ASTM B704 Alloy 825/UNS N08825 Chemical Injection Line For Oil Industry

ASTM B704 Alloy 825/UNS N08825 Chemical Injection Line For Oil Industry

Specification

Company & Factory Introduction

MTSCO is a professional factory complex in the industrial piping sector, operating four major product divisions. In 2024, MTSCO established its own production base—Siri Tubing—specializing in the manufacturing of chemical injection lines, capillary tubes, multi-core tubing, and cables. The factory strictly follows international ASTM standards and can supply various materials including 304, 316, 2205, 2507, Alloy 625, and Alloy 825. Siri Tubing has obtained ISO certification and has long-term partnerships with international energy companies such as OXY, KOC, and ADNOC. We are not just selling products, we are also your reliable supply chain partner.

Product Advantages

·Ultra-long continuous production: Chemical injection lines can reach a maximum length of 50,000 feet, approximately 15 km, per coil, reducing field splices and improving system reliability.
·High-pressure bearing capacity: Chemical injection lines have a standard hydraulic test pressure of 5,000 PSI and can withstand a maximum test pressure of 15,000 PSI, meeting the requirements of the vast majority of high-pressure applications.
·Diversified encapsulation materials: Provides multiple plastic encapsulation options including FEP, PVDF, Rilsan PA 11, and Santoprene TPV, meeting different working condition requirements.
·ISO certification guarantee: Siri Tubing has obtained ISO 9001 quality management system certification, ensuring stable and controllable product quality.
·Fast delivery capability: Regular specifications are kept in stock year-round, enabling rapid response to urgent customer needs and ensuring on-time delivery.

Alloy 825/ UNS N08825

Alloy 825 is a nickel-iron-chromium-based alloy with added molybdenum, copper, and titanium. It offers excellent resistance to uniform corrosion, pitting corrosion, and high-temperature oxidation. This material remains stable in both reducing and oxidizing environments.

Alloy 825 exhibits excellent resistance to a wide range of acidic media and is widely used in sulfuric acid, phosphoric acid, and nitric acid processing equipment, nuclear fuel reprocessing, heat exchangers, acid gas pipelines, and marine engineering applications.

Quality Control System

·Raw Material Re-inspection: All raw materials come from qualified suppliers such as POSCO, ATI, JISCO and other internationally renowned steel mills. Upon arrival, the QC team performs PMI composition re-inspection to ensure the material meets order requirements.
·Traceable production process: The main production processes include 100% laser welding, cold drawing, and bright annealing. Each production stage is supervised on-site by experienced engineers and technicians, with professional QC inspectors participating throughout and taking photos for archiving. The entire production process uses process cards, supporting full-process traceability.
·Pre-shipment full inspection: Siri Tubing has a professional QC team that conducts a series of inspections and tests on finished products, including routine appearance inspection, PMI composition verification, dimension measurement, and more. At the same time, special inspections such as airtightness testing, hydrostatic testing, and eddy current testing are conducted. Additionally, we support third-party inspections by SGS, TUV, and BV to meet the inspection requirements of international customers.

Hydraulic / Air Tight Test

Hydrostatic and airtight testing are necessary procedures to verify the pressure sealing performance of chemical injection lines. MTSCO conducts pressure testing on all chemical injection lines, with a standard test pressure of 5,000 PSI and a maximum withstand test pressure of 15,000 PSI. Hydrostatic testing detects deformation and leakage of the tube body and weld seam under high pressure by injecting pressurized water into the tube; airtight testing is used for scenarios with higher sealing requirements and can quickly detect micro-leakage. Both testing methods can be flexibly selected according to customer requirements to ensure products meet the pressure requirements of different working conditions. After testing is complete, all data records and samples are retained and archived.

Siri Laboratory Introduction

Siri Laboratory is equipped with tensile testing machines, impact testing machines, metallographic microscopes, hardness testers, and other equipment, capable of conducting various mechanical property tests including tensile testing, flaring testing, flattening testing, bending testing, and hardness testing. At the same time, the laboratory conducts professional testing such as chemical composition analysis, intergranular corrosion testing, and metallographic analysis. The laboratory's comprehensive testing system provides reliable quality assurance for Siri Tubing products.

FAQ

Q1: What encapsulation materials are available for chemical injection lines?
A1: We offer four plastic encapsulation materials: FEP, PVDF, Rilsan PA 11, and Santoprene TPV. FEP and PVDF have excellent chemical corrosion resistance, while Rilsan PA 11 offers good flexibility. You can select the most suitable encapsulation material based on the specific application environment.

Q2: What quality certifications does the product have?
A2: Siri Tubing has obtained ISO 9001 quality management system certification. All raw materials come from renowned steel mills; the production process is fully traceable; finished products undergo 100% hydrostatic testing and eddy current inspection before shipment.

Q3: What is the maximum operating pressure of chemical injection lines?
A3: Chemical injection lines have a standard hydraulic test pressure of 5,000 PSI and can withstand a maximum test pressure of 15,000 PSI, meeting the requirements of the vast majority of high-pressure applications.