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K213
DLX
Customized
ISO9001, ROHS
10PCS
10-25 days
Nickel-based casting superalloy
Product Description
K213 is a high-performance iron-nickel-chromium based casting superalloy specifically designed for automotive powertrain components exposed to intense thermal stress, most notably engine exhaust valves and turbocharger rotors. As a leading manufacturer, DLX Alloy provides VIM-melted K213 master alloy bars optimized for mass-market investment casting. Operating reliably at service temperatures up to 750°C, K213 bridges the gap between traditional stainless steels and expensive nickel-only alloys, offering an exceptional cost-to-performance ratio. Its refined chemical matrix ensures superior oxidation resistance and structural stability during the rapid thermal cycles of modern high-efficiency engines, preventing valve seat wear and ensuring long-term seal integrity.
Specification
Material Grade | K213 (Fe-Ni Based) |
Alloy Type | Iron-Nickel Superalloy |
Melting Technology | Vacuum Induction Melting (VIM) |
Density | 8.1 g/cm³ |
Max Service Temperature | 750 °C |
Tensile Strength (20°C) | ≥ 785 MPa |
Yield Strength (20°C) | ≥ 590 MPa |
Elongation (A5) | ≥ 12 % |
Standard Compliance | GB/T 14992, Industrial Grade |
Chemical composition%
Element | Ni | Cr | W | Mo | Ti | Al | V | B | Fe |
|---|---|---|---|---|---|---|---|---|---|
Content (%) | 34.0-38.0 | 14.0-16.0 | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 0.1-0.5 | 0.1-0.5 | 0.01-0.02 | Bal |
Targeted Oxidation Protection: Engineered to form a dense, protective oxide scale that resists hot gas erosion in internal combustion environments.
High Thermal Fatigue Resilience: Formulated to withstand the repeated heating and cooling phases of automotive engines without crack initiation.
VIM-Enhanced Purity: Vacuum Induction Melting ensures low inclusion levels, improving the surface finish and yield rate of complex valve castings.
Optimized Creep Resistance: Maintains geometric stability under high-speed reciprocating stress at 700°C+ service windows.
Excellent Weldability: The Fe-Ni-Cr balance facilitates easy friction welding to valve stems, streamlining the automotive manufacturing process.
Applications
Aluminum and titanium form γ′ precipitates within the Fe-Ni-Cr matrix, helping the finished casting retain mechanical strength at elevated temperatures.
A controlled tungsten addition strengthens the alloy matrix and contributes to creep and load-bearing performance.
Boron contributes to grain-boundary behavior, but its content must be controlled because it can also influence solidification and grain-boundary constituent formation.
K213 is designed to provide useful time-dependent deformation resistance in qualified industrial applications operating below approximately 750°C.
Chromium and aluminum support oxidation resistance, making the alloy suitable for components exposed to hot exhaust gas and repeated thermal cycles.
DLX Advantage
CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got ISO9001 International Quality Management System Certificate and SGS Certificate. DLX Alloy manufactures and supplies casting master alloys for industrial investment foundries and high-temperature component producers.
Our K213 supply program can be configured around the customer’s chemical specification, furnace charge size, bar dimensions, documentation and delivery schedule. Heat-number identification supports traceability from alloy production through packing and shipment.
FAQ
K213 is a precipitation-hardened Fe-Ni-Cr equiaxed casting superalloy. It contains approximately 34–38% nickel and is strengthened by γ′ precipitates, tungsten and controlled grain-boundary additions.
Its balanced Cr and Ni content provides a robust barrier against the sulfur and lead compounds often found in industrial and automotive fuels.
It is remelted by foundries to produce turbocharger turbine wheels, turbine blades, impellers and other heat-resistant industrial castings.
