UNS N06625 Nickel Alloy Forgings (ASTM B564 Compliant) – High-Temp & Corrosion Resistant

UNS N06625 Nickel Alloy Forgings (ASTM B564 Compliant) – High-Temp & Corrosion Resistant

UNS N06625 Nickel Alloy Forgings are premium-grade nickel-based alloy components manufactured in accordance with ASTM B564 specifications. Known for their exceptional performance in high-temperature and highly corrosive environments, these forgings are widely used in critical industrial applications where strength, durability, and material integrity are essential.

Material Characteristics – UNS N06625 (Alloy 625)

UNS N06625, commonly referred to as Alloy 625, is a nickel-chromium-molybdenum alloy strengthened by solid-solution elements. The addition of molybdenum and niobium provides superior mechanical strength and outstanding resistance to localized corrosion without requiring precipitation heat treatment.

Material Properties of UNS N06625

Extreme Temperature Resistance

Maintains mechanical strength up to 1000°C (1832°F) — ideal for high-heat applications like aerospace engines or chemical reactor components.

Superior Corrosion Resistance

Resists pitting, crevice corrosion, and stress corrosion cracking in harsh environments (e.g., seawater, sulfuric acid, chloride-rich solutions).

High Mechanical Strength

Excellent tensile, fatigue, and creep strength, even after long-term exposure to extreme conditions.

Weldability & Fabricability

Can be welded, machined, and formed into complex shapes (critical for custom industrial components).

Key Specifications

Product Description & Forms

These forgings are supplied as solid nickel alloy billets, blocks, and cylindrical forgings, designed for further machining into finished components. The forged structure ensures improved grain flow, enhanced mechanical performance, and superior reliability compared to cast or rolled products.

Available Sizes:

1. Standard and custom diameters and lengths
2. Machining allowances provided as required
3. Large-section forgings available upon request

Dimensions: 

• Diameter: 225 mm × Height: 225 mm

• Diameter: 310 mm × Height: 245 mm

Custom sizes, weights, and machining allowances are available upon request.

Superior INCONEL 625 Alloy: INCONEL 625 (UNS N06625) is a solid solution strengthened nickel-based superalloy with molybdenum and niobium as the main strengthening elements. It does not achieve strength through precipitation hardening, but rather relies on the solid solution strengthening of the nickel-chromium matrix by molybdenum and niobium. This gives it stable and excellent mechanical properties over a wide temperature range.

Advantages of Precision Forging: Compared to traditional machining methods, precision forging significantly refines the grain structure of the material, thereby improving the strength, toughness, and fatigue resistance of the product. This means that the forged rings you provide can withstand extremely high mechanical and thermal stresses, resulting in a longer service life in harsh environments. The forging process also eliminates internal defects, improving the density and integrity of the material.

Typical Applications

ASTM B564 UNS N06625 nickel alloy forgings are widely used in industries requiring extreme durability and corrosion resistance, including:

• Oil & gas equipment (valve bodies, stems, flanges)

• Chemical processing components

• Marine and offshore structures

• Power generation and heat-resistant parts

• Aerospace and high-stress mechanical components