ASTM A312 TP316L Stainless Steel Pipe Manufacturer, Suppliers, and Exporters in India

Mcneil Instrument is a leading manufacturer, supplier, and exporters specializing in various grades of tubular products, including ASTM A312 Tp316l pipes. Our comprehensive range encompasses different schedules and diameters to meet diverse industrial needs. Our ASME A312 Tp316l offerings stand out for their exceptional suitability for subzero temperatures, setting them apart from equivalent products in the market. With a focus on quality and versatility, we manufacture custom ASTM A312 Tp316l seamless pipes alongside standard sizes.

Renowned for their resilience against chloride corrosion, our Stainless Steel Pipe A312 Tp316l variants offer robust resistance to pitting and crevice corrosion, even in chloride-rich environments. Ideal for marine applications, seawater purification systems, and wastewater management, our Stainless Steel Pipe 316l Seamless products cater to various industries. We offer different schedules to accommodate varying diameters and wall thickness requirements. From the medium-pressure containment capacity of Stainless Steel Pipe 316l Schedule 40 to the thinner-walled Stainless Steel Pipe 316l Schedule 10s, we cater to diverse needs.

Our 316l Seamless Pipe Schedule 40 pipes are extensively utilized in the oil & gas sector, thanks to their reliability and durability. Moreover, our electric-resistant welded SS 316l Erw Pipe offers enhanced strength and longevity. The ease of welding, with or without filler materials, makes the 316l Welded Pipe a preferred choice. Additionally, we provide Square Pipe 316l, offering extra strength for structural applications. For inquiries and a complimentary quote, please reach out to us.

Available 316L Stainless Steel Pipe Sizes

ASTM A312 TP316L Seamless Pipes

Size: 6NB – 1200NB
OD: 1/8″ – 12″ NPS
Thickness : 0.6 – 12.7 mm
Length: Single, Double Random & Cut Length

ASTM A312 TP316L Erw / Welded Pipes

Size: 1/8” – 36” NB, 1/4” – 36” OD
OD: 6.35 – 114.3 mm
Thickness : 0.8 – 12.7 mm
Length: up to 26 Meters

ASTM A312 TP316L Specification List

Mcneil Instrument is a leading manufacturer,suppliers and exporter of ASTM A312 Tp316l pipe based in India, specializing in the production of Dual certified ASTM A312 Grade TP316L Square Pipe. Our SS 316L Round Pipes are meticulously crafted by the ASME B36.10 standard to ensure quality and compliance with industry regulations.


ASTM / ASME GradeASTM A312 / ASTM SA 312
Dimensional ANSI SpecificationsANSI/ ASME B36.19M, ANSI/ ASME B36.10M
Different Types and FormsRectangle, Hex, Honed, Square, Round, Hydraulic Pipe supplier
Basic types we produce100% X Ray Welded, CDW, ERW, Welded, Seamless, Fabricated
Pipe End BevelPlain, Beveled and Treaded End
Delivery & Finished ConditionBright Annealed, Cold Drawn, Polished, Annealed and Pickled, Pickled and Passivated
Mechanical Surface Finish2B, No.4, No.1, No.8 Mirror Finish or custom Finish as per customer Requirements
ASTM A312 TP316L Wall ThicknessSCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Other Facilities we offerGrooving, Threading, Machining, Ultrasonic Testing, Customer Tagging/ Marking, Destructive, MTR’s Available, Threading, Polishing, Export Documentation, Non Destructive, Beveling, Export Packaging, Cutting, Color Coding, Material testing
SS 316L Pipes Marking
  1. Specification
  2. Grade
  3. Nominal Pipe Sizes
  4. Pipe Schedule or Wall Thickness
  5. Manufacturing Method (Seamless / Welded)
  6. Heat Number
  7. Manufacturer/ Supplier Name or Custom Logo – on request

Marked Pipe Sample: ANSI B36.19 ASTM A312 TP316L 12″ NB SCH 60S SEAMLESS HEAT NO. XXXX

Stocking distributor of
  • Jindal Stainless Steel
  • Sandvik
  • DMV
  • Tubacex
  • Sumitomo
Dual certified 316L Pipe supplierDual certification : To certify ASTM A312 316L and ASME SA312 316L material specification

Why SS 316L Pipe suitable in the Marine industry and temperatures up to 850ºC?

SS 316L Pipe is deemed ideal for the marine sector and environments with temperatures reaching up to 850ºC due to its exceptional corrosion resistance and high temperature stability. This makes it an optimal choice for various applications within the marine industry. For Mcneil Instrument, SS 316L Pipe stands as the preferred solution, offering unparalleled durability and performance in demanding conditions while ensuring operational reliability and safety.

Mcneil Instrument offers Grade 316L as an austenitic stainless steel solution, capable of withstanding temperatures ranging approximately from 450 degrees Celsius to 850 degrees Celsius. However, the operational range may vary based on factors such as system pressure, the nature of components flowing through the pipeline, and environmental conditions. In marine settings characterized by the presence of chloride ions and salty air and water, corrosion is a prevalent issue due to the facilitation of electron transfer, which catalyzes oxidation and reduction reactions.

ASTM A312 TP316 with its lower carbon content, Mcneil Instrument’s 316L stainless steel minimizes intergranular precipitation and local corrosion induced by welding. Additionally, the inclusion of molybdenum alongside chromium and nickel enhances resistance to chloride ion stress corrosion. These inherent properties render the material highly resistant to crevice and pitting corrosion in chloride-rich environments.

Given its resilience to chloride ion corrosion and an operational temperature ceiling of approximately 850 degrees Celsius (or precisely 1550F), Mcneil Instrument’s SS 316L Pipe emerges as an ideal choice for marine piping projects, particularly in conditions where temperatures can reach up to 850 degrees Celsius.

316L Stainless Steel Pipe for sale

SS UNS S31603 Box PipesSA312 316L Stainless Steel Threaded Pipes
werkstoff nr. 1.4436 Stainless Steel 316L C Class PipesTP 316L Stainless Steel DIN 1.4436 Water Pipes
Stainless Steel UNS S31603 Dairy PipesASTM A312 SS 316L Rectangular Pipes
A312 GR TP316L Square PipesAustenitic Stainless Steel 316L Round Pipes
A312 TP 316L Seamless PipesASTM A312 TP316L Exhaust Pipes
TP 316L Stainless Steel Hollow PipesA312 TP316L Schedule 40 Pipes
ASTM A 312 TP 316L Stainless Steel Schedule 80 PipesSA 312 TP 316L 3 Inch Pipes
ASTM A312 GR TP316L Schedule 10 PipesTP 316L Stainless Steel DIN 1.4436 Erw Pipes
A312 Stainless Steel 316L Electropolished PipesASTM A312 SS 316L Polished Pipes

ASTM A312 TP316L Equivalent grades

TP 316LS316031.4404 / 1.4435SUS 316LZ3CND17‐11‐02 / Z3CND18‐14‐03316S11 / 316S1303Ch17N14M3 / 03Ch17N14M2X2CrNiMo17-12-2 / X2CrNiMo18-14-32348

ASTM A312 TP316L allowable stress

SS GradeTP316LTP316L
Nominal Composition16Cr-12Ni-2Mo16Cr-12Ni-2Mo
Product ShapeWelded pipeSeamless & Welded pipe
UNS designationS31603S31603
Sizes/ Thickness [mm]
P Number88
Group Number11
Minimum Tensile
Minimum Yield
I-Applic. and Maximum temperature limit
III-Applic. and Maximum temperature limit [°C]NP427
VIII-1-Applic. and Maximum temperature limit [°C]454454
XII-Applic. and Maximum temperature limit [°C]343343
External Pressure
Chart No.

316L Pipe Dimensions

SizesOutside DiameterWall ThicknessWeight
1/8 inches0.405 inches
10.287 mm
0.068 inches
1.7272 mm
0.245 lbs/ft
0.36460018 kg/m
1/4 inches0.54 inches
13.716 mm
0.088 inches
2.2352 mm
0.425 lbs/ft
0.6324697 kg/m
3/8 inches0.675 inches
17.145 mm
0.091 inches
2.3114 mm
0.568 lbs/ft
0.845277152 kg/m
1/2 inches0.84 inches
21.336 mm
0.109 inches
2.7686 mm
0.851 lbs/ft
1.266427564 kg/m
3/4 inches1.05 inches
26.67 mm
0.113 inches
2.8702 mm
1.131 lbs/ft
1.683113484 kg/m
1 inches1.315 inches
33.401 mm
0.133 inches
3.3782 mm
1.68 lbs/ft
2.50011552 kg/m
1 1/4 inches1.66 inches
42.164 mm
0.140 inches
3.556 mm
2.274 lbs/ft
3.384084936 kg/m
1 1/2 inches1.9 inches
48.26 mm
0.145 inches
3.683 mm
2.719 lbs/ft
4.046317916 kg/m
2 inches2.375 inches
60.325 mm
0.154 inches
3.9116 mm
3.654 lbs/ft
5.437751256 kg/m
2 1/2 inches2.875 inches
73.025 mm
0.203 inches
5.1562 mm
5.795 lbs/ft
8.62391038 kg/m
3 inches3 1/2 inches
88.90 mm
0.216 inches
5.4864 mm
7.579 lbs/ft
11.278794956 kg/m
3 1/2 inches4 inches
101.6 mm
0.226 inches
5.7404 mm
9.113 lbs/ft
13.561638532 kg/m
4 inches4.500 inches
114.3 mm
0.237 inches
6.0198 mm
10.794 lbs/ft
16.063242216 kg/m
5 inches5.563 inches
141.3002 mm
0.258 inches
6.5532 mm
14.623 lbs/ft
21.761422172 kg/m
6 inches6.625 inches
168.275 mm
0.280 inches
7.112 mm
18.981 lbs/ft
28.246840884 kg/m
8 inches8.625 inches
219.075 mm
0.322 inches
8.1788 mm
28.564 lbs/ft
42.507916496 kg/m
10 inches10.75 inches
273.05 mm
0.365 inches
9.271 mm
40.498 lbs/ft
60.267665672 kg/m
12 inches12.75 inches
323.85 mm
0.375 inches
9.5250 mm
49.580 lbs/ft
73.78317112 kg/m

SA 312 TP 316L Pipe Standard

StandardSS 316L
WERKSTOFF NR. / DIN1.4404 / 1.4435
AFNORZ3CND17-11-02 / Z3CND18-14-03

ASTM A312 TP 316L Stainless Steel Pipe Roughness

Material SurfaceAbsolute Roughness Coefficient
ε mm
Aluminum Alloy, Lead0.001 – 0.002
Drawn Copper/ Brass0.0015
316L Stainless Steel0.015

316L Pipe Hardness

GradeRockwell B Hardness (HR B) maxBrinell Hardness (HB) max

SS 316L Pipe Schedule Chart

ODO/DNominal Wall Thickness (NPS)
DIASchedule.5SSchedule.5Schedule 10SSchedule.10Schedule.20SSchedule.30Schedule.40SSchedule.40Schedule 60
Weight Kg/MtrWall
Weight Kg/MtrWall
Weight Kg/MtrWall
Weight Kg/MtrWall
Weight Kg/MtrWall
Weight Kg/MtrWall
Weight Kg/MtrWall
Weight Kg/MtrWall
Weight Kg/Mtr

HS Code For SS Pipe 316L

GradeCountryHS Code
SS 316L PipeMaldives73042400
SS 316L PipeSingapore73049000
SS 316L PipeItaly73044100
SS 316L PipeOman73049000
SS 316L PipeUnited Arab Emirates (UAE)73041990
SS 316L PipeQatar73041990
SS 316L PipeSaudi Arabia (KSA)73049000

ASME SA 312 TP 316L Pipe Mechanical Properties

ASTM A312Tensile Stress (MPa) minYield Stress 0.2% Proof (MPa) minElongation (% in 50mm) minHardness
Rockwell B (HR B) maxBrinell (HB) max

A312 Gr TP 316L Stainless Steel Pipe Yield Strength

0.2% Proof (MPa) min

GradeYield Strength

316L Stainless Steel Pipe Temperature Rating

GradeMean Co-eff of Thermal Expansion (µm/m/°C)Thermal Conductivity temperature (W/m.K)Elec Resistivity (nΩ.m)Specific Heat 0-100 °C (J/kg.K)
0-100 °C0-315 °C0-538 °CAt 100 °CAt 500 °C

AISI 316L Stainless Steel Pipe Tolerances

Nominal pipe size (NPS)

  • up to 4 = ± 0.79 mm | 5 thru 8 = + 1.58 mm / – 0.79 mm
  • 10 thru 18 = + 2.37 mm / – 0.79 mm | 20 thru 24 = + 3.18 mm / – 0.79 mm
Wall Thickness (WT)LengthWeight
All Diameters = – 12.5%

+ tolerance not specified

+ 6.40 mm / – 0 mmWeight = + 10% / – 1.5%