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TP316Ti Stainless Steel Seamless Pipe - Quality China Suppliers & Factory Stock for Immediate Shipment
Introduction
ASTM A312 TP316Ti seamless pipes are designed for extreme applications requiring superior resistance to intergranular corrosion and elevated temperatures. With the addition of titanium (Ti) stabilization, this advanced alloy prevents carbide precipitation during welding or prolonged high-heat exposure, ensuring unmatched longevity in aggressive conditions.
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
Titanium-Stabilized Durability
Ti minimizes sensitization risks, outperforming standard 316 in welded or cyclic thermal processes (up to 800°C / 1472°F).
Enhanced Corrosion Resistance
16-18% chromium, 10-14% nickel, and 2-3% molybdenum combat chlorides, sulfuric acid, and marine environments.
High Mechanical Strength
Tensile strength ≥515 MPa, yield strength ≥205 MPa, ideal for high-pressure systems.
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)
End: Plain End, Beveled End, Threaded
Processing: Cut-to-length, Polishing
Marking: Standard, Grade, OD, Thickness, Length, Heat No. (Or as per customer’s request)
Packing: Wooden Boxes, Plywood Cases, Steel Strips Bundled, or Customer Request
Specials: Sizes and Specifications other than above can be customized on request
Applications
- Chemical Industries
- Thermal & Nuclear Power Plants
- Fertilizer Plant
- Aerospace
- Food & Dairy Plants
- Paper Industries
- Oil & Gas Exploration
- Desalination Plant
- Pharmaceutical Plant
Inspection & Delivery Condition
- 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.
Specification Parameters
TP316Ti Chemical Composition
| HEAT NO. | CHEMICAL COMPOSITION (%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| C | Mn | P | S | Si | Ni | Cr | Mo | ||
| STAND. | MIN. | - | - | - | - | - | 10.00 | 16.00 | 2.00 |
| MAX. | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 14.00 | 18.00 | 3.00 | |
TP316Ti Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) | Brinell (HB) | ||||
| TP316Ti | 515 | 205 | 35 | 90 | 187 |
ASTM A312 TP316Ti Equivalent Grades
| ISO | EN (Europe) | DIN (Germany) | JIS (Japan) | GB (China) | IS (India) | UNS (USA) |
|---|---|---|---|---|---|---|
| X6CrNiMoTi17-12-2 (ISO 15510) |
1.4571 (EN 10088-2) |
X6CrNiMoTi17-12-2 (DIN 17440) |
SUS 316Ti (JIS G3459) |
06Cr17Ni12Mo2Ti (GB/T 14976) |
06Cr17Ni12Mo2Ti (IS 5528) |
S31635 |
ASTM A312/A312M Standard Cold Machining Size Deviation Permitted (Tolerance of WT and OD)
| Nominal Outside Diameter | Allowable Deviation | Nominal Wall Thickness | Allowable Deviation | ||
|---|---|---|---|---|---|
| 1/8" — 1 1/2" | (10.29 — 48.26 mm) | +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 mm) | ±0.8 | 3" — 18" | (88.9 - 457.2) t/D=5% | +22.5%, -12.5% |
| >4" — 8" | (114.3 — 219.08 mm) | +1.6, -0.8 | 3" — 18" | (88.9 - 457.2) t/D>5% | +15%, -12.5% |
| >8" — 18" | (219.08 — 457.2 mm) | +2.4, -0.8 | ≥20" | =508 t of wld pipe | +17.5%, -12.5% |
| >18" — 26" | (457.2 — 660.4 mm) | +3.2, -0.8 | ≥20" | =508 t/D=5% | +22.5%, -12.5% |
| >26" — 34" | (660.4 — 863.6 mm) | +4.0, -0.8 | ≥20" | =508 t/D>5% | +15%, -12.5% |
| >34" — 48" | (863.6 — 1219.2 mm) | +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.
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 |
Frequently Asked Questions (FAQ)
What is ASTM A312 TP316Ti stainless steel pipe?
ASTM A312 TP316Ti is a titanium-stabilized austenitic stainless steel seamless pipe designed for high-temperature service and general corrosive environments, effectively preventing intergranular corrosion after welding.
Why is titanium added to TP316Ti stainless steel?
Titanium is added to stabilize the structure against chromium carbide precipitation during welding or thermal exposure (up to 800°C / 1472°F), maintaining structural integrity and corrosion resistance.
What are the mechanical properties of ASTM A312 TP316Ti?
TP316Ti provides a minimum tensile strength of 515 MPa, a minimum 0.2% proof yield strength of 205 MPa, a minimum elongation of 35%, and a maximum hardness of 90 HRB (187 HB).
What are the international equivalent grades for TP316Ti?
Equivalent grades include UNS S31635 (USA), EN 1.4571 (Europe), DIN X6CrNiMoTi17-12-2 (Germany), JIS SUS 316Ti (Japan), and GB 06Cr17Ni12Mo2Ti (China).
What quality inspection standards are applied to TP316Ti pipes?
Pipes undergo 100% PMI testing, come with an EN10204 3.1B Mill Test Certificate, and support third-party inspections under ASTM A312/A312M specifications.
Which industries primarily use ASTM A312 TP316Ti pipes?
They are widely used in chemical processing, thermal & nuclear power plants, oil & gas exploration, aerospace, fertilizer plants, pharmaceutical facilities, and desalination plants.