TORICH INTERNATIONAL LIMITED
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 20-30days upon products |
| Packaging Details | In bundles or in wooden boxes. |
| Application | Semiconductor |
| Outer diameter(round) | 30 - 325 mm, |
| Thickness | 2 - 50 mm, |
| Length | 6M or as requirement,As customer's require,8m,5.8m,2.5-8m |
| Technique | Cold Drawn,Hot Rolled,Cold Rolled,ERW,Hot Rolled/Cold Drawn |
| Grade | 316L 304L 317L 321 347 |
| Section shape | Round,Rectangular |
| Special pipe | Thick Wall Pipe,API Pipe,Precision steel tube,precision seamless pipe,cold drawn |
| Brand Name | TORICH |
| Model Number | Electropolished Stainless Steel Pipe |
| Certification | ISO9001 ISO 14001 TS16949 |
| Place of Origin | Zhejiang/China |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union | Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 20-30days upon products | Packaging Details | In bundles or in wooden boxes. |
| Application | Semiconductor | Outer diameter(round) | 30 - 325 mm, |
| Thickness | 2 - 50 mm, | Length | 6M or as requirement,As customer's require,8m,5.8m,2.5-8m |
| Technique | Cold Drawn,Hot Rolled,Cold Rolled,ERW,Hot Rolled/Cold Drawn | Grade | 316L 304L 317L 321 347 |
| Section shape | Round,Rectangular | Special pipe | Thick Wall Pipe,API Pipe,Precision steel tube,precision seamless pipe,cold drawn |
| Brand Name | TORICH | Model Number | Electropolished Stainless Steel Pipe |
| Certification | ISO9001 ISO 14001 TS16949 | Place of Origin | Zhejiang/China |
| High Light | Electropolished Stainless Steel Pipe ，316L Stainless Steel Precision Steel Tube ，Semiconductor Grade EP Pipe | ||
This product is a precision stainless steel pipe/tubing made from 316L austenitic stainless steel (low-carbon, Mo-alloyed) and finished by electropolishing (EP)—primarily on the internal wetted surface—to achieve an ultra-smooth, contamination-resistant surface for semiconductor high-purity and ultra-high-purity (HP/UHP) gas and chemical delivery lines.
Grade: 316L (UNS S31603 / EN 1.4404)
Manufacturing: Seamless or welded + cold worked (per project requirement); solution annealed / bright annealed available (typical for precision tubing)
Size range (typical): small-to-medium OD precision tubing/pipe; cut-to-length and coil/straight lengths available (per order)
Surface finish (ID, typical UHP requirement): Electropolished Ra ≤ 10 μin (0.25 μm); finer finishes may be available by agreement
Cleanliness & packaging: cleaned, capped, and packaged to reduce re-contamination risk for UHP service
Documentation (typical): MTR/CMTR, heat & lot traceability, CoC, and optional roughness test report (profilometer) per purchase order
Ultra-smooth wetted surface after EP for reduced particle adhesion and easier purge/cleaning
Enhanced corrosion resistance through a cleaner, more uniform passive surface layer (EP + passivation when specified)
Optimized for orbital welding and UHP fittings thanks to stable austenitic structure and consistent dimensional control (precision tubing practice)
Low-carbon 316L chemistry helps minimize sensitization risk and supports welded assemblies in corrosive media
1) “Will the ID surface finish really meet UHP expectations?”
Yes. We supply EP tubing with Ra targets aligned to common UHP practice (e.g., 10 μin / 0.25 μm max), and we can provide surface-roughness records when required.
2) “How do you control particles and re-contamination during shipping?”
We implement UHP cleaning and packaging practices (end-capping, protective bagging, controlled handling) to help keep the wetted surface clean from factory to installation.
3) “Is the material suitable for semiconductor chemical/gas distribution expectations?”
Semiconductor distribution systems commonly reference SEMI surface-condition concepts for wetted surfaces and stainless components used in chemical (gas/liquid) distribution in fabs. We can align supply to those requirements when specified.
4) “Do you offer chemistry options that improve weld quality and corrosion performance?”
For UHP systems, chemistry details (including low carbon and, when requested, controlled sulfur ranges) are often used to balance corrosion resistance with welding/processing performance. We can quote and supply accordingly with heat-level traceability.
5) “Can you prove compliance?”
We support full traceability (heat number → MTR), and can provide EN 10204 3.1 style documentation, plus optional inspection items (roughness, dimensional inspection, PMI) per PO.
| Grade (Common Name) | EN No. | C (max) | Si (max) | Mn (max) | P (max) | S (max) | Cr | Ni | Mo | N (max) | Ti / Nb (stabilizer) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 316L (UNS S31603) | 1.4404 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 16.5–18.5 | 10.0–13.0 | 2.00–2.50 | 0.11 | — |
| 304L (UNS S30403) | 1.4307 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 17.5–19.5 | 8.0–10.5 | — | 0.11 | — |
| 317L (UNS S31700) | 1.4438 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 17.5–19.5 | 13.0–16.0 | 3.00–4.00 | 0.11 | — |
| 321 (UNS S32100) | 1.4541 | 0.08 | 1.00 | 2.00 | 0.045 | 0.015 | 17.0–19.0 | 9.0–12.0 | — | — | Ti ≤ 5×C |
| 347 (UNS S34700) | 1.4550 | 0.08 | 1.00 | 2.00 | 0.045 | 0.015 | 17.0–19.0 | 9.0–12.0 | — | — | Nb (Cb) ≥ 10×C |
| Grade | EN No. | 0.2% Proof / Yield Rp0.2 (MPa, min) | Tensile Rm (MPa) | Elongation A5 (min) |
|---|---|---|---|---|
| 316L | 1.4404 | 200 | 500–700 | 40 / 30 |
| 304L | 1.4307 | 175 | 500–700 | 45 / 35 |
| 317L | 1.4438 | 200 | 500–700 | 40 / 30 |
| 321 | 1.4541 | 190 | 500–700 | 40 / 30 |
| 347 | 1.4550 | 205 | 510–740 | 40 / 30 |
ASTM / ASME (typical references): ASTM A269/A269M, ASTM A270, ASTM A312, ASTM A967
SEMI (typical references): SEMI F19, SEMI F37
EN (typical references): EN 10088 series, EN 10216-5, EN 10296-2
JIS (typical reference): JIS G3459
GB (typical references): GB/T 14976, GB/T 12771, GB/T 13296
GOST (typical references): GOST 9941, GOST 9940
Primary field: Semiconductor manufacturing (HP/UHP utilities and process distribution).
Typical uses include:
UHP specialty gas lines (distribution headers, tool hook-up, purge lines)
High-purity chemical delivery (wet benches, chemical distribution panels, point-of-use feeds)
DI water and process utility loops where surface cleanliness helps reduce contamination risk
Slurry and process fluid transfer where smooth wetted surfaces help with cleanability and stability
Interconnects to valves/fittings in gas cabinets, valve manifold boxes (VMB), and sub-fab distribution
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock,
it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
1997
Total Annual:
25000000-30000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
A Professional Steel Pipes Materials Inventor, Manufacturer And Solution Provider TORICH INTERNATIONAL LIMITED is a professional inventor, manufacturer, and solution provider of steel pipe materials, integrating production and international trade, specializing in various precision steel pipes. Esta... A Professional Steel Pipes Materials Inventor, Manufacturer And Solution Provider TORICH INTERNATIONAL LIMITED is a professional inventor, manufacturer, and solution provider of steel pipe materials, integrating production and international trade, specializing in various precision steel pipes. Esta...
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