Nickel alloy tube K403

high-temperature

Product Overview
K403 cast superalloy is a nickel-based cast alloy manufactured by Shuaiyi for high-temperature structural applications. Supplied as castings and cast components, it is available with precision casting and machining services to meet dimensional and metallurgical requirements.

Key Advantages

• Competitive pricing and factory-controlled quality
• Annual approvals and inspections: ISO9001, CE, SGS
• Responsive support with 24-hour reply
• Payment methods: Telegraphic Transfer (T/T), Letter of Credit (L/C)
• High production capacity (50,000 tons/month)
• Quick delivery and standard seaworthy export packaging
• OEM/ODM production available

Product Details
Item — Specification
Alloy Or Not — Alloy
Material — Nickel-based cast superalloy
Grade — K403
China ISC No. — C84030
Old Grade — K3
Equivalent Grade — K403 / K3 / ЖС6К
Shape — Casting / Cast Components
Processing Service — Precision casting / Machining
Nickel Content — Remainder
Chromium Content — 10–12%
Molybdenum Content — 3.8–4.5%
Cobalt Content — 4.5–6%
Aluminum Content — 5.3–5.9%
Titanium Content — 2.3–2.9%
Elongation — ≥ 8%
Place of Origin — Zhejiang, China
Brand Name — Shuaiyi
Size — As your requirement
MOQ — 200 kg / Flexible
Standard — GB/T 14992-2025
Package — Standard seaworthy package
Sample — Available

Chemical Composition (%)
Element — Content (%)
C — 0.11–0.18
Cr — 10–12
Ni — Remainder
Co — 4.5–6
W (Tungsten) — 4.8–5.5
Mo — 3.8–4.5
Al — 5.3–5.9
Ti — 2.3–2.9
B — 0.012–0.022
Zr — 0.03–0.08
Ce — ≤ 0.01
Fe — ≤ 0.5
Si — ≤ 0.2
Mn — ≤ 0.2
P — ≤ 0.02
S — ≤ 0.01

Processing & Packaging

• Processing: precision casting and machining; custom cutting, bending, forging; laser, waterjet and plasma cutting supported
• Shape: Casting / Cast Components
• Sizes: manufactured to client specifications
• MOQ: 200 kg (flexible)
• Standard: GB/T 14992-2025
• Package: standard seaworthy export packaging
• Samples: available

Application Scenarios

• Gas turbine guide vanes
• High-temperature castings for industrial turbines
• Turbine rotor blades and structural components
• Turbocharger components
• Other high-temperature power and aerospace cast parts

Why Choose This Alloy

• Formulated for high-temperature strength and dimensional stability
• Comprehensive quality inspection: UT, hydraulic testing, spectrometer; compliance with ASTM/ASME/DIN/JIS where applicable
• Large stock and production capacity to support bulk orders and on-time delivery

Technical Characteristics

• Material type: Nickel-based cast superalloy
• Grade / Model: K403
• Typical chromium: 10–12%
• Typical molybdenum: 3.8–4.5%
• Cobalt: 4.5–6%
• Aluminum: 5.3–5.9%
• Titanium: 2.3–2.9%
• Tungsten (W): 4.8–5.5%
• Carbon: 0.11–0.18%
• Boron: 0.012–0.022%; Zirconium: 0.03–0.08%; Cerium: ≤ 0.01%
• Residual element limits: Fe ≤ 0.5%, Si ≤ 0.2%, Mn ≤ 0.2%, P ≤ 0.02%, S ≤ 0.01%
• Elongation: ≥ 8%
• Form: Casting / Cast Components; precision casting and machining available
• Standard: GB/T 14992-2025
• MOQ: 200 kg (flexible)