Shanxi Zhongcheng Metal Co., Ltd.
| Supply Ability | 5000 tons per Month |
| Packaging Details | Bundled with steel straps, end caps, waterproof wrapping; wooden crates or pallets for export |
| OD Range | 6mm - 610mm (1/8 inch - 24 inch) |
| Standard | ASTM A312, ASTM A790, EN 10216-5 |
| Surface Finish | Bright annealed, pickled, polished (180-400 grit) |
| PREN Value | 24-26 (316L), 32-36 (904L), 34-38 (2205) |
| Wall Thickness | 0.8mm - 40mm (SCH 5S - SCH XXS) |
| Length | Up to 12m fixed, or random lengths |
| Delivery Time | 7-10 days for stock sizes, 15-25 days for production |
| Material Grade | TP316L, TP904L, Duplex 2205 (UNS S32205) |
| Payment Terms | T/T,L/C,D/P,Western Union |
| Brand Name | Baosteel, TISCO |
| Model Number | SS-SMLS-CR-2205 |
| Place of Origin | China |
| Certification | ISO 9001, EN 10204 Type 3.1, NACE MR0175 |
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Product Specification
| Supply Ability | 5000 tons per Month | Packaging Details | Bundled with steel straps, end caps, waterproof wrapping; wooden crates or pallets for export |
| OD Range | 6mm - 610mm (1/8 inch - 24 inch) | Standard | ASTM A312, ASTM A790, EN 10216-5 |
| Surface Finish | Bright annealed, pickled, polished (180-400 grit) | PREN Value | 24-26 (316L), 32-36 (904L), 34-38 (2205) |
| Wall Thickness | 0.8mm - 40mm (SCH 5S - SCH XXS) | Length | Up to 12m fixed, or random lengths |
| Delivery Time | 7-10 days for stock sizes, 15-25 days for production | Material Grade | TP316L, TP904L, Duplex 2205 (UNS S32205) |
| Payment Terms | T/T,L/C,D/P,Western Union | Brand Name | Baosteel, TISCO |
| Model Number | SS-SMLS-CR-2205 | Place of Origin | China |
| Certification | ISO 9001, EN 10204 Type 3.1, NACE MR0175 | ||
| High Light | 316L stainless steel seamless pipe ，904L corrosion resistant steel pipe ，duplex 2205 chemical processing pipe | ||
Our corrosion resistant stainless steel seamless pipes are specifically manufactured for industries where standard carbon steel or lower-grade stainless steel cannot survive aggressive chemical environments. Available in ASTM A312 TP316L, TP904L, and Duplex UNS S32205 (2205), these pipes provide exceptional resistance to pitting, crevice corrosion, stress corrosion cracking (SCC), and intergranular attack across a wide range of temperatures, pH levels, and chloride concentrations.
| Parameter | Details |
|---|---|
| Material Grades | TP316L (UNS S31603), TP904L (UNS N08904), Duplex 2205 (UNS S32205) |
| Standards | ASTM A312, ASTM A790, EN 10216-5, NACE MR0175 |
| Outer Diameter Range | 6 mm - 610 mm (1/8 inch - 24 inch) |
| Wall Thickness | 0.8 mm - 40 mm (Schedule 5S to Schedule XXS) |
| Length | Fixed lengths up to 12m, or random lengths; coils available for small OD |
| Manufacturing Process | Cold drawn / Cold pilgered + Bright annealed |
| Surface Finish | Bright annealed, pickled, or polished (180, 320, 400 grit) |
| End Finish | Plain end, beveled end, threaded, or grooved |
| Corrosion Type | 316L | 904L | Duplex 2205 |
|---|---|---|---|
| Pitting (PREN) | 24-26 | 32-36 | 34-38 |
| Chloride SCC | Moderate (fails >60°C) | Good (resists up to 120°C) | Excellent (resists >150°C) |
| Crevice Corrosion | Moderate | Good | Very Good |
| Intergranular Attack | Low-carbon, resistant | Stabilized, resistant | Resistant (duplex structure) |
| Sulfuric Acid (dilute) | Limited | Excellent | Good |
| Seawater Service | Not recommended | Acceptable (<40°C) | Recommended (<40°C) |
Reactor piping, transfer lines, and heat exchanger connections in sulfuric acid, phosphoric acid, and mixed acid environments. 904L is the preferred grade for concentrated sulfuric acid service up to 98% at moderate temperatures. Duplex 2205 handles chloride-laden process streams where 316L would suffer SCC within months.
Seawater cooling lines, ballast piping, firewater ring mains, and topside process piping on offshore platforms and FPSO vessels. Duplex 2205 combines high strength (yield ≥450 MPa - roughly double that of 316L) with excellent seawater corrosion resistance, allowing thinner wall designs and reduced structural weight.
High-pressure brine piping, evaporator feed lines, and reject lines in both MSF (Multi-Stage Flash) and SWRO (Seawater Reverse Osmosis) facilities. 904L and 2205 are both widely specified, with 2205 increasingly preferred due to its higher strength-to-weight ratio and lower nickel content providing greater price stability.
316L remains the industry workhorse for WFI (Water for Injection) loops, CIP (Clean-in-Place) piping, and sterile transfer lines where the corrosion challenge is moderate but surface finish and cleanability are critical. All pipes undergo electropolishing to Ra ≤0.4 μm upon request.
Bleaching plant piping, digester blow lines, and chlorine dioxide handling systems. Both 904L and Duplex 2205 are specified where 316L has proven insufficient - particularly in chlorine dioxide stages where the oxidizing environment rapidly attacks lower-alloy stainless steels.
| Property | 316L | 904L | Duplex 2205 |
|---|---|---|---|
| Tensile Strength (MPa) | ≥485 | ≥490 | ≥620 |
| Yield Strength (MPa) | ≥170 | ≥220 | ≥450 |
| Elongation (%) | ≥35 | ≥35 | ≥25 |
| Hardness (HRB / HB) | ≤90 HRB | ≤90 HRB | ≤293 HB |
Need help selecting the right corrosion resistant pipe for your process? Send us your fluid chemistry, operating temperature, and pressure - our metallurgists will provide a recommendation within 24 hours.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
2010
Total Annual:
20000000-50000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
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