Monel k500 supplier. Contact us to get free quote and sample!
Monel k500 is based on Monel 400, this nickel-copper-based superalloy incorporates precisely proportioned aluminum (2.3-3.15%) and titanium (0.35-0.85%) elements, coupled with an innovative aging treatment, to achieve a perfect balance of corrosion resistance and mechanical strength.
Monel k500 pipe supplier
With 15 years of export excellence, HT PIPE is your reliable stockist and exporter. Our portfolio includes monel k500 pipes, plates, round bars, and a wide array of fittings, flanges, and welding accessories. Contact us today for no-obligation pricing and product details-we're ready to support your projects.
Monel k500 Phase Transformation Strengthening Mechanism
During the solution treatment stage (980-1020°C), aluminum, titanium, and other elements fully dissolve in the nickel-copper matrix, forming a supersaturated solid solution. Subsequently, during a two-stage aging process (primary stage at 590-620°C for 6-8 hours, followed by secondary stage at 480-520°C for 8-12 hours), nanoscale γ' phase (Ni₃(Al,Ti)) uniformly precipitates, creating a strong dislocation pinning effect. This precipitation strengthening mechanism allows the tensile strength to reach 1000-1150 MPa while maintaining the corrosion resistance of the matrix.
Monel K500 pipe achieves mechanical properties unmatched by ordinary stainless steel through a composite strengthening mechanism. In the age-hardened state, it achieves a tensile strength of 1000-1150 MPa, a yield strength of 750-827 MPa, a hardness of 28-35 HRC, and an excellent elongation of 20-30%.
alloy k500 pipe Corrosion Resistance in Extreme Environments
- Acidic Media: The corrosion rate in 20% sulfuric acid is only 0.13 mm/year, and it can withstand sulfuric acid environments below 85%. In hydrofluoric acid, its performance surpasses Hastelloy alloy, making it one of the few materials resistant to high concentrations of hydrofluoric acid.
- Alkaline Environments: Resists hot concentrated alkali corrosion, with a corrosion rate of less than 0.05 mm/year in a boiling 50% NaOH solution, significantly superior to 304 stainless steel.
- Marine Environments: The corrosion rate in flowing seawater is ≤0.025 mm/year, virtually immune to chloride stress corrosion cracking (SCC), with a PREN value (pitting resistance equivalent) exceeding 40.
- Special Media: Resistant to hydrogen sulfide stress cracking (SSC) in sour oil and gas environments, it offers excellent resistance to hydrogen embrittlement and is suitable for sour natural gas transportation.
ASTM B165 UNS N05500 Thermal Stability
Monel K500 pipe exhibits exceptional stability in high-temperature applications. Its oxidation resistance temperature reaches up to 600°C, and its corrosion rate in high-temperature steam environments (300-400°C) is less than 0.026 mm/year. This stability stems from two mechanisms: First, the dense oxide film formed by its high nickel content (>63%). Secondly, the coarsening rate of the γ' phase at high temperatures is extremely slow. Even after long-term exposure to temperatures below 480°C, the strength loss remains below 15%.
2.4375 Monel K500 Forming Process
- Hot Forming: Hot rolling/hot extrusion temperatures are strictly controlled within the 1038-1149°C range, with a final rolling temperature ≥ 850°C to avoid grain boundary weakening and cracking in the low-temperature region.
- Cold Working: Cold rolling/cold drawing deformation must be controlled to ≤50%, with intermediate annealing (750°C x 1h) required between passes to restore plasticity.
