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K4169 Casting Superalloy Bar for Fasteners Factory Price
Premium K4169 master alloy bar and 718 casting superalloy rod designed for oil and gas applications. High-strength nickel-based precipitation-hardening alloy with excellent corrosion resistance, high-temperature performance up to 650–700°C, and superior castability. Ideal for critical structural components in harsh petrochemical and energy environments.
- Overview
- Specification
- Applications
- Company Profile
- FAQs
- Recommended Products
Introduction to K4169 Casting Superalloy Rod
K4169 is a Ni-Cr-Fe based superalloy strengthened primarily by γ″ (Ni₃Nb) precipitates with supporting γ′ phases. It delivers high tensile and yield strength, excellent resistance to corrosion and stress corrosion cracking, good radiation resistance, and reliable long-term microstructural stability.
As a master alloy bar / casting rod, K4169 provides consistent chemistry and clean melting characteristics, enabling high-quality castings with fine grain structures and superior mechanical properties. Typical density is approximately 8.22 g/cm³ and melting range is 1243–1359°C. The alloy is widely specified for components operating under high pressure, corrosive media, and elevated temperatures in oil and gas extraction, refining, and processing systems.
Product Features of K4169 Casting Superalloy Rod
√Superior Sour Gas Resistance: Specifically alloyed to resist sulfide stress cracking (SSC) and hydrogen embrittlement in H2S-rich environments.
√High-Pressure Structural Integrity: Maintains a yield strength of ≥725MPa, providing the safety margins required for API 6A high-pressure wellhead tools.
√VIM-Enhanced Purity: Advanced vacuum induction melting reduces oxygen and nitrogen levels (O≤15ppm), ensuring defect-free castings for high-pressure seals.
√Excellent Post-Cast Weldability: Niobium-stabilized matrix allows for the successful repair and assembly welding of large valve manifolds.
√Broad Thermal Range Resilience: Maintains mechanical toughness from cryogenic subsea temperatures up to 650°C gas injection environments.
Chemical composition%
Applications of K4169 Casting Superalloy Rod Manufacturer
K4169 master alloy bars and 718 casting superalloy rods are extensively used to produce high-integrity cast components for demanding service environments:
- Oil and gas industry – valves, pump casings, manifolds, wellhead equipment, and pressure-containing parts exposed to corrosive hydrocarbons and sour environments
- Petrochemical processing – reactor components, heat exchanger parts, and structural castings requiring high strength and corrosion resistance
- Aerospace and power generation – engine casings, diffuser housings, bearing supports, and structural castings operating below 650°C
- Nuclear and energy infrastructure – components requiring radiation resistance and long-term reliability
- Precision casting of complex geometries where high strength-to-weight ratio and dimensional stability are critical
CHANGZHOU DLX ALLOY CO., LTD functions as a high-security metallurgical node for the global energy infrastructure, emphasizing the "Corrosion Lifecycle" of materials in extreme high-pressure environments. Since 2002, our 12,000 m² facility has moved beyond standard manufacturing by establishing a dedicated Deep-Water Metallurgical Archiving system. For critical alloys like K4169 (Cast 718), we don't just record chemical batches; we maintain a comprehensive performance archive that correlates VIM melting parameters with real-world sulfur-resistance and long-term chloride stability data. We recognize that in the oil and gas sector, the true value of a master alloy is proven years after installation at the seabed. By providing our partners with a transparent "Metallurgical Fingerprint" and data-backed lifecycle assurance, we empower energy engineers to deploy subsea valves and downhole tools with the highest degree of corrosion-resistance certainty.
FAQs:
1.What are the key advantages of K4169 for oil and gas applications?
High strength and ductility across a wide temperature range, excellent corrosion and stress-corrosion cracking resistance, good weldability, and reliable performance in sour and aggressive chemical environments common in oil and gas service.
2.What is the typical service temperature range?
K4169 offers excellent properties from cryogenic temperatures (-253°C) up to continuous service around 650°C, with short-term capability approaching 700°C depending on load conditions.
3.In what forms is the material supplied?
Primarily as master alloy bars and rods optimized for vacuum melting and casting. Other forms may be available upon request to support specific casting or manufacturing requirements.
