High Performance Incoloy 800 High Temperature Alloy Strip for Power Generation Applications

1. Product Information‌

• ‌Designation‌: Incoloy 800 (UNS N08800)

• ‌Standards‌: ASTM B409, ASME SB409, DIN 17742

• ‌Chemical Composition‌:
  Ni 30-35%, Cr 19-23%, Fe ≥39.5%, C ≤0.1%, Al 0.15-0.6%, Ti 0.15-0.6%

• ‌Dimensions‌:
  Thickness: 0.1–6.0 mm, Width: 20–1500 mm

• ‌Supply Condition‌:
  Hot-rolled annealed (HRA), cold-rolled hard (H04), semi-hard (H02)

‌2. Key Characteristics‌

• ‌Oxidation Resistance‌: Sustains operation at 600°C+ with oxidation weight gain of ≤0.8 mg/cm² after 1,000 hours at 900°C. Cr/Ni ratio (~0.6) minimizes sulfidation corrosion (<0.05 mm/year in sulfur-rich environments).

• ‌Mechanical Properties‌: Tensile strength 550–850 MPa, elongation ≥30%, Vickers hardness 160–220 HV.

• ‌Thermal Stability‌: Resists carburization 1.5× better than standard austenitic alloys due to Al/Ti stabilization.

‌3. Production Technology‌

• ‌Melting Process‌: Triple refining via Electric Arc Furnace (EAF) for carbon control, Argon Oxygen Decarburization (AOD) for Cr/Ni ratio optimization, and Vacuum Degassing (VD) to reduce hydrogen to <1.5 ppm.

• ‌Rolling‌: 20-high Sendzimir mill ensures ±0.005 mm thickness tolerance.

• ‌Annealing‌: Continuous bright annealing under N₂/H₂ atmosphere achieves surface roughness Ra ≤0.3 µm.

‌4. Material Theory‌

• ‌Phase Strengthening‌: Utilizes titanium-aluminum synergy to form gamma prime (γ') phase precipitates.

• ‌Oxide Layer‌: Cr₂O3 scale with Pilling-Bedworth Ratio (PBR) of 2.07 ensures self-healing capability.

• ‌Microstructural Stability‌: High Ni content prevents sigma phase formation up to 650°C.

‌5. Applications‌

• ‌Petrochemical‌: Ethylene cracking furnace tubes (15+ years lifespan).

• ‌Thermal Processing‌: Rollers for continuous annealing furnaces (850–1,050°C).

• ‌Nuclear‌: Superheater tubing in nuclear reactors.

• ‌Industrial Components‌: Expansion joints for chemical reactors (30% axial displacement tolerance).

6. Parameters

Chemical Composition (%)
	C	Mn	Si	S	Al+Ti		Cr	Ni		Fe	Cu
Incoloy 800	≤0.1	≤1.5	≤1.0	≤0.015	0.3~1.2		19.0~23.0	30.0~35.0		bal	≤0.75

Our Advantage

1. Market Leader

Top 5 in China's nonferrous metal industry

2. Flexible products

Thousands of product specifications,Meet multiple needs of buyers

3. Low MOQ

Can customize samples

4. Short production lead time，fast delivery of whole cabinet

5. Professional inspection equipment

Before delivery, we will use spectrometers, tensile testers and other professional equipment to conduct a comprehensive inspection of the products to ensure that the goods are qualified for acceptance

6. Professional business team

Quickly responds to customer inquiries,24-hour professional quotation online

The salesperson will follow the customer's requirements for the use of the product,Professionally recommend more appropriate performance and price products to customers

7. Intact packaging

Packaging according to customer needs.You can customize wooden boxes to ensure that the goods arrive at the destination in good condition

8. Various payment methods

Facilitate customer payment

9. Get good reviews from customers

Old customers have long-term cooperation,The longest is more than 7 years

10. Received various awards

Google is very recognized by us,They give us awards every year