China Stainless Steel
stainless steel
thick-walled pipe
TeCarve’s Stainless Steel Thick-Walled Pipe is engineered to withstand extreme pressure, high temperature, and aggressive environments, making it ideal for heavy-duty industrial applications.
These pipes are crafted from high-grade stainless steel and offer exceptional strength, superior corrosion resistance, and dimensional precision. They are commonly used in high-pressure steam lines, oil & gas pipelines, hydraulic systems, and structural applications that demand uncompromising durability.
TeCarve delivers both seamless and welded thick-walled options, with custom lengths, wall thicknesses, and surface finishes available. Every pipe is rigorously tested to ensure optimal performance and compliance with global standards.
For heavy-wall dimensions, tolerances, and testing requirements, explore our custom stainless steel tube fabrication service.
Specifications
Available Sizes by Standard
Markets: N. America, oil & gas, EPC — heavy-wall pipe (Sch80S + custom non-catalog heavy wall)
| NPS | Sch | OD (mm) | WT (mm) | OD Tol. | WT Tol. |
|---|---|---|---|---|---|
| 1/2" | 80S | 21.3 | 3.73 | +0.4mm / -0.8mm | +20.0% / -12.5% |
| 1" | 80S | 33.4 | 4.55 | +0.4mm / -0.8mm | +20.0% / -12.5% |
| 2" | 80S | 60.3 | 5.54 | +0.8mm / -0.8mm | +20.0% / -12.5% |
| 2" | Custom | 60.3 | 8.74 | +0.8mm / -0.8mm | +20.0% / -12.5% |
| 4" | 80S | 114.3 | 8.56 | +1.6mm / -0.8mm | +15.0% / -12.5% |
| 4" | Custom | 114.3 | 13.49 | +1.6mm / -0.8mm | +15.0% / -12.5% |
| 6" | 80S | 168.3 | 10.97 | +1.6mm / -0.8mm | +15.0% / -12.5% |
| 8" | 80S | 219.1 | 12.70 | +2.4mm / -0.8mm | +15.0% / -12.5% |
| 8" | Custom | 219.1 | 23.01 | +2.4mm / -0.8mm | +15.0% / -12.5% |
| 10" | 80S | 273.0 | 12.70 | +2.4mm / -0.8mm | +22.5% / -12.5% |
| 12" | 80S | 323.9 | 12.70 | +2.4mm / -0.8mm | +22.5% / -12.5% |
| 12" | Custom | 323.9 | 33.32 | +2.4mm / -0.8mm | +15.0% / -12.5% |
- Supply Length / Form: Fixed lengths 1–12 m; custom lengths and cut-to-length available
- Available Grades: 304, 304L, 316, 316L, 321, 310S, 317L, 904L, duplex 2205, etc.
- Surface Finish: Annealed & pickled, polished, bright annealed, or as requested
- Tolerance Compliance: Per ASTM A999, EN ISO 1127, JIS G3459, or GB/T general tolerance tables (heavy-wall schedules)
Markets: Europe, Middle East — heavy-wall pressure piping, petrochemical, power gen
| OD (mm) | WT (mm) | OD Tol. | WT Tol. |
|---|---|---|---|
| 33.7 | 5.0 | ±0.30mm (±0.9%) | ±0.63mm (±12.5%) |
| 48.3 | 6.0 | ±0.36mm (±0.75%) | ±0.75mm (±12.5%) |
| 60.3 | 7.1 | ±0.45mm (±0.75%) | ±0.89mm (±12.5%) |
| 88.9 | 10.0 | ±0.67mm (±0.75%) | ±1.25mm (±12.5%) |
| 114.3 | 13.5 | ±0.86mm (±0.75%) | ±1.69mm (±12.5%) |
| 168.3 | 18.0 | ±1.26mm (±0.75%) | ±2.25mm (±12.5%) |
| 219.1 | 20.0 | ±1.64mm (±0.75%) | ±2.50mm (±12.5%) |
| 273.0 | 25.0 | ±2.05mm (±0.75%) | ±3.13mm (±12.5%) |
| 323.9 | 30.0 | ±2.43mm (±0.75%) | ±3.75mm (±12.5%) |
- Supply Length / Form: Fixed lengths 1–12 m; custom lengths and cut-to-length available
- Available Grades: 304, 304L, 316, 316L, 321, 310S, 317L, 904L, duplex 2205, etc.
- Surface Finish: Annealed & pickled, polished, bright annealed, or as requested
- Tolerance Compliance: Per ASTM A999, EN ISO 1127, JIS G3459, or GB/T general tolerance tables (heavy-wall schedules)
Markets: Japan, Southeast Asia — heavy-wall pipe (Sch80/160 series)
| OD (mm) | Sch | WT (mm) | OD Tol. | WT Tol. |
|---|---|---|---|---|
| 34.0 | 80 | 4.5 | ±0.40mm (±1.2%) | ±0.56mm (±12.5%) |
| 60.5 | 80 | 5.5 | ±0.45mm (±0.75%) | ±0.69mm (±12.5%) |
| 89.1 | 80 | 7.6 | ±0.67mm (±0.75%) | ±0.95mm (±12.5%) |
| 114.3 | 80 | 8.6 | ±0.86mm (±0.75%) | ±1.08mm (±12.5%) |
| 165.2 | 80 | 11.0 | ±1.24mm (±0.75%) | ±1.38mm (±12.5%) |
| 216.3 | 80 | 12.7 | ±1.62mm (±0.75%) | ±1.59mm (±12.5%) |
| 267.4 | 80 | 15.1 | ±2.01mm (±0.75%) | ±1.89mm (±12.5%) |
- Supply Length / Form: Fixed lengths 1–12 m; custom lengths and cut-to-length available
- Available Grades: 304, 304L, 316, 316L, 321, 310S, 317L, 904L, duplex 2205, etc.
- Surface Finish: Annealed & pickled, polished, bright annealed, or as requested
- Tolerance Compliance: Per ASTM A999, EN ISO 1127, JIS G3459, or GB/T general tolerance tables (heavy-wall schedules)
Markets: China domestic & Belt-and-Road — heavy-wall pipe
| OD (mm) | WT (mm) | OD Tol. | WT Tol. |
|---|---|---|---|
| 34 | 5.0 | ±0.34mm (±1.0%) | ±0.63mm (±12.5%) |
| 60 | 7.0 | ±0.60mm (±1.0%) | ±0.88mm (±12.5%) |
| 89 | 9.0 | ±0.89mm (±1.0%) | ±1.13mm (±12.5%) |
| 114 | 11.0 | ±1.14mm (±1.0%) | ±1.38mm (±12.5%) |
| 168 | 15.0 | ±1.68mm (±1.0%) | ±1.88mm (±12.5%) |
| 219 | 18.0 | ±2.19mm (±1.0%) | ±2.25mm (±12.5%) |
| 325 | 25.0 | ±3.25mm (±1.0%) | ±3.13mm (±12.5%) |
- Supply Length / Form: Fixed lengths 1–12 m; custom lengths and cut-to-length available
- Available Grades: 304, 304L, 316, 316L, 321, 310S, 317L, 904L, duplex 2205, etc.
- Surface Finish: Annealed & pickled, polished, bright annealed, or as requested
- Tolerance Compliance: Per ASTM A999, EN ISO 1127, JIS G3459, or GB/T general tolerance tables (heavy-wall schedules)
Standards
→ Scroll right for full chemistry & mechanical data
| Grade | US (UNS) | EN (W.Nr.) | Japan (JIS) | China (GB/T) | C % (Max) | Si % (Max) | Mn % (Max) | P % (Max) | S % (Max) | Cr % | Ni % | Mo % | Tensile σb (Min.) | Yield σ0.2 (Min.) | Elongation (Min.) | Hardness (Max) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2205 Duplex* | S32205 | 1.4462 | SUS329J3L* | 022Cr23Ni5Mo3N* | 0.030 | 1.00 | 2.00 | 0.030 | 0.020 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 655 MPa (95 ksi) | 450 MPa (65 ksi) | 25% | ≤31 HRC / ≤293 HB |
| 304 | S30400 | 1.4301 | SUS304 | 06Cr19Ni10 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-10.5 | — | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | ≤92 HRB / ≤215 HV |
| 304L | S30403 | 1.4307 | SUS304L | 022Cr19Ni10 | 0.030 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-12.0 | — | 485 MPa (70 ksi) | 170 MPa (25 ksi) | 35% | ≤92 HRB / ≤215 HV |
| 310S | S31008 | 1.4845 | SUS310S | 06Cr25Ni20 | 0.08 | 1.50 | 2.00 | 0.045 | 0.030 | 24.0-26.0 | 19.0-22.0 | — | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | ≤95 HRB / ≤215 HV |
| 316 | S31600 | 1.4401 | SUS316 | 06Cr17Ni12Mo2 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | ≤95 HRB / ≤215 HV |
| 316L | S31603 | 1.4404 | SUS316L | 022Cr17Ni12Mo2 | 0.030 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 485 MPa (70 ksi) | 170 MPa (25 ksi) | 35% | ≤95 HRB / ≤215 HV |
| 317L | S31703 | 1.4438 | SUS317L | 022Cr19Ni13Mo3 | 0.030 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 11.0-15.0 | 3.0-4.0 | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | ≤95 HRB / ≤215 HV |
| 321 | S32100 | 1.4541 | SUS321 | 06Cr18Ni11Ti | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 17.0-19.0 | 9.0-12.0 | — | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% | ≤95 HRB / ≤215 HV |
| 410 | S41000 | 1.4006 | SUS410 | 12Cr13 | 0.15 | 1.00 | 1.00 | 0.040 | 0.030 | 11.5-13.5 | — | — | 450 MPa (65 ksi) | 205 MPa (30 ksi) | 20% | ≤96 HRB / ≤210 HV |
| 904L* | N08904 | 1.4539 | N/A | 015Cr20Ni18Mo6CuN* | 0.020 | 1.00 | 2.00 | 0.045 | 0.035 | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 | 490 MPa (71 ksi) | 215 MPa (31 ksi) | 35% | ≤90 HRB / ≤200 HV |
- Standards Conformance: ASTM A312/A358 · EN 10216-5/10217-7 · JIS G3459 · GB/T 14976/13296 · ISO 4200/1127
- Delivery Condition: Solution Annealed & Pickled (AP) / Bright Annealed (BA) / Polished, or as requested.
- Mill Test Certificate: 100% full material traceability with EN 10204 3.1 MTC provided with every shipment.
- Cross-Reference Note: 2205 duplex and 904L JIS/GB cross-reference figures are compiled from secondary industry sources — please confirm exact specification and heat-specific mill test certificate with TeCarve for critical applications.
Features
• Thick wall for high-pressure resistance
• Excellent mechanical strength
• Available in custom diameters and grades
• High corrosion and oxidation resistance
• High-pressure oil & gas pipelines
• Power plant and boiler systems
• Industrial hydraulic and mechanical structures
•Chemical process transport lines
Applications
For severe-service heavy wall piping, check how to verify our manufacturing partners' heavy-wall piercing, ultrasonic testing, wall-thickness uniformity, and mechanical property testing.
Quality Control
• UT, ET, and Hydrostatic testing
• Mechanical property testing
• Visual & dimensional inspections
• Certified mill test reports and third-party inspections
packaging
PVC Wrapping
& End Caps
Custom Barcoding
& Labeling
Anti-Corrosion
& Moisture Protection
Seaworthy Wooden Cases & Pallets
Thick-walled Pipe Factory & Export Photos
Real factory, inspection, packaging and loading photos from TeCarve gallery pages.
Tailored Solutions, Timely Fulfillment
CUSTOMIZATION
& DELIVERY
Flexible Custom Manufacturing
We customize stainless steel thick-walled pipe by outer diameter, heavy wall thickness, custom length, seamless or welded construction, material grade, surface finish, and dimensional tolerance for demanding service.
Low MOQ & Rapid Prototyping
Small batch customization and sample production are supported, helping you shorten your development cycle and market entry.
Optimized Lead Time
Most orders ship within 10–25 days after deposit. Exact timing depends on product specification, required documentation, and order volume.
Global Logistics & On-Time Delivery
For thick-walled pipe shipments to over 50 countries, seaworthy wooden cases and pallets are the primary transport support, supplemented by anti-corrosion and moisture protection.
Frequently Asked Questions
What is thick-walled stainless steel pipe?
Thick-walled stainless steel pipe has a wall-to-OD ratio typically above 10%, designed for high-pressure, high-temperature, or high-stress applications. It is produced by cold-drawing or hot-extrusion from solid billets and is used in hydraulic cylinders, pressure vessels, and chemical reactors.
What pressure ratings do thick-walled stainless steel pipes support?
Working pressure depends on OD, wall thickness, and grade. Working pressure should be calculated from OD, wall thickness, grade, design code, temperature, and corrosion allowance for each project. Pressure calculations and hydrostatic test certificates are provided with each order.
What size range is available for thick-walled stainless steel pipe?
Thick-walled stainless steel pipe is available in outer diameter from 6 mm to 2000 mm with wall thickness of 5 mm or above. Grades include 304, 316L, 321, 316Ti, and duplex 2205/2507. Customer drawings with specific bore and OD combinations are accepted.
What standards apply to thick-walled stainless steel pipe?
Our thick-walled pipes comply with ASTM A312, ASTM A358, EN 10216-5, and EN 10217-7. Available testing includes hydrostatic test, ultrasonic inspection (UT), and PMI (positive material identification) per customer project specification.
Which grade is best for high-pressure stainless steel pipe service?
Grade 316L is standard for high-pressure corrosion-resistant service. Grade 321 or 316Ti is recommended above 500°C for stabilized creep resistance. Duplex 2205 offers approximately double the yield strength of 304/316L, enabling thinner walls and lighter weight at equivalent pressure rating.