Inconel 713C K418 polished bar
Inconel 713C K418 polished bar is a nickel-based precipitation-hardening superalloy designed for high-temperature and high-strength environments. It has a smooth geometric shape and excellent dimensional accuracy through precision machining and surface treatment. It is suitable for industrial fields with strict requirements on surface quality and mechanical properties. The alloy is based on nickel-chromium and contains elements like molybdenum, aluminum, and titanium to form a stable gamma' strengthening phase. Polishing reduces surface defects and improves corrosion and fatigue resistance.
Inconel 713C K418 polished bar is widely used in high-temperature and high-stress conditions, such as in aero-engine blades, gas turbine parts, rocket nozzles, and nuclear energy fasteners. Its excellent corrosion resistance also makes it suitable for chemical valves and pump shafts. It serves high-performance parts like automotive turbochargers and meets the needs of precision assembly and extreme working conditions.
Features of Inconel 713C K418 polished bar
Excellent high-temperature performance: Inconel 713C K418 polished bar can work long-term below 800°C and withstand 1000°C in the short term. It has excellent oxidation and creep resistance.
High mechanical strength: Inconel 713C K418 polished bar is strengthened by gamma' phase precipitation and keeps high strength and hardness at both room and high temperatures.
Corrosion resistance: The chromium in Inconel 713C K418 polished bar provides excellent resistance to oxidation and sulfidation, making it suitable for corrosive media.
Process adaptability: The polished surface of Inconel 713C K418 polished bar reduces stress concentration and improves fatigue life. It is suitable for precision machining or direct assembly.
Material consistency: The strictly controlled smelting process of Inconel 713C K418 polished bar, such as vacuum induction melting, ensures uniform structure and low impurity content.

Applications of Inconel 713C K418 polished bar
Aerospace: Inconel 713C K418 polished bar is used in turbine engine blades, combustion chamber parts, rocket nozzles and other high-temperature load-bearing parts.
Energy industry: Inconel 713C K418 polished bar is used in hot end parts of gas turbines and high-temperature fasteners in nuclear reactors.
Chemical equipment: Inconel 713C K418 polished bar is used to make corrosion-resistant valves, pump shafts and reactor components.
Automotive field: Inconel 713C K418 polished bar is used in high-performance turbocharger rotors and exhaust system components.

|
Parameter |
Specification / Value |
Remarks |
|
Material Standard |
UNS N07713 / GB K418 |
Complies with ASTM, AMS, etc. |
|
Diameter Range |
5mm – 150mm |
Custom sizes available |
|
Length Range |
1m – 6m (straight bars) |
Custom cut lengths possible |
|
Surface Finish |
Polished (Ra ≤ 0.8μm) |
Optional mirror polish or centerless grinding |
|
Tolerance Grade |
h9 – h11 |
High precision (e.g., h7) on request |
|
Tensile Strength (RT) |
≥ 950 MPa |
Typical: 1000–1200 MPa |
|
High-Temp Strength (800°C) |
≥ 550 MPa |
Short-term up to 650 MPa |
|
Hardness |
30–40 HRC |
Up to 45 HRC after heat treatment |
|
Main Composition |
Ni (≥50%), Cr (12–14%), Mo (4–5%), |
Balance trace elements (C, Co, etc.) |
|
Al (5–6%), Ti (0–1%), Fe (≤1%) |
||
|
Density |
8.0 g/cm³ |
- |
|
Operating Temp. |
-200°C to +1000°C |
Long-term use recommended ≤800°C |
FAQ
Are you a factory or manufacturer?
A: Yes, we are a factory but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.
What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.
Why is your product so cost-effective?
A: We cut out the middlemen in the end-to-end manufacturing process and we obtain raw material directly from its source.
Do you do spot quality inspection or full inspection?
A: 100% full inspection for sure. All unqualified products are discarded.
How do you ensure your lead time?
A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.
What is the MOQ of Inconel 713C K418 polished bar ?
A: Depends on quantity, generally, no MOQ limit.
How to pay for it?
A: A bank transfer (T/T) will be acceptable.
What is the delivery time?
A: around 7-20 days which depends on the quantity and production.
What is kind of the package?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo
What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
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