ASTM B704 Nickel Alloy Inconel 625/Incoloy 825 Capillary Tube

ASTM B704 Nickel Alloy Inconel 625 Incoloy 825 Capillary Tube 

Beyond a Supplier: Discover MTSCO’s Advantage

MTSCO is a comprehensive supplier specializing in industrial piping solutions. Our wholly-owned factory, Siri Tubing, holds international certifications including ISO and PED, ensuring quality control from raw material sourcing to final delivery. With nearly two decades of export experience and a comprehensive quality control system, we are committed to delivering one-stop, cost-effective metal solutions to global customers.

How Does MTSCO Achieve “Zero-Defect” Quality?

MTSCO's quality control spans the entire process from raw materials to production and delivery, ensuring “zero-defect” products.

• Source Control: All nickel alloy raw materials undergo secondary PMI test upon arrival to verify chemical composition, ensuring full compliance with certificates from top suppliers like ATI and Outokumpu.

• Process Traceability: Production is managed via process cards, with QC photography archiving each operation (e.g., welding, cold drawing, annealing) for precise traceability.

• Pre-shipment inspection: 100% inspection before shipment covers dimensional accuracy, eddy current testing, high-pressure testing, mechanical testing and hardness testing to ensure every capillary tube meets performance standards.

Inspection Methods

We employ multiple inspection methods to guarantee capillary tube quality. PMI test verifies alloy composition both before and after production. Eddy current testing (ET) achieves 100% coverage on each tube, efficiently detecting surface and near-surface defects. For high-pressure or specialized applications, airtightness or hydraulic testing can be performed.

Specifications at a Glance: Precision Tailored to Your Needs

Engineered for Extremes: The Science Behind Our Nickel Alloys

Inconel 625 and Incoloy 825 represent high-performance nickel alloys. Alloy 625 exhibits exceptional strength and oxidation resistance at elevated temperatures while withstanding corrosion in seawater and acidic environments. Nickel alloy 825 is specifically engineered to resist corrosion from reducing acids like sulfuric and phosphoric acids. It exhibits outstanding resistance to stress corrosion cracking in chloride environments. Both materials are ideal choices for demanding operating conditions. MTSCO's nickel alloy 625 and 825 capillary tubes source raw materials from internationally renowned manufacturers like POSCO and ATI. Strict incoming PMI test ensures material composition fully complies with ASTM standards.

FAQ

Q1: What extreme environments are your capillary tubes suitable for?

A1: Nickel alloy 625 capillary tubes resist high-temperature oxidation and seawater corrosion, making them suitable for aircraft engine piping and deep-sea equipment. Incoloy 825 resists reducing acids and stress corrosion, making it ideal for transporting trace media or sensor wires in chemical, oil, and gas acidic environments.

Q2: What size ranges and tolerance standards do you offer?

A2: We manufacture capillary tubes with outer diameters ranging from 3.18mm to 38.1mm and wall thicknesses from 0.4mm to 2.54mm. Tolerances typically follow ASTM B704 standards or can be customized per your drawings.

Q3: Are there relevant international certifications?

A3: Yes. The manufacturing facility, Siri Tubing, holds ISO 9001 Quality Management System certification, and product manufacturing complies with PED (Pressure Equipment Directive) requirements. These certifications form part of MTSCO's supply chain management system, ensuring standardized production processes and product safety and reliability.