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Help CenterPrecision Alloy 4J29 and Invar 36 for Thermal Expansion Control and Glass/Ceramic Sealing
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Nickel Alloy Products – Engineered Materials for Extreme Environments
Nickel alloys are high-performance materials with nickel as the primary element (typically ≥30% Ni, up to 99%+ for pure nickel). By adding chromium, molybdenum, copper, tungsten, aluminum, and titanium, these alloys deliver exceptional corrosion resistance, high-temperature strength, and fatigue resistance that cannot be matched by standard stainless steels.
Nickel alloys are the preferred choice when:
Stainless steel fails – In reducing acids (HCl, H₂SO₄), wet chlorine, or high-chloride environments
High temperatures – Above 600°C, where creep and oxidation become critical
Extreme corrosion – In sour gas (H₂S/CO₂), seawater, or mixed acid service
Critical safety applications – Aerospace, nuclear, pharmaceutical, offshore platforms
Key alloy families we supply:
Alloy Family |
Representative Grades |
Key Characteristics |
Hastelloy® (Ni-Cr-Mo) |
C-276, C-22, B-3, G-30, Alloy 59 |
Outstanding corrosion resistance in reducing/oxidizing acids |
Inconel® (Ni-Cr-Fe) |
600, 601, 617, 625, 718, X-750 |
High-temperature strength + oxidation/corrosion resistance |
Monel® (Ni-Cu) |
400, K-500 |
Excellent seawater and hydrofluoric acid resistance |
Incoloy® (Ni-Fe-Cr) |
800, 825, 925 |
Cost-effective, good high-temperature/corrosion performance |
Pure Nickel |
Ni200, Ni201 |
Exceptional caustic alkali resistance, high conductivity |
Precision Alloys |
Invar 36, Kovar 4J29, 4J42 |
Controlled thermal expansion, glass/ceramic sealing |
Product forms available:
Plate, sheet, coil, pipe (seamless/welded), tube, round bar, flat bar, square bar, forging (flanges, rings, discs), fittings (elbows, tees, reducers), welding wire, welding rod.
Each batch includes EN 10204 3.1 mill test certificate with full chemical, mechanical, and corrosion test data. PMI 100% tested. MOQ: 100 kg for trial orders.
Q1：Do you offer sample orders？
A：Yes, samples are available for quality evaluation. Sample cost is charged but refundable upon bulk order.
Q2：What is your MOQ？
A：Our standard MOQ is 100 kg per specification. For common grades and standard sizes, we accept small batch orders. Mixed orders for different products are also welcome.
Q3：Can you provide custom sizes？
A：Yes, we can produce any length, width, thickness, or diameter based on your drawings. Cutting, slitting, and other processing services are available with tolerance as required.
Q4：What certifications do you provide？
A：Each shipment comes with EN 10204 3.1 mill test certificate (MTC). Third-party inspection reports (SGS/BV/TÜV) can be arranged upon request.
Q5：What is your lead time？
A：7–15 working days for stock items. 20–30 days for custom orders, depending on quantity and specification.
Q6：What surface treatments are available？
A：Various surface treatments are available upon request, including pickled, polished, coated, oiled, or as required.
Q7：What payment terms do you accept？
A：T/T (30% deposit + 70% against BL copy), L/C at sight, Western Union, etc.
Q8：What about packaging for export？
A：Standard seaworthy packaging with waterproof protection, steel straps, corner protectors, and ISPM 15 fumigation certification. Custom packaging is available as required.
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