ASTM A312 TP317 Stainless Seamless Pipe Large Diameter With M650
MTASSP07 - ASTM A312 / ASME SA312 TP317 Austenitic Stainless Steel Pipe For Oil And Gas
Price: From $6240-7840USD/TON
Material: 317,317L,1.4449,1.4438;
Get A QuoteASTM A312 TP317 Stainless Seamless Pipe Large Diameter With M650
Company Profile
MTSCO is a leading supplier of stainless steel piping. Our supply chain is deeply consolidated through investments in multiple specialized factories. HUXIN Pipe boasts decades of production experience. Equipped with advanced facilities such as large-scale cold rolling mills, this factory specializes in manufacturing large-diameter seamless pipes. We maintain exclusive strategic partnerships with core factories like HUXIN Pipe. This collaboration ensures a stable supply of high-quality pipe. We exercise direct control over production schedules and product quality, providing you with reliable assurance. All partner factories strictly implement quality management systems and hold authoritative certifications including ISO, PED, and M650. This guarantees products meet the stringent demands of the energy sector.

Application Scenarios
Large-diameter TP317 seamless pipes are ideal for major industrial projects. They are particularly suited for oil and gas transmission trunk lines, process pipes in chemical complexes, and water supply lines in desalination plants. This material exhibits outstanding corrosion resistance, effectively withstanding chloride attack in soil, seawater, and chemical media. MTSCO's M650-certified products have been deployed in multiple international mega-projects. We possess deep expertise in large-diameter pipe applications for critical scenarios, offering end-to-end professional services from product selection to logistics.
Product Parameters
Standard & Grade | ASTM A312 TP317 (UNS S31700) |
Type | Seamless Pipe |
Outer Diameter (OD) | 8mm-711mm |
Wall Thickness (WT) | 1mm-50mm |
Length | ≤12m |
Certification | ISO/PED/AD2000/M650/TS |
Package | End protection/ Woven bags/ Wooden cases |
Inspection Methods Of 317 Seamless Pipe
To ensure the quality of large-diameter TP317 steel pipes, we implement a series of rigorous inspections. These include ultrasonic testing to detect internal and external wall defects, alongside eddy current testing to screen for surface quality issues. We also perform hydrostatic testing to validate pipe pressure-bearing capacity. Tests for dimensional accuracy and mechanical properties are conducted. We support on-site inspections by third-party agencies such as SGS and BV. Physical and chemical laboratory equipment at MTSCO partner factories undergoes regular calibration. Non-destructive testing equipment is also maintained with periodic calibration. These measures ensure precise and reliable inspection data, guaranteeing the authenticity and validity of product information you receive.

FAQ Of 317 Seamless Pipe
Q1: What is M650 certification? Why is it important?
A1: M650 is a widely recognized material certification standard in the energy industry. It specifies full material traceability requirements from smelting to delivery. For large-diameter trunk pipes, the M650 certificate is a critical document ensuring clear material origin and reliable quality. It serves as a mandatory threshold for entry into many major international projects.
Q2: What are your maximum diameter and wall thickness capabilities?
A2: Currently, our strategic facility in Shanghai can produce large-diameter seamless pipes up to 711mm OD. Wall thicknesses are customizable based on your design pressure requirements. We typically accommodate SCH80 and thicker grades. Please provide your specific operating conditions, and we will recommend the most cost-effective specifications.
Q3: What advantages does TP317 offer over 316L in large-diameter applications?
A3: TP317 contains higher molybdenum content. Its resistance to pitting and crevice corrosion significantly outperforms 316L. For large-diameter pipes transporting chloride-containing media or operating in corrosive environments, TP317 delivers extended service life and enhanced safety. It represents a more cost-effective choice over the entire lifecycle.
Packaging Of 317 Seamless Pipe
Product | Packaging |
LCL PIPE | Plywood crate + protective pipe caps on both ends |
FCL PIPE | Woven bag + protective pipe caps on both ends |

VIP SERVICE
VR (Virtual) Mill Introduction
Professional Remote Technical Guidanceion
Accept Third-party Inspection
Door to Door Shipment
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