UNS S31603 TP316L Stainless Steel Seamless Pipe 1/2"-16" NB 0.3-50mm Thickness for Boiler Systems
UNS S31603 / TP316L/316H / 316Ti stainless steel seamless pipes are engineered for high-performance boiler applications requiring exceptional corrosion resistance and durability in demanding environments.
316/316L stainless steel pipes belong to the austenitic stainless steel series and represent the most widely used stainless steel pipe variety. Grade 316 contains higher nickel content than grade 304, providing superior corrosion resistance. 316L is the low-carbon version of 316, offering enhanced weldability and reduced susceptibility to intergranular corrosion.
| Specification | Details |
|---|---|
| Applicable Standards | ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V, PED 97/23/EC, EN 10216-5 TC1/TC2, AD 2000, NACE MR0175/ISO 15156 |
| Standard Size Range | 1/8" NB to 30" NB |
| Seamless Pipes | 1/2" NB - 16" NB |
| ERW Pipes | 1/2" NB - 24" NB |
| EFW Pipes | 6" NB - 100" NB |
| Outer Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB |
| Thickness | 0.3 - 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS, LSAW, SSAW, HSAW |
| Length Options | Single Random, Double Random & Custom Length |
| Pipe End Types | Plain End, Beveled End, Threaded |
| Manufacturing Techniques | Seamless / ERW / Welded / Fabricated / CDW / EFW |
| Available Shapes | Round, Half Round, Square, Rectangular or Custom |
| Grade | ASTM | JIS | EN | C | Si | Mn | P | S | Cr% | Ni% | Mo |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 316 | 316 | SUS316 | 1.4401 | ≤0.08 | ≤0.75 | ≤2.00 | ≤0.045 | ≤0.030 | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 |
| 316L | 316L | SUS316L | 1.4435 | ≤0.03 | ≤0.75 | ≤2.00 | ≤0.045 | ≤0.030 | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 |
| 316Ti | 316Ti | SUS316Ti | - | ≤0.08 | ≤0.75 | ≤2.00 | ≤0.045 | ≤0.030 | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 |
Excellent performance in marine, chemical, and high-temperature environments
Maintains structural integrity in boiler and high-heat applications
Easy fabrication and installation with minimal risk of intergranular corrosion
Ideal for applications requiring hygienic conditions and minimal contamination
Good tensile strength combined with deformation capability
Reduced weight compared to traditional materials with versatile thickness options
- Boiler systems and heat exchangers
- Chemical and petrochemical processing plants
- Oil and gas refining operations
- Pharmaceutical production facilities
- Food and beverage processing equipment
- Marine and coastal infrastructure
- High pressure and high temperature industrial systems
Available in various polished surfaces including #4, #6, and #8 mirror finishes. Standard supply in random lengths of 20 feet with custom cutting available.
Pipes are securely packaged in bales or wooden cases to ensure protection during transportation and storage.
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