S30403 1.4306 Large Diameter Seamless Stainless Steel Pipe Annealed Pickled
SSAPP16 - ASTM A312 S30403 / 1.4306 Stainless Steel Big Size Seamless Pipe For Transportation
Price: From $2900-3800USD/TON
Material: 304, 1.4301, X5CrNi18-10; 304H, S30415, 1.4948, S30409; 304L, 1.4306, S30403, 1.4307;
Get A QuoteS30403 1.4306 Large Diameter Seamless Stainless Steel Pipe Annealed Pickled
Meet Your Strategic Metal Supply Partner
Established in 2006, MTSCO has specialized in stainless steel and nickel alloy pipe products for nearly two decades. We operate under a “Factory Complexes” model, collaborating closely with HUXIN PIPE, a major seamless pipe manufacturer. The factory possesses stable production capabilities for large-diameter seamless pipes. Our products hold certifications including ISO and PED, serving industrial projects worldwide. Leveraging a mature supply chain and engineering team, MTSCO delivers products with reliable delivery schedules.
Surface Condition
This product features an Annealed & Pickled surface finish. Annealing eliminates internal stresses, resulting in a more uniform and stable microstructure. This enhances the long-term operational safety of large-diameter seamless pipes. Pickling removes scale and surface impurities, improving corrosion resistance. This also facilitates subsequent welding and installation.
Product Advantages
• Seamless pipe delivers high overall strength, ideal for large diameters
• Annealed and pickled condition ensures clean surface for easy installation and welding
• Strict adherence to ASTM A312 standards with traceable quality
• Custom lengths and specifications available to match project requirements
Key Specs at a Glance
Attribute | Specification Details |
Product Standard | ASTM A312 / ASME SA312 |
Material Grade | S30403 / 1.4306 |
Process Type | Seamless (Cold Drawn / Cold Rolled) |
Surface Finish | Annealed & Pickled (AP) |
Certification | PED / ISO 9001 / AD2000 / M650 |
Outer Diameter (OD) | 8mm-711mm |
Wall Thickness (WT) | 1mm-50mm |
Package | End protection/ Woven bags/ Wooden cases |

Customer case studies
Year | Project /Facility name | Country | End user/EPC | Material | Products | Qty (KGS) |
2025 | THE GUGGENHEIM MUSEUM | UAE | BESIX Group | 317L | 317L polishing pipe | 6000 |
2024 | Arrow Train 4 | Canada | PCL | 304/304L | 54'' pipe/fitting | |
2024 | SOREK II DESALINATION PLANT | ISRAEL | IDE Technogles/BUTTING | S32750, S31254, SS316L | Pipe/Fitting/Plate | 70,000 |
2024 | Petrochemial Reaction Equipment | UAE | Borouge | N08031 | Pipe/Fitting/Flange | 2000 |
2024-2025 | Shell Nigeria | Nigeria | Shell | S32750/S31803 | Seamless pipe/Fitting/Flange | 32000 |
FAQ
Q1: Can third-party inspection be arranged?
A1: Absolutely. We fully support on-site pre-shipment inspections by authoritative third-party agencies such as SGS, TUV, and BV. Our QC team will actively coordinate to ensure a smooth inspection process, giving you peace of mind upon receipt.
Q2: Can pipe lengths and end finishes be customized?
A2: Yes. MTSCO provides various lengths and end finishes per customer requirements, including plain or beveled ends, ensuring construction convenience.
Q3: Beyond the pipes themselves, can you provide related fittings and connection solutions?
A3: Absolutely. This is precisely the advantage of MTSCO's one-stop supply. Since 2010, we have held a controlling stake in a specialized pipe fittings factory. We can supply butt-welded fittings, flanges, and other components fully compatible with 304L pipe, ensuring material consistency and performance throughout your entire piping system.
VIP SERVICE
VR (Virtual) Mill Introduction
Professional Remote Technical Guidanceion
Accept Third-party Inspection
Door to Door Shipment
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