TOBO STEEL GROUP CHINA
| Wall Thickness | SCH5S, SCH10S, SCH40S, SCH80S, SCH160, STD, XS |
| Delivery Time | 5-7 working days for stock, 15-25 days for production |
| Supply Ability | 10000 Pieces per Month |
| Material Grade | ASTM A403 WP316L / UNS S31603 |
| Application | Chemical Processing, Marine, Pharmaceutical, Offshore |
| Size Range | 1/2" - 48" (DN15 - DN1200) |
| Packaging Details | Seaworthy wooden cases with plywood or pallet, bubble wrap protection |
| Type | Equal Tee / Reducing Tee |
| Heat Treatment | Solution Annealed at 1040-1120°C, Water Quenched |
| Corrosion Resistance | Intergranular Corrosion Resistant per ASTM A262 Practice E |
| Product Name | Solution Annealed Corrosion Resistant Stainless Steel Tee |
| Payment Terms | T/T,L/C,Western Union |
| Place of Origin | Zhejiang, China |
| Model Number | SA-TEE-WP316L |
| Certification | ISO 9001:2015, PED 2014/68/EU |
| Brand Name | WNRLN |
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Product Specification
| Wall Thickness | SCH5S, SCH10S, SCH40S, SCH80S, SCH160, STD, XS | Delivery Time | 5-7 working days for stock, 15-25 days for production |
| Supply Ability | 10000 Pieces per Month | Material Grade | ASTM A403 WP316L / UNS S31603 |
| Application | Chemical Processing, Marine, Pharmaceutical, Offshore | Size Range | 1/2" - 48" (DN15 - DN1200) |
| Packaging Details | Seaworthy wooden cases with plywood or pallet, bubble wrap protection | Type | Equal Tee / Reducing Tee |
| Heat Treatment | Solution Annealed at 1040-1120°C, Water Quenched | Corrosion Resistance | Intergranular Corrosion Resistant per ASTM A262 Practice E |
| Product Name | Solution Annealed Corrosion Resistant Stainless Steel Tee | Payment Terms | T/T,L/C,Western Union |
| Place of Origin | Zhejiang, China | Model Number | SA-TEE-WP316L |
| Certification | ISO 9001:2015, PED 2014/68/EU | Brand Name | WNRLN |
| High Light | Solution Annealed Tee Fitting ，Corrosion Resistant Stainless Tee ，WP316L Butt Weld Tee | ||
The Solution Annealed Corrosion Resistant Stainless Steel Butt Weld Tee is precision-engineered from ASTM A403 Grade WP316L stainless steel, featuring a complete solution annealing heat treatment process. This critical thermal processing dissolves chromium carbides precipitated at grain boundaries, restoring full intergranular corrosion resistance.
The WP316L low-carbon grade with 2.0-3.0% molybdenum content provides superior pitting resistance in chloride environments, making this butt weld tee ideal for chemical processing, marine, and pharmaceutical applications where both mechanical integrity and corrosion resistance are paramount.
Each fitting undergoes solution annealing at 1040-1120°C followed by rapid quenching to lock the homogeneous austenitic microstructure. The result is a tee fitting with enhanced ductility, stress corrosion cracking resistance, and consistent performance across the weld zone and parent metal.
| Material Grade | ASTM A403 WP316L / UNS S31603 / 1.4404 |
| Heat Treatment | Solution Annealed at 1040-1120°C, Water Quenched |
| Size Range | 1/2" - 48" (DN15 - DN1200) |
| Wall Thickness | SCH5S, SCH10S, SCH40S, SCH80S, SCH160, STD, XS |
| Type | Equal Tee / Reducing Tee / Straight Tee |
| Standard | ASME B16.9, ASTM A403, MSS SP-43 |
| End Connection | Bevel End for Butt Welding per ASME B16.25 |
| Corrosion Resistance | Intergranular Corrosion Test per ASTM A262 Practice E |
| Chemical Composition | C≤0.03, Cr 16.0-18.0, Ni 10.0-14.0, Mo 2.0-3.0 |
| Mechanical Properties | Tensile ≥485 MPa, Yield ≥170 MPa, Elongation ≥35% |
Solution annealing is a critical heat treatment process where the WP316L stainless steel tee is heated to 1040-1120°C and held at temperature to fully dissolve chromium carbides into solid solution, then rapidly quenched. This process restores optimal intergranular corrosion resistance by preventing chromium depletion at grain boundaries that occurs during welding or hot forming.
Without solution annealing, sensitized stainless steel tees become susceptible to intergranular attack in corrosive environments, particularly after welding. Our solution annealed corrosion resistant stainless steel butt weld tee ensures consistent corrosion protection throughout the entire fitting, including heat-affected zones.
The solution annealed WP316L stainless steel butt weld tee offers significantly enhanced pitting and crevice corrosion resistance compared to WP304L, primarily due to the 2.0-3.0% molybdenum addition. In chloride-containing environments such as seawater, coastal atmospheres, and chemical processes involving halides, WP316L demonstrates PREN values of 24-26 versus 18-20 for WP304L.
This makes the solution annealed WP316L tee the preferred choice for marine, offshore, and chemical processing applications where chloride-induced corrosion is a concern. The solution annealing heat treatment further enhances this corrosion resistance by ensuring a homogeneous austenitic microstructure free of detrimental phases.
For ASTM A403 WP316L solution annealed stainless steel butt weld tee fittings in most applications, post-weld heat treatment (PWHT) is not required. The low carbon content (≤0.03%) combined with the solution annealed condition minimizes the risk of sensitization during welding.
However, for severe corrosive service conditions or when specified by engineering standards, a post-weld solution anneal may be recommended. The solution annealed condition of the base tee fitting ensures that even if some carbide precipitation occurs in the narrow heat-affected zone during welding, the bulk fitting retains its corrosion-resistant properties. We recommend consulting applicable engineering codes such as ASME B31.3 for specific post-weld treatment requirements.
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company,Seller
Year Established:
1998
Total Annual:
100000-100000000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ... TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ...
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