SHANDONG SHOUYA STEEL CO., LTD.
| Payment Terms | T/T |
| Chemical Composition (TP316L) | Cr 16–18%, Ni 10–14%, Mo 2–3%, C ≤0.035% |
| Package | Wooden Case / Pallet with End Caps and Waterproof Wrap |
| Material Grade | TP316L (UNS S31603) |
| Delivery Time | 15-30 days |
| Schedule / Wall Thickness | SCH 10, SCH 40 (ASME B36.19) |
| Surface Finish | Annealed & Pickled, Polished (Optional) |
| Packaging Details | Standard Export Packing |
| Processing Service | Cutting, Beveling, Welding, Passivation, Threading |
| Pipe Size Range | 1/2″ – 48″ NB |
| Supply Ability | 50,0000 tons per year |
| Corrosion Resistance | TP316/316L: Pitting & Crevice Resistant in Chloride Media; TP304: General Petrochemical Service |
| Application | Process Piping, Heat Exchangers, Reactor Internals, Transfer Lines |
| Standard | ASTM A312 / ASME SA312 |
| Name | Heavy-Wall SCH40 316L Stainless Steel Welded Pipe for Petrochemical |
| Manufacturing Process | Longitudinal Welded (ERW / EFW), Cold Formed, Solution Annealed & Pickled |
| Model Number | 316L |
| Certification | CE, EN |
| Brand Name | Shouya |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Chemical Composition (TP316L) | Cr 16–18%, Ni 10–14%, Mo 2–3%, C ≤0.035% |
| Package | Wooden Case / Pallet with End Caps and Waterproof Wrap | Material Grade | TP316L (UNS S31603) |
| Delivery Time | 15-30 days | Schedule / Wall Thickness | SCH 10, SCH 40 (ASME B36.19) |
| Surface Finish | Annealed & Pickled, Polished (Optional) | Packaging Details | Standard Export Packing |
| Processing Service | Cutting, Beveling, Welding, Passivation, Threading | Pipe Size Range | 1/2″ – 48″ NB |
| Supply Ability | 50,0000 tons per year | Corrosion Resistance | TP316/316L: Pitting & Crevice Resistant in Chloride Media; TP304: General Petrochemical Service |
| Application | Process Piping, Heat Exchangers, Reactor Internals, Transfer Lines | Standard | ASTM A312 / ASME SA312 |
| Name | Heavy-Wall SCH40 316L Stainless Steel Welded Pipe for Petrochemical | Manufacturing Process | Longitudinal Welded (ERW / EFW), Cold Formed, Solution Annealed & Pickled |
| Model Number | 316L | Certification | CE, EN |
| Brand Name | Shouya | Place of Origin | China |
| High Light | Heavy Wall Stainless Steel Pipe 316L ，Petrochemical Plants SCH40 Pipe ，SCH40 Stainless Steel Pipe | ||
Heavy-Wall SCH40 316L Stainless Steel Welded Pipe for Petrochemical
316L stainless steel welded pipe (UNS S31603) in SCH40 wall thickness is an ultra-low-carbon, molybdenum-bearing austenitic alloy produced by forming strip or plate into tubular shape and joining the longitudinal seam with automatic welding. The carbon content is capped at 0.03% to prevent chromium carbide precipitation during welding, preserving intergranular corrosion resistance in the heat-affected zone without post-weld solution annealing. The 2–3% molybdenum addition delivers pitting and crevice corrosion resistance superior to 304 in chloride-bearing and sour petrochemical media. SCH40 wall thickness provides the pressure containment margin required for hydrocarbon transfer, process piping and utility lines in refineries and petrochemical plants, where combined internal pressure, thermal cycling and corrosive attack demand a heavier wall than SCH10 or SCH20.
| Parameter | Specification |
|---|---|
| Grade | 316L (UNS S31603) |
| Type | Welded (longitudinal seam) |
| Schedule | SCH40 |
| Outer Diameter | 6mm – 1200mm |
| Wall Thickness | Per ASME B36.19 SCH40 |
| Length | 6m / 12m or cut to order |
| Tensile Strength | ≥485 MPa |
| Yield Strength | ≥170 MPa |
| Elongation | ≥35% |
| Hardness | ≤90 HRB |
| Carbon Content | ≤0.030% |
| Molybdenum | 2.00 – 3.00% |
| Weld Type | ERW / TIG / Laser |
SCH40 316L welded pipe is used in petrochemical process lines, hydrocarbon transfer piping, sour gas service, refinery utility headers, chemical storage tank piping, heat exchanger shells and offshore platform process systems.
Ultra-low carbon eliminates weld sensitization. No post-weld heat treatment required, reducing fabrication cost and schedule. SCH40 wall withstands higher pressure. Heavier wall provides containment margin for hydrocarbon and chemical service. Molybdenum resists sour and chloride media. 316L outperforms 304 in petrochemical environments containing H₂S and chlorides.
The pipe functions as a pressure-retaining conduit and corrosion barrier, transporting hydrocarbons, chemicals and process fluids under elevated pressure while resisting pitting and intergranular corrosion.
Store horizontally on wooden supports. Cut by abrasive saw or lathe; bevel ends for welding. Use ER316L filler wire with argon purge. Post-weld pickling restores passivation. Verify wall thickness and NDT certificates before pressure service.
Prevent carbon steel contact to avoid iron contamination. Avoid chloride-rich media above 60°C, which can cause stress corrosion cracking. Do not use hydrochloric acid cleaners. Confirm compliance with project specifications before installation.
Standard sizes ship 15–20 days after deposit. Custom diameters and wall thicknesses add 7–10 days. Ports: Qingdao, Shanghai, Tianjin.
T/T (30% deposit, balance before shipment) or irrevocable L/C at sight.
Hexagonal bundles with steel strapping, end caps, moisture-proof wrapping, fumigated wooden pallets or crates. Labels show grade, schedule, size, heat number and length.
Quality claims accepted within 7 working days with batch number and third-party inspection report. Confirmed material or dimensional non-conformity qualifies for replacement or refund. Defects from cutting, welding or field bending are not covered. Technical support provided for welding procedures and corrosion assessment.
Company Details
Business Type:
Manufacturer,Agent,Exporter,Trading Company
Year Established:
2009
Total Annual:
200000000-230000000
Employee Number:
150~170
Ecer Certification：
Verified Supplier
Shandong Shouya Steel Co., Ltd. Welcome to Shandong Shouya Steel Co., Ltd., a professional steel foreign trade and steel solution provider based in Shandong, China. Founded in 2009, we leverage Shandong’s steel industrial cluster advantages and boast more than ten years of experience in... Shandong Shouya Steel Co., Ltd. Welcome to Shandong Shouya Steel Co., Ltd., a professional steel foreign trade and steel solution provider based in Shandong, China. Founded in 2009, we leverage Shandong’s steel industrial cluster advantages and boast more than ten years of experience in...
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