TP316L GRADE STAINLESS STEEL SEAMLESS PIPE
Introduction
TP316L is a low-carbon variant of austenitic stainless steel (316L grade) commonly used in tubing and piping systems. It contains 16-18% chromium, 10-14% nickel, 2-3% molybdenum, and a maximum 0.035% carbon, enhancing corrosion resistance—particularly against chlorides and acids.
Key Features
Enhanced Corrosion Resistance: Superior resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) due to 2-3% molybdenum addition.
Excellent Weldability & Formability: Suitable for welding without post-weld heat treatment; retains corrosion resistance in welded zones.
Hygienic & Non-Reactive: Smooth surface resists bacterial growth, ideal for food processing, pharmaceuticals, and medical devices.
Standards Compliance: Meets ASTM A312 (pipes), ASTM A269 (tubing), and ASME SA-213 (boiler applications).
Why Choose TP316L Stainless Steel Pipe?
Superior Chloride Resistance: Molybdenum (Mo) content provides unmatched protection against pitting/crevice corrosion in saltwater or de-icing salt exposure, outperforming 304/304L.
Acid and Chemical Compatibility: Ideal for handling sulfuric, acetic, and phosphoric acids in industrial processes.
Durability in Harsh Environments: Maintains structural integrity in coastal, marine, or high-humidity settings with minimal maintenance.
Hygienic and Non-Reactive: Meets FDA, EU, and ASTM standards for food, beverage, and pharmaceutical hygiene.
Long-Term Cost Savings: Reduced downtime and replacement costs due to extended service life in corrosive conditions.
Certified Performance: Complies with ASTM A312, A358, and ASME SA-312 for pressure piping applications.
Example Use Case
A coastal power plant replaced carbon steel cooling pipes with 316L stainless steel pipes, eliminating chloride-induced corrosion failures and cutting annual maintenance costs by 60%.
Material Specification
Standard: ASTM A312/A312M
O.D: 1/8" NB TO 32" NB , (10.29MM-812.80MM) ,(Customization Available)
W.T: SCH 10S, SCH 40S, SCH 80S, SCH160, SCH XXS (Customization Available)
Application: Chemical and Petrochemical Industry
Pharmaceutical and Biotechnology
Food and Beverage Industry
Marine and Offshore Engineering
Medical Devices and Implants
Energy and Power Generation
Water Treatment and Desalination
Architectural and Decorative Applications
End: Plain End, Beveled End, Threaded
Processing: Cut-to-length;Polishing.
Inspection:
100% PMI TESTED
EN10204.3.1B MILL TEST CERTIFICATE
THIRD PARTY INSPECTION ACCEPTED
Delivery Condition: Cold Drawn, Annealed and Pickled/ Polished /Bright Annealed/ Sand blasting/ Shot Blasting.
Marking: All SS SMLS Pipes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or as per the customer’s request)
Packing: Packed in Wooden Boxes, plywood cases, Steel Strips Bundled, or as per Customers Requests
Specials: Sizes and Specifications other than above can be customized on request.
Specification parameters
TP316L chemical composition
|
HEAT NO. |
CHEMICAL COMPOSITION (%) |
||||||||
|
C |
Mn |
P |
S |
Si |
Ni |
Cr |
Mo |
||
|
STAND. |
MIN. |
10.00 |
16.00 |
2.0 |
|||||
|
MAX. |
0.035 |
2.00 |
0.045 |
0.030 |
1.00 |
14.00 |
18.00 |
3.0 |
|
TP316L Mechanical Properties
|
Mechanical Properties |
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|
Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness |
|
|
Rockwell B (HR B) |
Brinell (HB) |
||||
|
TP316L |
485 |
170 |
35 |
95 |
220 |
Equivalent Grades - (ASTM A312 TP316L Equivalent Grades)
| ASTM A312 TP316L Equivalent Grades | |||||||
| USA (ASTM / AISI) | Germany (DIN, WNr) | Japan (JIS) | France (AFNOR) | England (BS) | Euronorms (EN) | China (GB) | International (ISO) |
| TP316L
316L S31603 |
1.4404 | SUS316L | Z2CND17-12 | 316S11 | X2CrNiMo17-12-2 | 022Cr17Ni12Mo2 | X2CrNiMo17-12-2 S31603 |
ASTM A312/A312M Standard Cold Machining Size Deviation Permitted
|
ASTM A312/A312M-09 Standard Permitted Tolerance of WT and OD |
|||||
|
Nominal Outside Diameter |
Allowable daviation |
Nominal wall thickness |
Allowable deviation |
||
|
1/8”—1 1/2“ |
(10.29—48.26) |
+0.4 -0.8 |
1/8”—1 1/2“ |
(10.29-73.03) all of t |
+20 -12.5 |
|
>1 1/2“—4” |
(48.26—114.3) |
±0.8 |
3“—18” |
(88.9-457.2) t/D=5% |
+22.5 -12.5 |
|
>4”—8" |
(114.3—219.08) |
+1.6 -0.8 |
3“—18” |
(88.9-457.2) t/D>5% |
+15 -12.5 |
|
>8“—18" |
(219.08—457.2) |
+2.4 -0.8 |
≥20" |
=508 t of wld pipe |
+17.5 -12.5 |
|
>18”—26“ |
(457.2—660.4) |
+3.2 -0.8 |
≥20" |
=508 t/D=5% |
+22.5 -12.5 |
|
>26”—34” |
(660.4—863.6) |
+4.0 -0.8 |
≥20" |
=508 t/D>5% |
+15 -12.5 |
|
>34“—48" |
(863.6—1219.2) |
+4.8 -0.8 |
|
|
|
|
Thin wall pipe (t/D=3%) ovality condition: Any cross section in a steel pipe Dmax Dmin=1.5%nominal,and(Dmax Dmin)/ 2 conforms to the stipulated diameter tolerance range. |
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Comparison Table Of American Standard Dimensions - (ANSI B36.19&ANSI B36.10)
| OD DN | IN | OD MM | ANSI B36.19 | ANSI B36.10 | ||||||||||||||||
| Nominal diameter in inches | ||||||||||||||||||||
| 5s | 10s | Sched.40s | Sched.40 | Sched.80s | Sched.80 | 10 | 20 | 30 | Standard | |||||||||||
| mm | Kg/m | mm | Kg/m | mm | Kg/m | mm | mm | Kg/m | mm | mm | Kg/m | mm | Kg/m | mm | Kg/m | mm | Kg/m | |||
| 6 | 1/8" | 10.29 | - | - | 1.24 | 0.281 | 1.73 | 371 | 1.73 | 2.41 | 0.467 | 2.41 | - | - | - | - | - | - | 1.73 | 0.371 |
| 8 | 1/4" | 13.72 | - | - | 1.65 | 0.499 | 2.24 | 0.644 | 2 | 3.02 | 0.809 | 3.02 | - | - | - | - | - | - | 2.24 | 0.644 |
| 10 | 3/8" | 17.14 | - | - | 1.65 | 0.64 | 2.31 | 0.858 | 2.31 | 3.2 | 1.118 | 3.2 | - | - | - | - | - | - | 2.31 | 0.858 |
| 15 | 1/2" | 21.34 | 1.65 | 0.814 | 2.11 | 1.016 | 2.77 | 1.26 | 2.77 | 3.73 | 1.62 | 3.73 | - | - | - | - | - | - | 2.77 | 1.26 |
| 20 | 3/4" | 26.67 | 1.65 | 1.034 | 2.11 | 1.298 | 2.87 | 1.68 | 2.87 | 3.91 | 2.19 | 3.91 | - | - | - | - | - | - | 2.87 | 1.68 |
| 25 | 1" | 33.4 | 1.65 | 1.312 | 2.77 | 2.125 | 3.38 | 2.5 | 3.38 | 4.55 | 3.23 | 4.55 | - | - | - | - | - | - | 3.36 | 2.5 |
| 32 | 1 1/4" | 42.16 | 1.65 | 1.674 | 2.77 | 2.732 | 3.56 | 3.38 | 3.56 | 4.85 | 4.46 | 4.85 | - | - | - | - | - | - | 3.56 | 3.38 |
| 40 | 1 1/2" | 48.26 | 1.65 | 1.926 | 2.77 | 3.155 | 3.68 | 4.05 | 3.68 | 5.08 | 5.4 | 5.08 | - | - | - | - | - | - | 3.68 | 4.05 |
| 50 | 2" | 60.32 | 1.65 | 2.424 | 2.77 | 3.992 | 3.91 | 5.43 | 3.91 | 5.54 | 7.47 | 5.54 | - | - | - | - | - | - | 3.91 | 5.43 |
| 65 | 2 1/2" | 73.02 | 2.11 | 3.747 | 3.05 | 5.345 | 5.16 | 8.62 | 5.16 | 7.01 | 11.4 | 7.01 | - | - | - | - | - | - | 5.16 | 8.62 |
| 80 | 3" | 88.9 | 2.11 | 4.585 | 3.05 | 6.557 | 5.49 | 11.28 | 5.49 | 7.62 | 15.25 | 7.62 | - | - | - | - | - | - | 5.49 | 11.28 |
| 90 | 3 1/2" | 101.6 | 2.11 | 5.272 | 3.05 | 7.526 | 5.74 | 13.56 | 5.74 | 8.08 | 18.62 | 8.08 | - | - | - | - | - | - | 5.74 | 13.56 |
| 100 | 4" | 114.3 | 2.11 | 5.945 | 3.05 | 8.496 | 6.02 | 16.06 | 6.02 | 8.56 | 22.29 | 8.56 | - | - | - | - | - | - | 6.02 | 16.06 |
| 125 | 5" | 141.3 | 2.77 | 9.639 | 3.4 | 11.74 | 6.55 | 21.76 | 6.55 | 9.52 | 30.92 | 9.52 | - | - | - | - | - | - | 6.55 | 21.76 |
| 150 | 6" | 168.28 | 2.77 | 11.514 | 3.4 | 14.037 | 7.11 | 28.23 | 7.11 | 10.97 | 42.52 | 10.97 | - | - | - | - | - | - | 7.11 | 28.23 |
| 200 | 8" | 219.08 | 2.77 | 15.049 | 3.76 | 20.334 | 8.18 | 42.49 | 8.18 | 12.7 | 64.57 | 12.7 | - | - | 6.35 | 33.28 | 7.04 | 36.8 | 8.18 | 42.4 |
| 250 | 10" | 273.05 | 3.4 | 23.028 | 4.19 | 28.29 | 9.27 | 60.24 | 9.27 | 12.7 | 81.46 | 15.09 | - | - | 6.35 | 41.7 | 7.8 | 51 | 9.27 | 60.24 |
| 300 | 12" | 323.85 | 3.96 | 31.806 | 4.57 | 36.633 | 9.52 | 73.76 | 10.31 | 12.7 | 97.36 | 17.48 | - | - | 6.35 | 49.68 | 8.38 | 65.14 | 9.52 | 73.76 |
| 350 | 14" | 355.6 | 3.98 | 34.99 | 4.78 | 42.102 | 9.52 | - | 11.13 | - | - | 19.05 | 6.35 | 54.63 | 7.92 | 67.98 | 9.52 | 81.21 | 9.52 | 81.21 |
| 400 | 16" | 406.4 | 4.19 | 42.35 | 4.78 | 48.22 | 9.52 | - | 12.7 | - | - | 21.44 | 6.35 | 62.58 | 7.92 | 77.9 | 9.52 | 93.13 | 9.52 | 93.18 |
| 450 | 18" | 457.2 | 4.19 | 47.7 | 4.78 | 54.3 | 9.52 | - | 14.27 | - | - | 23.82 | 6.35 | 70.5 | 7.92 | 87.8 | 11.13 | 122.12 | 9.52 | 105.05 |
| 500 | 20" | 508 | 4.77 | 60.32 | 5.54 | 69.766 | 9.52 | - | 15.09 | - | - | 26.19 | 6.35 | 78.47 | 9.52 | 116.97 | 12.7 | 155 | 9.52 | 116.97 |
| 550 | 22" | 558.8 | 4.77 | - | 5.54 | - | 9.52 | - | - | - | - | 28.58 | 6.35 | 86.42 | 9.52 | 128.89 | 12.7 | 170.86 | 9.52 | 128.89 |
| 600 | 24" | 609.6 | 5.54 | 84.1 | 6.35 | 96.215 | 9.52 | - | 17.48 | - | - | 30.96 | 6.35 | 96.215 | 9.52 | 140.8 | 14.7 | 209.54 | 9.52 | 140.81 |
| 650 | 26" | 660.4 | - | - | - | - | 9.52 | - | - | - | - | - | 7.92 | 127.58 | 12.7 | 202.65 | - | - | 9.52 | 152.73 |
| 700 | 28" | 711.2 | - | - | - | - | 9.52 | - | - | - | - | - | 7.92 | 137.52 | 12.7 | 218.54 | 15.88 | 271.94 | 9.52 | 164.65 |
| 750 | 30" | 762 | 6.35 | 120.59 | 7.92 | 147.45 | 9.52 | - | - | - | - | - | 7.92 | 147.45 | 12.7 | 234.44 | 15.88 | 291.81 | 9.52 | 176.57 |
| 800 | 32" | 812 | - | - | - | - | 9.52 | - | 17.48 | - | - | - | 7.92 | 157.39 | 12.7 | 250.33 | 15.88 | 311.67 | 9.52 | 188.5 |
| 850 | 34" | 863.6 | - | - | - | - | 9.52 | - | 17.48 | - | - | - | 7.92 | 167.32 | 12.7 | 266.22 | 15.88 | 331.54 | 9.52 | 200.42 |
| 900 | 36" | 914.4 | - | - | - | - | 9.52 | - | 19.05 | - | - | - | 7.92 | 177.26 | 12.7 | 282.18 | 15.88 | 351.41 | 9.52 | 212.34 |