ASTM A403 WP316 Stainless Steel Equal Tee Butt Weld ASME B16.9 1/2" to 24" SCH40S SCH80S Seamless
ASTM A403 WP316 Stainless Steel Equal Tee
TOBO supplies ASTM A403 WP316 stainless steel equal tees, the molybdenum-bearing grade that delivers superior corrosion resistance over standard 304. With 2-3% molybdenum, WP316 provides excellent resistance to pitting in chloride environments and is the preferred choice for marine, coastal, and chemical processing applications.
Product Description
- Product: Stainless Steel Equal Tee
- Material Grade: ASTM A403 WP316 (UNS S31600 / 1.4401)
- Size Range: 1/2" - 24" (DN15 - DN600) Seamless
- Wall Thickness: SCH10S, SCH40S, SCH80S, SCH160, STD, XS, XXS
- Type: Equal Tee, Seamless Butt Weld
- Standards: ASME B16.9, ASME B16.11, ASME B16.28, MSS SP-43
WP316 vs WP304 Comparison
| Property | WP316 | WP304 |
|---|---|---|
| Chromium (%) | 16.0-18.0 | 18.0-20.0 |
| Nickel (%) | 10.0-14.0 | 8.0-11.0 |
| Molybdenum (%) | 2.0-3.0 | - |
| PREN | 22-25 | 18-20 |
| Chloride Pitting Resistance | Superior | Standard |
Key Advantages
- Molybdenum Enhanced: 2-3% Mo provides significantly better resistance to pitting and crevice corrosion in chloride-containing environments
- Marine Grade Performance: The standard choice for coastal, offshore, and seawater-exposed structures
- Chemical Compatibility: Resists a wide range of chemicals including sulfuric acid compounds, phosphoric acid, and organic acids
- High Temperature Capability: Suitable for continuous service up to 870 deg C with good oxidation resistance
- Full MTC Documentation: EN 10204 3.1 certified with complete traceability from mill to delivery
Applications
Marine and coastal structures, chemical processing equipment, pharmaceutical manufacturing, food and beverage plants, pulp and paper mills, textile dyeing equipment, heat exchangers, pressure vessels, desalination pre-treatment systems
Equal Tee Dimensions
| Nominal Size | DN | OD (inch) | SCH40S Wall | SCH80S Wall | Center to End (inch) |
|---|---|---|---|---|---|
| 1/2" | 15 | 0.840 | 0.109 | 0.147 | 1.00 |
| 1" | 25 | 1.315 | 0.133 | 0.179 | 1.50 |
| 2" | 50 | 2.375 | 0.154 | 0.218 | 2.50 |
| 3" | 80 | 3.500 | 0.216 | 0.300 | 3.38 |
| 4" | 100 | 4.500 | 0.237 | 0.337 | 4.13 |
| 6" | 150 | 6.625 | 0.280 | 0.432 | 5.63 |
| 8" | 200 | 8.625 | 0.322 | 0.500 | 7.00 |
| 10" | 250 | 10.750 | 0.365 | 0.500 | 8.50 |
| 12" | 300 | 12.750 | 0.375 | 0.500 | 10.00 |
| 16" | 400 | 16.000 | 0.375 | 0.500 | 12.00 |
| 20" | 500 | 20.000 | 0.375 | 0.500 | 15.00 |
| 24" | 600 | 24.000 | 0.375 | 0.500 | 17.00 |
Packing: Standard Shipping Package | H.S Code: 73072300
Contact TOBO for SS316 equal tee pricing and delivery information.
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