316 316L 317L 904L SS Heat Exchanger Tubing High Corrosion Resistance Custom Sizes
Price:
Negotiable (Request a Quote)
MOQ:
100kg
Delivery Time:
15-25days
Brand:
Baosteel，TISCO
Product Description
High corrosion resistance tubing is specifically engineered for aggressive environments where standard stainless steel grades may fail. Manufactured from premium alloys, this tubing offers superior resistance to pitting, crevice corrosion, stress corrosion cracking (SCC), and general oxidation. It is ideal for chemical processing, marine, oil & gas, and other demanding applications.
Key Features
- Exceptional resistance to pitting and crevice corrosion
- High resistance to stress corrosion cracking (SCC)
- Excellent performance in acidic, chloride, and sour environments
- Suitable for high-temperature and high-pressure service
- Available in seamless or welded construction
- Long service life – reduced maintenance and replacement costs
Product Specifications
| Parameter | Details |
|---|---|
| Applicable Standards | ASTM A213, ASTM A269, ASTM B622, EN 10216-5, NACE MR0175 |
| Common Grades | 316 / 316L, 317L, 904L, 254SMO (S31254), Duplex 2205, Super Duplex 2507, Alloy 625, Alloy C-276 |
| OD Range | 6mm – 100mm (customizable) |
| Wall Thickness Range | 0.7mm – 8mm |
| Length | Up to 12m straight lengths, or coils |
| Construction Type | Seamless (SMLS) or Welded & Drawn (W&D) |
| Process | Cold drawn + Bright annealing / Solution annealing |
| Surface Finish | Bright annealed, pickled, or polished |
| Delivery Condition | Annealed (solution annealed for high alloys) |
Chemical Composition (Typical, %)
| Grade | Cr | Ni | Mo | N | C | Fe | Other |
|---|---|---|---|---|---|---|---|
| 316L | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | – | ≤0.03 | Balance | – |
| 904L | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 | – | ≤0.02 | Balance | Cu 1.0-2.0 |
| 254SMO (S31254) | 19.5-20.5 | 17.5-18.5 | 6.0-6.5 | 0.18-0.22 | ≤0.02 | Balance | Cu 0.5-1.0 |
| Duplex 2205 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 | ≤0.03 | Balance | – |
| Super Duplex 2507 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 | ≤0.03 | Balance | – |
| Alloy 625 | 20.0-23.0 | 58.0 min | 8.0-10.0 | – | ≤0.10 | ≤5.0 | Nb+Ta 3.15-4.15 |
| Alloy C-276 | 14.5-16.5 | Balance | 15.0-17.0 | – | ≤0.02 | 4.0-7.0 | W 3.0-4.5 |
Full mill test reports (MTR) available for all grades.
Mechanical Properties (Annealed Condition)
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRB/HB) |
|---|---|---|---|---|
| 316L | ≥485 | ≥170 | ≥35 | ≤90 HRB |
| 904L | ≥490 | ≥220 | ≥35 | ≤90 HRB |
| 254SMO | ≥650 | ≥300 | ≥35 | ≤100 HRB |
| Duplex 2205 | ≥620 | ≥450 | ≥25 | ≤293 HB |
| Super Duplex 2507 | ≥800 | ≥550 | ≥25 | ≤310 HB |
| Alloy 625 | ≥830 | ≥415 | ≥30 | ≤100 HRB |
| Alloy C-276 | ≥690 | ≥283 | ≥40 | ≤100 HRB |
Corrosion Resistance Comparison
| Grade | PREN* Value | Pitting Resistance | SCC Resistance | Crevice Corrosion | Suitable Environment | |
|---|---|---|---|---|---|---|
| 316L | 24-26 | Good | Moderate | Moderate | Mild chemical, fresh water | |
| 904L | 32-36 | Very Good | Good | Good | Seawater, sulfuric acid | |
| 254SMO | 42-45 | Excellent | Excellent | Excellent | Seawater, brackish water | |
| Duplex 2205 | 34-38 | Very Good | Very Good | Very Good | Chloride, sour service | |
| Super Duplex 2507 | ≥40 | Excellent | Excellent | Excellent | High chloride, subsea | |
| Alloy 625 | ≥45 | Excellent | Excellent | Excellent | Excellent | Extreme chemical, marine |
| Alloy C-276 | ≥65 | Superior | Superior | Superior | Superior | Acidic, oxidizing, reducing |
*PREN = Pitting Resistance Equivalent Number (Cr% + 3.3*Mo% + 16*N%) – higher is better*
Applications
High corrosion resistance tubing is essential in aggressive environments where standard stainless steel fails:
| Industry | Typical Uses | Recommended Grades |
|---|---|---|
| Chemical Processing | Reactors, heat exchangers, transfer lines | 904L, C-276, 254SMO |
| Oil & Gas (Upstream) | Downhole tubing, umbilical lines, wellhead controls | Duplex, 2507, 625 |
| Marine & Offshore | Seawater cooling, firewater systems, ballast lines | 254SMO, Duplex, Super Duplex |
| Desalination | High-pressure piping, evaporator tubes | 254SMO, Duplex |
| Pharmaceutical | High-purity systems, aggressive CIP/SIP lines | 316L, 904L |
| Pulp & Paper | Bleaching lines, digesters | 317L, 904L |
| Flue Gas Desulfurization (FGD) | Scrubber piping, slurry lines | C-276, 625 |
| Nuclear | Cooling systems, waste processing | Alloy 625, C-276 |
Why Choose High Corrosion Resistance Tubing?
| Advantage | Benefit |
|---|---|
| Extended service life | Reduced downtime and replacement costs |
| Lower risk of failure | Improved safety in critical applications |
| Wider chemical compatibility | One material for multiple aggressive media |
| High temperature capability | Suitable for hot corrosive environments |
| NACE MR0175 compliance | Approved for sour service (oil & gas) |
Contact Us
For samples, mill test reports (MTR), corrosion resistance charts, or a custom quote, please contact us.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shanxi Zhongcheng Metal Co., Ltd.
Location
Room 2, No. 221 Tianzhang Avenue, Fengdong New City, Xi'an, Shaanxi Province
Contact Person
Zhongcheng Metal