Stainless Steel 316 Pipes


Stainless Steel 316 pipes are used across heavy process plants where corrosion slowly builds up inside ordinary metals and later turns into leaks, shutdowns, or repair work that nobody planned for. These pipes handle harsh plant exposure daily. In real production lines, where heat changes quickly, chemical strength shifts during processing hours, and pressure loads rise and fall depending on plant demand, the pipe metal keeps its strength stable while the surface continues resisting chemical damage.


The material chemistry mainly revolves around iron, chromium, nickel, and molybdenum, and the molybdenum part plays a quiet but serious role because it helps the surface resist chloride attack and chemical salt damage next to normal environmental corrosion exposure. Chemistry balance matters more than people think. In coastal industries or high humidity plants, where pipelines compete for space around process tanks and exhaust ducting, Stainless Steel 316 keeps surface wear slower even during long exposure cycles.


Stainless Steel 316 Pipes

Inside operating factories, these pipes run through chemical transfer lines, marine piping layouts, food process plants, and pharmaceutical units where cleanliness and corrosion resistance must both stay reliable while production keeps running for long hours. Plants depend on this grade heavily. When heated chemicals, treated water, or cleaning fluids keep flowing through lines for extended shifts, the pipe wall holds strength and the inside surface stays process safe.


Supply normally covers many outside diameter ranges and wall thickness options depending on pressure class and system layout, and custom production is often required when final project drawings change late or when older plant piping is being replaced and space becomes tight. Custom supply happens often. Some projects need special cut lengths or tighter bend control when installation teams work inside already crowded pipe racks and structural frames.


Manufacturing usually involves hot forming followed by controlled finishing, and then solution annealing is carried out so internal stress drops while corrosion resistance improves for long term plant service under changing operating temperatures. Heat treatment changes pipe behaviour a lot. When systems move between shutdown cooling and full production heat load, properly processed pipes hold structure better instead of slowly weakening across service cycles.


Quality testing is done through chemical verification, strength testing, and surface inspection using ultrasonic scanning and visual checks so supplied pipes match order specification and client project approval before dispatch. Quality checks must stay strict. Some buyers also request third party inspection when pipes are planned for critical plant sections where downtime can affect full production blocks and maintenance cost planning.


During shipping, pipes are packed using wooden pallets, protective wrapping, or export boxing depending on shipment route risk and handling conditions during loading, port transfer, and inland movement through different climate zones. Transit protection is extremely important. Proper packing helps reduce moisture exposure, surface dents, and contamination during long transport cycles where handling frequency stays high.


From a buying point of view, project teams often track SS 316 pipe pricing trends next to sheet and plate cost movement when planning bulk procurement budgets, especially across Mumbai industrial supply markets where project demand can shift suddenly. Cost planning directly affects purchase timing. When correct material is selected early during plant design stages, lifecycle cost stays controlled and maintenance planning stays more predictable over time.


Stainless Steel 316 pipes remain a trusted industrial piping material where corrosion resistance, mechanical strength, and long service life must all stay balanced inside real operating plant environments.

Specification of 316L Stainless Steel Pipes

Specifications ASTM A 312 ASME SA 312 / ASTM A 358 ASME SA 358
Dimensions ASTM, ASME and API
SS 316 – 316L Pipes 1/2″ NB – 16″ NB
ERW 316 – 316L Pipes 1/2″ NB – 24″ NB
EFW 316 – 316L Pipes 6″ NB – 100″ NB
Size 1/8″NB TO 30″NB IN
Specialized in Large Diameter Size
Schedule SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type Seamless / ERW / Welded / Fabricated / LSAW Pipes
Form Round, Square, Rectangular, Hydraulic Etc
Length Single Random, Double Random & Cut Length.
End Plain End, Beveled End, Treaded

SS 316 Pipe Price Per Kg

Price List
Size Schedule Price in USD $
8″ SCH40S USD $ 468.15
5″ USD $ 235.97
1″ USD $ 28.18
4″ USD $ 169.49
2-1/2″ USD $ 89.58
3″ USD $ 116.65
6″ USD $ 301.56
2″ USD $ 57.42

316 Stainless Steel Pipe Dimension Chart

Nominal Bore Outside Diameter Sch-5S Rates (Price) Sch-10S Rates (Price) Sch-40S Rates (Price)
mm INCH mm Wt mm Weight (Kg/mt) Rs/Kg Wt mm Weight (Kg/mt) Rs/Kg Wt mm Weight (Kg/mt) Rs/Kg
3 1/8 10.3 1.24 0.276 288.90 1.24 0.28 321.00 1.73 0.37 343.47
6 1/4 13.7 1.24 0.390 288.90 1.65 0.49 321.00 2.24 0.631 343.47
10 3/8 17.1 1.24 0.490 278.20 1.65 0.63 267.50 2.31 0.845 286.23
15 1/2 21.3 1.65 0.800 262.15 2.11 1.00 283.55 2.77 1.27 303.40
20 3/4 26.7 1.65 1.03 256.80 2.11 1.28 278.20 2.87 1.68 297.67
25 1 33.4 1.65 1.30 256.80 2.77 2.09 278.20 3.38 2.50 297.67
32 1 1/4 42.2 1.65 1.65 267.50 2.77 2.70 278.20 3.56 3.38 297.67
40 1 1/2 48.3 1.65 1.91 267.50 2.77 3.11 278.20 3.68 4.05 297.67
50 2 60.3 1.65 2.40 267.50 2.77 3.93 278.20 3.91 5.44 297.67
65 2 1/2 73.0 2.11 3.69 267.50 3.05 5.26 278.20 5.16 8.63 297.67
80 3 88.9 2.11 4.51 267.50 3.05 6.45 278.20 5.49 11.30 297.67
100 4 114.3 2.11 5.84 267.50 3.05 8.36 278.20 6.02 16.07 297.67
125 5 141.3 2.77 9.47 278.20 3.40 11.57 283.55 6.55 21.8 303.40
150 6 168.3 2.77 11.32 278.20 3.40 13.84 283.55 7.11 28.3 303.40
200 8 219.1 2.77 14.79 288.90 3.76 19.96 288.90 8.18 42.6 309.12
250 10 273.1 3.40 22.63 294.25 4.19 27.78 299.60 9.27 60.5 320.57
300 12 323.9 3.96 31.25 299.60 4.57 36.00 299.60 9.52 73.88 320.57
350 14 355.6 3.96 34.36 4.78 41.3 299.60 11.13 94.59 320.6
400 16 406.4 4.19 41.56 4.78 47.29 299.60 12.7 123.30 320.57
450 18 457.2 4.19 46.80 4.78 53.42 299.60 14.27 155.80 320.57
500 20 508.0 4.78 59.25 5.54 68.71 299.60 15.09 183.42 320.57
600 24 609.6 5.54 82.47 6.35 94.45 299.60 17.48 255.41 320.57
MM INCH SCH 5 SCH 10 SCH 40
15 1/2″ 230 297 371
20 3/4″ 302 374 470
25 1″ 352 555 665
32 1.1/4″ 491 738 866
40 1.1/2″ 542 851 1050
50 2″ 680 1071 1450
65 2.1/2″ 995 1547 2451
80 3″ 1153 1875 3110
100 4″ 1490 2390 4150
125 5″ 2750 3298 5980
150 6″ 3110 4081 7439
200 8″ 4496 5805 11520
250 10″ 6800 8495 16196
300 12″ 9041 10473 20410
350 14″ 10940 14960 23910
400 16″ 12002 18310 31101
450 18″ 13802 20682 38745

UNS S31600 Square Pipe Surface Finish

No.4 2B
Cold Drawn 180 grit polished
600 grit Mirror
BA polishing Bright Annealed
400 grit 320 grit
Matt finish Hairline
Solution annealed Annealed & Pickled

SS 316L Pipes Round Pipe Weight Chart

Nominal Size Wall Thickness Weight Weight OD
in mm kg/Mtr Lb/ft in mm
1 1/2″ 0.145 3.683 4.048 2.718 1.900 48
30″ 0.250 6.350 118.318 79.433 30.000 762
2″ 0.154 3.912 5.441 3.653 2.375 60
14″ 0.188 4.775 41.308 27.732 14.000 356
2 1/2″ 0.203 5.516 8.629 5.793 2.875 73
4″ 0.237 6.020 16.073 10.790 4.500 114
12″ 0.188 4.775 37.570 25.222 12.750 324
6″ 0.188 4.775 19.252 12.924 6.625 168
48″ 0.375 9.525 284.112 190.738 48.000 1219
8″ 0.188 4.775 25.233 16.940 8.625 219
42″ 0.312 7.925 206.914 138.911 42.000 1067
3″ 0.216 5.486 11.284 7.576 3.500 89
24″ 0.250 6.350 94.456 63.413 24.000 610
1/2″ 0.109 2.769 1.268 0.851 0.840 21
18″ 0.219 5.563 61.948 41.588 18.000 457
3/4″ 0.113 2.870 1.684 1.131 1.050 27
20″ 0.250 6.350 78.547 52.733 20.000 508
1″ 0.133 3.378 2.501 1.679 1.315 33
36″ 0.250 6.350 142.180 95.453 36.000 914
1 1/4″ 0.140 3.556 3.385 2.273 1.660 42
16” 0.188 4.775 47.290 21.748 16.000 406
10″ 0.188 4.775 31.588 21.207 10.750 273

SS 316L Pipes Round Pipe Weight Chart

Stainless Steel 316 Pipes OD ASTM A312 TP316 Pipes Tolerance
4 to 35mm +/- 0.08mm
35 to 38mm +/- 0.15mm
38 to 60mm +/- 0.20mm
60 and above +/- 0.25mm

Common Types of SS 316 Pipe

Stainless Steel 316 Seamless Pipe

SS 316 Welded Pipe

UNS S31600 ERW Pipe

SUS 316 Round Pipe

AISI 316 Square Pipe

INOX 316 Rectangular Pipe

UNS S31600 EFW Pipe

SUS 316 Polished Pipe


Leading Stainless Steel 316L Pipe Suppliers in Mumbai, Delivering Durable, Corrosion-resistant Pipes for Wide Industrial Needs

Contact Preston Pipes and Alloys for Best Offer & Competitive Quotation of SUS 316 Round Pipe

AISI 316L Stainless Steel Pipe Testing

Testing Method Type
Hardness Testing DT
Tensile Testing
Impact Testing
Metallographic Examination
Flaw Detection via Sectioning
Ultrasonic Testing (UT) NDT
Radiographic Testing (RT)
Visual Inspection (VT)
Eddy Current Testing (ET)
Magnetic Particle Testing (MPT)

316 Stainless Steel Round Pipe Mechanical Property

Material Temperature Heat Tensile Strength Yield Strength Elongation %, Min
Min. Treatment Ksi (MPa), Min. Ksi (MPa), Min.
º F(º C)      
TP316 1900 (1040) Solution 75(515) 30(205) 35

SS UNS S31603 Rectangular Pipe Chemical Properties

SSL 316 PIPE C Si S P Ni Cr Mn
TP316 0.08 1 0.03 0.045 8.0-11.0 18.0-20.0 2

Physical Property of WNR 1.4401 Round Pipe

Property 316 Stainless Steel Pipe
Density 8.00 g/cm³
Electrical Resistivity 0.72 µΩ·m
Coefficient of Thermal Expansion 16.0 µm/m·K
Melting Point 1375 to 1400°C (2500 to 2550°F)
Specific Heat 500 J/kg·K at 25°C
Poisson’s Ratio 0.3
Thermal Conductivity 16.3 W/m·K at 100°C
Modulus of Elasticity 193 GPa

Industrial Application of Stainless Steel 316 Pipes



Frequently Asked Questions

These pipes contain molybdenum. This extra ingredient stops salt and chloride from eating through the metal. It prevents the tiny holes and rust that ruin other types of steel in sea air.

Molybdenum makes the steel much tougher against chemical attacks. It allows the pipes to work safely in acidic or salty settings. This helps the pipes last longer without leaking or breaking down.

The food, chemical, and medicine industries use these pipes most often. They are also popular for oil rigs, boat building, and water treatment plants. Any business dealing with harsh liquids needs them.

Both look similar, but 316 is much better at fighting rust. SS 304 can fail when exposed to salt or heavy chemicals. SS 316 stays strong and clean in those same conditions.

Suppliers usually follow ASTM A312 or ASME SA312 standards. These rules ensure the pipes have the right thickness and chemical mix. Most pipes also come with Mill Test Certificates for proof of quality.