Baojing Steel supplies Thick Wall Stainless Steel Pipes with heavy wall thicknesses for demanding applications requiring high mechanical strength, pressure resistance, corrosion resistance and long-term service performance.
Available in both seamless and welded configurations, our thick wall stainless steel pipes can be supplied in austenitic, duplex, super duplex, heat-resistant and high-alloy grades, with customized outside diameter, wall thickness, length, surface and testing requirements.
Heavy Wall · High Pressure · High Strength · Corrosion Resistant · Custom Dimensions
Thick wall construction provides increased resistance to internal pressure, external loads and mechanical stress, making it suitable for demanding piping systems.
Greater wall thickness provides excellent structural stability and durability for heavy-duty industrial applications.
Available in corrosion-resistant stainless steel and duplex grades for applications involving chlorides, chemicals, seawater and aggressive process media.
Available in various combinations of:
OD × Wall Thickness × Length
including customized and non-standard dimensions.
Can be supplied with comprehensive inspection and testing according to project requirements.
| Grade | Recommended Applications | Key Advantages |
|---|---|---|
| 304 / 304L | General industrial piping, structural applications | Good corrosion resistance & fabrication |
| 316 / 316L | Chemical, marine, process piping | Enhanced chloride resistance |
| 321 / 321H | High-temperature piping | Excellent resistance to thermal cycling |
| 310S | Furnace, heat-treatment, high-temperature systems | High-temperature oxidation resistance |
| 347H | High-temperature pressure piping | Creep & intergranular corrosion resistance |
| 2205 | Oil & gas, chemical, marine | High strength + excellent corrosion resistance |
| 2507 | Offshore, seawater, desalination | Superior chloride resistance |
| 904L | Chemical processing, sulfuric acid service | Excellent corrosion resistance |
| 254 SMO | Seawater, desalination, aggressive chloride service | Exceptional pitting resistance |
Thick wall stainless steel pipes can be supplied according to NPS / DN or metric dimensions.
OD: 20 mm–2000+ mm
8 mm · 10 mm · 12 mm · 15 mm · 16 mm · 20 mm · 25 mm · 30 mm · 35 mm · 40 mm · 50 mm+
Actual wall thickness depends on the pipe diameter, grade, manufacturing process and applicable standard.
60.3 × 10 mm
114.3 × 12 mm
168.3 × 16 mm
219.1 × 20 mm
273 × 25 mm
323.9 × 30 mm
406.4 × 30 mm
508 × 35 mm
610 × 40 mm
Customized OD × WT × Length combinations are available.
Manufactured without a longitudinal weld seam, suitable for demanding applications involving:
High Pressure · High Temperature · Mechanical Loads · Critical Process Service
Common grades:
304L · 316L · 321H · 347H · 2205 · 2507 · 904L
Suitable for large-diameter and heavy-wall applications, offering greater flexibility in diameter, wall thickness and length.
Common applications:
Large-Diameter Piping · Chemical Plants · Water Treatment · Marine · Structural Applications
Depending on size and specification, thick wall pipes can be produced by:
Hot Piercing → Hot Rolling → Cold Rolling / Cold Drawing → Heat Treatment → Straightening → Cutting
For welded products:
Plate / Coil → Forming → Welding → Weld Treatment → Heat Treatment → Sizing → Testing → Cutting
The production route is selected according to:
Material Grade · OD · Wall Thickness · Length · Standard · Application
Pickled · Annealed & Pickled · Bright Annealed · Polished · No.1 · 2B · Customized
Plain End · Beveled End · Threaded End · Customized End
For thick wall pipes, beveling and end preparation can be customized for welding and installation requirements.
For high-pressure and critical applications, comprehensive inspection can be provided.
OD · Wall Thickness · Length · Ovality · Straightness
PMI · Chemical Composition · MTC
Tensile Strength · Yield Strength · Elongation · Hardness
UT · Eddy Current · RT / X-Ray · Surface Inspection
Hydrostatic Test · IGC Test · Flattening Test · Bend Test
Inspection requirements can be customized according to ASTM / ASME / EN / JIS / GB/T and project specifications.
ASTM A312 / ASME SA312
Austenitic stainless steel pipe
ASTM A790 / ASME SA790
Duplex stainless steel pipe
ASTM A358 / ASME SA358
Electric-fusion-welded austenitic stainless steel pipe
ASTM A789 / ASME SA789
Duplex stainless steel tubing
EN 10216 · EN 10217 · EN 10296 · JIS G3459 · JIS G3468 · GB/T 14976 · GB/T 12771 · GB/T 21833
High-Pressure Piping · Offshore Systems · Process Lines · Oilfield Equipment
Recommended:
316L · 2205 · 2507
Process Piping · Reactors · Chemical Equipment · High-Pressure Systems
Recommended:
316L · 317L · 904L · 2205 · 2507
Boiler Systems · High-Temperature Piping · Heat Exchangers · Energy Equipment
Recommended:
321H · 347H · 310S
Seawater Piping · Offshore Platforms · Marine Equipment
Recommended:
316L · 2205 · 2507 · 254 SMO
Seawater Systems · Desalination Equipment · High-Chloride Piping
Recommended:
2205 · 2507 · 254 SMO
Pressure Equipment · Structural Components · Hydraulic Systems · Heavy Machinery
Recommended:
304 / 304L · 316 / 316L · 2205
Heavy Wall Capability
Customized thick wall dimensions for demanding projects.
Multiple Grades
Austenitic, duplex, super duplex and high-alloy stainless steels.
Large Diameter Options
Suitable for large-diameter heavy-wall piping requirements.
Strict Quality Control
Chemical, mechanical, dimensional and NDT inspection available.
International Standards
ASTM / ASME / EN / JIS / GB/T specifications available.
Customized Production
Supply according to customer drawings, specifications and project requirements.
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