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Stainless steel grades
Enquire for SS 316Ti pipe and tube by standard, dimensions and material certificate requirement. Include the delivery city for pricing.
Request a quoteTechnical reference
| Field | Order reference |
|---|---|
| Standard | A312 TP316Ti pipe or the nominated tubing standard |
| Product or route | Titanium-stabilised molybdenum-bearing stainless, UNS S31635 |
| Critical dimensions and fit | Resolve any 1.4571 material designation against the drawing and product standard |
| Supply enquiry | Confirm sizes, lengths, route, documentation and lead time for your order |
Selected ASME B36.19 dimensions. Schedule columns give nominal wall thickness. Theoretical inside diameter and mass use nominal dimensions, with a reference density of 8,000 kg/m³. Actual mass varies by grade and tolerances.
| NPS | OD (mm) | 10S wall (mm) | 40S wall (mm) | 80S wall (mm) | 40S ID (mm) | 40S kg/m |
|---|---|---|---|---|---|---|
| 1 | 33.40 | 2.77 | 3.38 | 4.55 | 26.64 | 2.55 |
| 2 | 60.33 | 2.77 | 3.91 | 5.54 | 52.51 | 5.54 |
| 3 | 88.90 | 3.05 | 5.49 | 7.62 | 77.92 | 11.51 |
| 4 | 114.30 | 3.05 | 6.02 | 8.56 | 102.26 | 16.38 |
| 6 | 168.28 | 3.40 | 7.11 | 10.97 | 154.06 | 28.80 |
Reference ASME B36.19 dimensional standard · Tonkin stainless pipe dimensional chart
For tubing, order by actual outside diameter and wall. Drawing example: 25 × 2 mm tube replacement geometry example.
Use the approved design code and service conditions. The applicable rating depends on material, temperature, minimum effective wall, joint details and the limits of the connected assembly. A schedule or a hydrostatic test result alone cannot establish an operating pressure.
Reference ASME process piping code B31.3
Selected chemistry by mass for the A312 pipe designations below. The ordered edition, full element limits and any applicable notes govern acceptance. A dash means the value is omitted here.
| Grade | UNS | C (%) | Cr (%) | Mo (%) | Grade feature |
|---|---|---|---|---|---|
| TP316Ti | S31635 | ≤0.08 | 16–18 | 2–3 | Titanium stabilised |
Reference ASTM A312/A312M scope · Centravis tubular product catalogue · Alleima high-temperature tubular grades
Selected minimum room-temperature tensile and yield strengths for A312 pipe. Elongation acceptance depends on the specimen orientation and applicable thickness basis. For tube orders, apply the nominated tube specification.
| Grade | Tensile minimum (MPa) | Yield minimum (MPa) |
|---|---|---|
| TP316Ti | 515 | 205 |
Reference ASTM A312/A312M scope · CTS A312 technical reference · Tioga A312 pipe grade reference
Match grade, titanium requirement and product specification on the MTC.
| When | What to check |
|---|---|
| Before ordering | Document the required test method, edition and any witness points |
| At delivery | Match the material report and heat or lot identification to the shipment |
316L uses a different approach to alloy selection.
For the enquiry, resolve any 1.4571 material designation against the drawing and product standard.
A312 TP316Ti pipe or the nominated tubing standard · 25 × 2 mm tube replacement geometry example. Add quantity, lengths, delivery city and the required reports.
Ordering guidance
If your drawing specifies 316Ti, identify it explicitly and provide the applicable product standard. Do not shorten it to 316 or treat the similar designation as confirmation of compliance.
For a repeat order, copy the original specification, size basis and manufacturing route from the approved material records. If changing mill or product form, confirm the certificate and any supplementary tests required for the new material.
Check pricing and availability →
Buyer’s guide
316Ti is the titanium-stabilised member of the molybdenum-bearing 316 family, identified as UNS S31635. Drawings may use the designation 1.4571. If the drawing uses one designation and the supplier offers another, compare the applicable product standards and grade documentation before treating them as equivalent.
A 316L tube with the same OD and wall may fit in the same assembly, but the grade and delivery condition remain different purchase requirements. For a repair or a repeat item, share the original material report and any welding or forming restrictions. If the project approves several options, request separate lines with the basis for each.
Send nominal size and schedule for pipe or actual OD and wall for tubing. Identify any critical fit against a tube sheet, sleeve or connection, and state whether cut length, end finish or bore measurements must be documented. Use the exact dimensional tolerances called out in the drawing.
For an imported component labelled 1.4571, share the original standard, drawing and certificate. Ask the offer to record the proposed grade and standard alongside the required actual dimensions rather than quoting against the alloy name alone.
Look for the ordered designation, applicable product specification, heat or lot identification and the results required by the purchase order.
Technical references Outokumpu grade reference · ASTM steel standards directory
Prepare your enquiry
| Item | What to send |
|---|---|
| Product details | 316Ti · product standard · dimensions · manufacturing route · certificate |
| Delivery | Quantity with units, delivery city and required date if known |
| Acceptance | Required certificates and inspection scope; attach the drawing revision where applicable |
UNS S31635 — Titanium-stabilised stainless steel in the 316 family.
Request the written designation and supporting certificate. Ask the project authority to confirm whether the proposed alternative is acceptable.
Technical reference: Grade designation reference
Project enquiries
Send your dimensions, quantities and delivery city. Include any inspection or material certificate requirements so they can be quoted against the same line items.
Request a quote → Call +91 99204 92715