’s corrosion resistance is especially effective against chemicals, such as those used in the paper and textile industries. The metal finds other common applications in food processing equipment, chemical processing, nuts and bolts, and medical implants. While the metal is pliable under hot and cold-working techniques, it cannot be work hardened with heat treatment and in general is considered to have lower weldability compared to the 304 type stainless steels. However, it is still preferred over many other stainless steel grades in terms of workability.

The letter L in 316L stands for low carbon. L-grades have 0.035% carbon maximum. L-grades are resistant to sensitization in short-term exposures or heat treatments. L-grade often have slightly lower (typically 5,000 psi less) minimum strengths than standard stainless steel.

Austenitic stainless steels can be welded together using many different welding processes. Some are more preferred for welding than others, such as 304, 308, 316, 321, and 347 which are all austenitic grades that are weldable.

What is the Difference Between SS 304, SS 316 and SS 316L?

316 316L
Contains more carbon Contains less carbon
More liable to weld decay Better for avoiding wel corrosion
Effective in acidic environments Good for high-temperature, high-corrosion use

The difference between 304 and 316 is that 304 contains 18% chromium and 8% nickel while 316 contains 16% chromium, 10% nickel and 2% molybdenum. The molybdenum is added to help resist corrosion to chlorides (like sea water and de-icing salts).

The difference between 316 and 316L stainless steel is that 316L has a .03 max carbon and is good for welding whereas 316 has a mid range level of carbon. Even greater corrosion resistance is delivered by 317L, in which molybdenum content increases to 3 to 4% from the 2 to 3% found in 316 and 316L.

The main difference is the lower carbon content, 316 being 0.030, 316L being as low as 0.016. Other elements are also somewhat lower,such as sulfur, phosphorus and copper. The 316L is more ductile when annealed, and is markedly more corrosion resistant, especially after welding. 316L is much more weld friendly than 316, as it is less susceptible to intergranular corrosion, after welding or air service up to 1600 °F (intermittent) 1700 °F (continuous), due to carbide precipitation. In 316 carbide precipitation will occur between 900 F-1070 F after 9 hours, whereas 316L will precipitate carbides between 900 °F – 1010 °F after 181 hours, 316L showing much more resistance to sensitization.

316L is very similar to 316 in almost every way. Cost is very similar, and both are durable, corrosion-resistant, and a good choice for high-stress situations.

316L, however, is a better choice for a project that requires a lot of welding because 316 is more liable than 316L to weld decay, though 316 can be annealed to resist weld decay. 316L also is a great stainless steel for high-temperature, high-corrosion uses, which is why it’s so popular for use in construction and marine projects.

Neither 316 nor 316L is the cheapest options. 304 and 304L are similar but lower-priced. And neither are as durable as 317 and 317L, which have higher molybdenum content and are better for overall corrosion resistance.

Applications of 316/ 316L

  1. Industrial fluid conveying pipes
  2. Mechanical structural tubes
  3. Heat ex-changer and condenser tubes
  4. Walled water tubes
  5. Larger caliber industrial welded pipes etc.
  6. Fluid and gas transport
  7. Decoration
  8. Construction
  9. Medical equipment
  10. Aviation
  11. Boiler
  12. Heat-exchanger and other fields

Properties and Processing Characteristics of Stainless Steel 316/ 316L

Annealing 316 and 316L stainless steels requires heating to between 1,900 and 2,100 degrees Fahrenheit (1,038 to 1,149 degrees Celsius) before rapidly quenching.

Type 316 grade stainless steel is particularly effective in acidic environments, protecting against corrosion caused by sulfuric, hydrochloric, acetic, formic, and tartaric acids, as well as acid sulfates and alkaline chlorides.

Type 316L stainless steel is an extra-low carbon version of the 316 steel alloy. The lower carbon content in 316L minimizes deleterious carbide precipitation as a result of welding. Consequently, 316L is used when welding is required in order to ensure maximum corrosion resistance.

Product Specification

Product TP316, 1.4401, UNS S31600 Stainless Steel
Specification ASTM A213, ASTM A249, ASTM A269, ASTM A270, ASTM A312, ASTM A358 CL. I to V, ASTM A403, ASTM A554, ASTM A632, ASTM A789, ASTM A790 TP316
Type and Form Seamless & ERW/EFW/LSAW Welded,Fabricated, Round, Square, Rectangular, Hydraulic, Large Diameter 100% X-Ray Welded
Size Range Size: 6″NB to 100″NB – EFW
Size:1/2”NB to 24” NB – ERW
1/8” NB to 30” NB – Tubing Size
1/2” NB to 24” NB – Pipes and Tubes Size
Thickness SCH20, SCH30, SCH40, STD, SCH60, SCH80, XS, SCH120, SCH140, SCH160
Wall Thickness: 5S – XXS (Heavier On Request)
End Plain End, Beveled End, Threaded
Length 6 Meter, Custom Lengths, Single Random, Double Random
Other Grades TP304, TP304L, TP304LN, TP316, TP316Ti, TP316H, TP316L, TP316LN, TP317, TP317/317L, TP321, TP347, TP310S
Test Certificates Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
ASTM Reference Standards
  • A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels.
  • A370 Test Methods and Definitions for Mechanical Testing of Steel Products.
  • A480 A480M Specification for general requirements for Flat-rolled stainless and Heat-Resisting steel plate, sheet, and strip.
  • A632 Specification for Seamless and welded austenitic stainless-steel tubing (small-diameter) for general service.
  • A1016 A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless-Steel Tubes.
  • E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
Testing Mechanical Testing Such as Tensile of Area, Hardness Test, Chemical Analysis – Spectro Analysis, Positive Material Identification – PMI Testing, Flattening Test, Micro and MacroTest, Pitting Resistance Test, Flaring Test, Intergranular Corrosion (IGC) Test
Documents Commercial Invoice, Packing List, Certificate of Origin, Fumigation Certificates, Raw Material Test Reports, Material Traceability Records, Quality Assurance Plan (QAP), Heat Treatment Charts, Test Certificates certifying NACE MR0103, NACE MR0175, Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Guarantee Letter, NABL approved Laboratory Test Reports

Chemical, Mechanical and Physical Properties of 316/316L

Specification

STANDARD 316 316L 316TI
UNS S31600 S31603 S31635
WERKSTOFF NR. 1.4401 1.4404 1.4571

Chemical Composition

ELEMENT 316 316L 316TI
NI 11.0 – 14.0 10.0 – 14.0 10.0 – 14.0
C 0.08 max 0.035 max 0.08 max
MN 2.0 max 2.0 max 2.0 max
P 0.045 max 0.045 max 0.045 max
S 0.30 max 0.30 max 0.30 max
SI 1.0 max 1.0 max 0.75 max
CR 16.0 – 18.0 16.0 – 18.0 16.0 – 18.0
MO 2.0 – 3.0 2.0 – 3.0 2.0 – 3.0
TI 5x(C+N) – 0.70
N 0.10 max

Physical Properties

DENSITY 7.99 g/cm 3 / 0.29 lb/in 3
MELTING POINT 1371 – 1399 (°C) / 2500 – 2550 (°F)
ANNEALED 1040 (°C) / 1900 (°F)
QUENCH Rapid Air/Water
ELECTRICAL RESISTIVITY 74 microhm-cm (20 degrees Celsius)
SPECIFIC HEAT 0.50 kJ/kg-K (0–100 degrees Celsius)
THERMAL CONDUCTIVITY 16.2 W/m-k (100 degrees Celsius)
MODULUS OF ELASTICITY 193 x 103 in tension

Mechanical Properties

Alloy UNS Spec. Tensile Strength Yield Strength Elongation in 2 inch (min.) % Grain Size Req. Max. Hardness HRB Rockwell Modulus of Elasticity (x106 psi) Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) Thermal Conductivity(BTU-in/ft2-h-°F)
MPa ksi ksi MPa
316 S31600 A312 515 75 30 205 35 90 HRB 28 9.2 116
316L S31603 A213 485 70 25 170 35 90 HRB 28 9.2 116
316H S31609 7 or coarser

Fabrication Data

Alloy 316/316L can be easily welded and processed by standard shop fabrication practices.
Hot Forming
Working temperatures of 1700–2200°F (927–1204°C) are recommended for most hot working processes. For maximum corrosion resistance, the material should be annealed at 1900°F (1038°C) minimum and water quenched or rapidly cooled by other means after hot working.

Cold Forming
The alloy is quite ductile and forms easily. Cold working operations will increase the strength and hardness of the alloy and might leave it slightly
magnetic.

Welding
Alloy 316/316L can be readily welded by most standard processes. A post weld heat treatment is not necessary.

Machining
Alloy 316/316L is subject to work hardening during deformation and is subject to chip breaking. The best machining results are achieved with slower
speeds, heavier feeds, excellent lubrication, sharp tooling and powerful rigid equipment.

Heat Treatment and Resistance

Heat Treatment

Annealing
The austenitic stainless steel are provided in the mill annealed condition ready for use. Heat treatment may be necessary during or after fabrication to remove the effects of cold forming or to dissolve precipitated chromium carbides resulting from thermal exposures. For the Alloys 316 and 317L the solution anneal is accomplished by heating in the 1900 to 2150°F (1040 to 1175°C) temperature range followed by air cooling or a water quench, depending on section thickness. Cooling should be sufficiently rapid through the 1500 to 800°F (816 to 427°C) range to avoid reprecipitation of chromium carbides and provide optimum corrosion resistance. In every case, the metal should be cooled from the annealing temperature to black heat in less than three minutes.

Alloys 316 and 317L stainless steel tube cannot be hardened by heat treatment.

Heat Resistance

  • Good oxidation resistance in intermittent service to 1600°F (870°C) and in continuous service to 1700°F (925°C)
  • Grade 316L is more resistant to carbide precipitation.

Corrosion Resistance

SS 316/ 316L are subject to pitting and crevice corrosion in warm chloride environments, and to stress corrosion cracking above about 122°F (50°C). Generally more resistant than 304 in range of atmospheric environments and many corrosive media due to the increased chromium
and molybdenum content. Considered resistant to potable water with up to about 1000mg/L chlorides at ambient temperatures, reducing to about 500mg/L at 140°F (60°C). Usually regarded as the “marine grade stainless steel” – but is not resistant to warm sea water.

Over 200 Tons in Stock for 316/316L Stainless Steel Products!

As one of the biggest 316 /316L stainless steel stockholder and supplier in India, Metallica carries inventory of over 200 tons in its warehouses in Mumbai, Maharashtra India. We sell our 316 / 316L steel products throughout India, and to international clients.

How are Steel Pipes Certified?

Certification of Steel Pipes

Manufacturers issue a Material Test Report or Mill Test Report to validate that the product meets the chemical analysis and mechanical properties specification. The MTR will contain all relevant data to the product and will accompany the product through its lifecycle.

The following are typical parameters that may be recorded on an MTR:

  • Chemical composition including carbon content, alloys, and sulfur
  • Material size, weight, identification, and grade
  • Material heat number, which ties back to the processing batch
  • Mechanical properties like tensile strength, yield strength, and elongation

At Metallica, we will Provide you with Original MTR’s for all 316 / 316L Stainless Steel Pipe and its Related Products! We will Send Our Test Certificates, along with Quotation