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Nickel Alloy tubes
Technical Specifications: Nickel Alloy Tubing (400, 600, 625, 800, 825,C276)
To guarantee the highest reliability in mission-critical environments, GAOLIN TECH provides comprehensive technical data for our Bright Annealed (BA) nickel alloy tubing. All products are manufactured and tested to meet or exceed ASTM/ASME standards.
1. Chemical Composition (Typical Values %)
We strictly control the metallurgical purity and impurity elements to ensure structural stability and superior corrosion resistance.
2. Chemical and Mechanical Properties (At Room Temperature)
Our advanced cold-drawing and bright annealing (BA) processes ensure a perfect balance between high tensile strength and excellent ductility.
Material Grade | UNS Designation | Specifications | Ni | Cr | Fe | Mo | Others |
Alloy 400 | UNS N04400 | ASTM B163 / B165 | 63.0 min | — | 2.5 max | — | Cu: 28.0 - 34.0 |
Alloy 600 | UNS N06600 | ASTM B163 / B167 | 72.0 min | 14.0 - 17.0 | 6.0 - 10.0 | — | Cu: 0.5 max |
Alloy 625 | UNS N06625 | ASTM B444 / B704 | 58.0 min | 20.0 - 23.0 | 5.0 max | 8.0 - 10.0 | Nb: 3.15 - 4.15 |
Alloy 800 | UNS N08800 | ASTM B163 / B407 | 30.0 - 35.0 | 19.0 - 23.0 | 39.5 min | — | Al: 0.15 - 0.60 |
Alloy 825 | UNS N08825 | ASTM B163 / B423 | 38.0 - 46.0 | 19.5 - 23.5 | 22.0 min | 2.5 - 3.5 | Cu: 1.5 - 3.0 |
Alloy C276 | UNS N10276 | ASTM B622 / B619 | 57.0 min | 14.5 - 16.5 | 4.0 - 7.0 | 15.0 - 17.0 | W: 3.0 - 4.5 |
Grade | Tensile Strength (Rm MPa) | Yield Strength (Rp 0.2 MPa) | Elongation (A5 %) | Hardness (Typical) |
Alloy 400 | ≥480 | ≥195 | ≥35 | ≤75 HRB |
Alloy 600 | ≥550 | ≥240 | ≥30 | ≤80 HRB |
Alloy 625 | ≥827 | ≥414 | ≥30 | ≤25 HRC |
Alloy 800 | ≥520 | ≥205 | ≥30 | ≤80 HRB |
Alloy 825 | ≥585 | ≥240 | ≥30 | ≤85 HRB |
Alloy C276 | ≥690 | ≥283 | ≥40 | ≤90 HRB |
3. Core Testing & Quality Control
GAOLIN TECH performs more rigorous testing than standard industry requirements to ensure "Zero-Defect" delivery for high-pressure and high-purity applications.
Test Item | Industry Standard Requirement | GAOLIN TECH Standard |
Internal Finish | Ra 0.8μm - 1.6μm (Pickled) | Ra≤0.4μm (Bright Annealed) |
Leak Testing | Random Hydrostatic Testing | 100% Individual High-Pressure Test |
Defect Detection | Visual Inspection | 100% Full-Length Eddy Current Test |
Dimensional Control | Standard ASTM Tolerance | Precision Tolerance (30% Tighter) |
Intergranular & Corrosion | Basic Compliance | ASTM G28 Methods A/B Verification |
4.Why Choose GAOLIN TECH for Nickel Alloys?
● Vast Raw Material Inventory: We stock premium nickel alloy raw materials to offer rapid lead times (2-4 weeks), bypassing the long waits typical of the global market.
● Bright Annealing (BA) Excellence: Unlike common pickled tubes, our BA tubes provide a mirror-like finish and unmatched internal cleanliness.
● Ready-to-Ship Solutions: With a stable supply chain and strict quality control, we ensure your high-performance tubing is ready when your project demands it.
Contact us today for a technical consultation or a rapid quote.
