1. What are the chemical compositions of these nickel-based alloy sheets and plates?
Answer:
Monel 400: Ni ~63%, Cu 28–34%, Fe 2.5%, Mn 2%. Excellent corrosion resistance in seawater and chemical environments.
Monel K500: Similar to Monel 400 but with Al and Ti additions, providing higher strength through precipitation hardening.
Inconel 600: Ni 72%, Cr 14–17%, Fe 6–10%. High resistance to oxidation and corrosion.
Inconel 601: Ni 58%, Cr 21–25%, Fe 12–14%, small Al and Ti. Excellent oxidation resistance at high temperatures.
Inconel 625: Ni 58%, Cr 20–23%, Mo 8–10%, Nb 3–4%. Superior corrosion and heat resistance.
Inconel 718: Ni 52%, Cr 17–21%, Fe 17%, Nb 4.75–5.5%, Mo 2.8–3.3%, Al and Ti for high strength at elevated temperatures.
Nickel 200/201: Ni ≥99%, with very low carbon content in 201. Excellent corrosion resistance in acids and alkalis.
2. What are the main mechanical properties of these sheets and plates?
Answer:
Monel 400: Tensile strength ~550–700 MPa, yield strength ~200–400 MPa, elongation 30–40%.
Monel K500: Tensile strength ~860–1100 MPa, yield strength ~520–690 MPa, elongation 20–25%.
Inconel 600: Tensile strength ~515 MPa, yield strength ~205 MPa, elongation 40%.
Inconel 601: Tensile strength ~650 MPa, yield strength ~275 MPa.
Inconel 625: Tensile strength ~827–965 MPa, yield strength ~414–552 MPa, excellent creep resistance.
Inconel 718: Tensile strength ~1400 MPa, yield strength ~1030 MPa, maintains high strength up to 700°C.
Nickel 200/201: Tensile strength ~380–550 MPa, yield strength ~60–350 MPa, elongation 30–50%.
3. What are the typical applications for these nickel-based alloy sheets and plates?
Answer:
Monel 400/K500: Marine equipment, pumps, valves, chemical tanks, seawater piping.
Inconel 600/601: Furnace parts, heat exchangers, chemical processing equipment.
Inconel 625: Gas turbines, chemical and petrochemical equipment, heat exchangers, marine applications.
Inconel 718: Aerospace components, turbine discs, rocket engines, high-temperature structural parts.
Nickel 200/201: Chemical processing, electroplating equipment, cryogenic vessels, corrosion-resistant sheets.
4. What forms, sizes, and thicknesses are available for these sheets and plates?
Answer:
Forms: Sheets and plates can be supplied hot-rolled, cold-rolled, or annealed depending on the application.
Thickness: Usually from 0.5 mm to 200 mm for sheets and plates.
Dimensions: Standard sheet sizes are 1000×2000 mm, 1500×3000 mm, or custom sizes on request.
Surface Finish: Mill finish, polished, or brushed surface available according to project requirements.
5. How should these nickel-based alloy sheets and plates be handled and maintained?
Answer:
Store in dry, ventilated areas to prevent surface oxidation.
Avoid contact with abrasive materials or corrosive chemicals during handling.
Use proper lifting tools to prevent bending or scratches, especially for thinner sheets.
Clean with non-abrasive, mild solutions if needed before fabrication.
Periodically inspect for surface corrosion or defects, particularly in marine or chemical environments.
