ASTM B622 Hastelloy c2000 UNS N06200 pipe and tube manufacturer, supplier, contact us for free quote and sample!
Hastelloy C2000 is a nickel-based high-performance alloy pipe. Its unique multi-element synergistic design enables it to exhibit excellent corrosion resistance in both oxidizing and reducing media. HT PIPE is a Hastelloy c2000 Pipe supplier with 15+ export experience. Contact us for more information and quotes for free!
Chemical composition of hastelloy N06200 pipe
The chemical composition of C2000 alloy is based on nickel (Ni, ≥59%), and the core alloying elements include molybdenum (Mo, 15.0%-17.0%), chromium (Cr, 22.0%-24.0%) and copper (Cu, 1.3%-1.9%), and contains a small amount of cobalt (Co, ≤2.0%), iron (Fe, ≤3.0%), manganese (Mn, ≤0.50%) and carbon (C, ≤0.01%).
Physical and mechanical properties of alloy N06200 pipe
The density of C2000 pipe is about 8.50 g/cm³, the liquidus temperature is about 1370°C, the thermal conductivity (20°C) is 10.8 W/(m·K), and the linear expansion coefficient (20°C-200°C) is 12.3×10⁻⁶/°C. Its room temperature mechanical properties are tensile strength ≥690 MPa, yield strength (0.2% offset) ≥310 MPa, elongation ≥45%, and hardness is usually controlled at 80-95 HRB. In terms of high temperature performance, the tensile strength can still be maintained at about 450 MPa at 600°C.
Oxidizing media corrosion resistance of hastelloy c2000 tube
High chromium content promotes the formation of passivation film, which can withstand boiling nitric acid (concentration ≤40%), chromic acid and solutions containing high-valent metal ions (such as Fe³+, Cu²+), and the corrosion rate is less than 0.1 mm/year.
Reducing media corrosion resistance alloy c2000 pipe
The synergistic effect of molybdenum and copper makes it perform well in hydrochloric acid (concentration ≤20%), sulfuric acid (concentration ≤70%) and H₂S-containing oil and gas environments, especially in mixed acids (such as HCl+HNO₃), where the corrosion rate is reduced by more than 50% compared with C276.
Local corrosion resistance of hastelloy c2000 welded tube
The pitting resistance equivalent (PREN=Cr%+3.3×Mo%+16×N%) exceeds 80, which can resist pitting and crevice corrosion in high-chlorine environments such as seawater and brine, at the same time, its low impurity content design greatly reduces the risk of stress corrosion cracking (SCC).
Hot forming of c2000 alloy seamless tube
It is recommended to control the heating temperature at 1040°C-1175°C, and rapid water cooling is required after hot bending or flaring to maintain the corrosion resistance of the material.
Cold processing of n06200 alloy pipe
The single deformation amount needs to be controlled (usually ≤15%), and complex forming requires intermediate annealing (annealing temperature 1120°C-1175°C).
Welding process of hastelloy c2000 pipe
Tungsten inert gas welding (TIG) is preferred, ERNiCrMo-17 (AWS A5.14) is recommended as welding wire, and the welding current is 10%-20% lower than that of 304 stainless steel. After welding, 1065°C-1120°C solid solution treatment is required to eliminate the risk of σ phase precipitation in the heat-affected zone.
Machining of hastelloy UNS N06200 pipe
Carbide tools are used, and the cutting speed is controlled at 20-30 m/min to avoid increased tool wear due to work hardening.
