Inconel 625 Nickel Alloy Round Bar EN 2.4856 Rod Custom Cutting in
Length Bright NFC625 Shaft
More Specification Informations
| Products Name | UNS N06625 Nickel Alloy Round Bar / Rod |
| Diameter | 6.0 - 350mm |
| Length | custom cutting any length as request |
| Surface | Black , bright |
| Brand | DELTA |
| Service | cutting, Polishing |
| MOQ | 2 Kgs |
| Other Type | round bar, strip,coil,pipe.sheet, plate,wire.etc |
| Packing | waterproof paper and wooden pallets, wooden box |
| Loading Port | Shanghai Port |
| Price term | EXW,FOB,CIF,CFR |
| Deliver time | within 12 days |
Regular Diameter of Inconel 625 Round Bar in Stock
| 6mm | 8mm | 9mm | 10mm | 12mm | 14mm |
| 15mm | 16mm | 18mm | 19mm | 20mm | 22mm |
| 25mm | 28mm | 30mm | 32mm | 35mm | 38mm |
| 40mm | 42mm | 45mm | 48mm | 50mm | 55mm |
| 60mm | 65mm | 70mm | 75mm | 80mm | 85mm |
| 90mm | 95mm | 100mm | 105mm | 110mm | 115mm |
| 120mm | 125mm | 130mm | 140mm | 150mm | 160mm |
| 170mm | 180mm | 190mm | 200mm | 210mm | 220mm |
| 230mm | 240mm | 250mm | 260mm | 270mm | 280mm |
| 290mm | 300mm | 310mm | 320mm | 330mm | 340mm |
Inconel 625 Nickel Alloy Round Bar EN 2.4856 Rod Custom Cutting in
Length Bright NFC625 Shaft
Inconel 625 (UNS N06625, EN 2.4856, also known as NFC625) is a
premium nickel-chromium-molybdenum alloy renowned for its
exceptional corrosion resistance, high-temperature strength, and
excellent fabricability. The round bar/rod form of this alloy is
widely utilized in critical industrial applications where
durability and performance under harsh conditions are
non-negotiable. Below is a comprehensive overview of its key
attributes, supporting services, and related products.
1. Chemical Composition
The superior performance of Inconel 625 stems from its precisely
balanced chemical composition, which imparts resistance to
corrosion (including pitting, crevice corrosion, and stress
corrosion cracking) and maintains strength at elevated
temperatures. The typical composition (by weight, % max unless
specified) adheres to international standards such as ASTM
B446/B446M and EN 10088-1:
| Element | Content Range (%) | Primary Function |
|---|
| Nickel (Ni) | 58.0 min | Base metal; provides fundamental corrosion resistance and alloy
stability. |
| Chromium (Cr) | 20.0 - 23.0 | Enhances oxidation resistance at high temperatures and resistance
to acidic media. |
| Molybdenum (Mo) | 8.0 - 10.0 | Boosts resistance to pitting/crevice corrosion (especially in
chloride environments). |
| Niobium (Nb) + Tantalum (Ta) | 3.15 - 4.15 | Forms precipitates (e.g., Ni₃Nb) to strengthen the alloy without
heat treatment. |
| Iron (Fe) | 5.0 max | Improves fabricability while minimizing impact on corrosion
resistance. |
| Carbon (C) | 0.10 max | Controlled to reduce carbide precipitation (avoids intergranular
corrosion). |
| Manganese (Mn) | 0.50 max | Aids in deoxidation during manufacturing; low content prevents
brittleness. |
| Silicon (Si) | 0.50 max | Enhances fluidity during casting; controlled to avoid oxide
inclusions. |
| Phosphorus (P) | 0.015 max | Minimized to prevent brittleness and intergranular corrosion. |
| Sulfur (S) | 0.015 max | Strictly limited to improve weldability and reduce hot cracking
risk. |
2. Mechanical Properties
Inconel 625 round bars exhibit outstanding mechanical strength—both
at room temperature and high temperatures (up to
1,093°C/2,000°F)—without relying on heat treatment (it achieves
strength through cold working or solid-solution strengthening). The
following values are typical for annealed round bars (per ASTM
B446/B446M), with variations based on bar diameter and cold-working
degree:
| Property | Test Condition | Typical Value | Unit |
|---|
| Tensile Strength (UTS) | Room Temperature | 827 - 965 | MPa |
| Yield Strength (0.2% offset) | Room Temperature | 414 - 551 | MPa |
| Elongation at Break | Room Temperature (2in gauge) | 30 - 40 | % |
| Hardness (Rockwell B) | Room Temperature | 80 - 95 | HRB |
| Tensile Strength (UTS) | At 650°C (1,200°F) | 551 - 620 | MPa |
| Yield Strength (0.2% offset) | At 650°C (1,200°F) | 310 - 379 | MPa |
Key Advantage: The alloy retains over 60% of its room-temperature
strength at 650°C, making it ideal for high-heat applications like
gas turbine components.
3. Equivalent / (Similar Grades)
Inconel 625 is standardized globally under different designations,
ensuring consistency across industries and regions. The most common
equivalent grades are:
| Standard/Region | Grade Designation | Key Application Match |
|---|
| ASTM (USA) | UNS N06625 | Aerospace, chemical processing |
| EN (Europe) | EN 2.4856 | Oil & gas, marine engineering |
| AMS (Aerospace, USA) | AMS 5666, AMS 5837 | Aircraft engine parts, rocket components |
| DIN (Germany) | W. Nr. 2.4856 | Industrial furnaces, heat exchangers |
| JIS (Japan) | NCF 625 | Petrochemical, power generation |
| GB (China) | NS336 | Chemical equipment, offshore structures |
4. Custom Cutting Service for Round Bars
To meet diverse project requirements, we offer precision custom
cutting for Inconel 625 round bars (EN 2.4856 rods/NFC625 shafts),
with the following capabilities:
- Cutting Methods: Utilizes advanced CNC sawing, laser cutting, and
waterjet cutting to ensure clean, burr-free edges and minimal
material waste.
- Length Customization: Supports both small and large orders, with
length ranges from 50mm (2in) to 6,000mm (20ft). Tolerances as
tight as ±0.1mm are available for high-precision applications
(e.g., aerospace shafts).
- Surface Finish: The "Bright" finish option (as referenced in the
title) features a smooth, polished surface (Ra ≤ 0.8μm) that
reduces friction, resists contamination, and eliminates the need
for additional post-processing in critical assemblies.
- Quality Assurance: Each cut bar undergoes dimensional inspection
(via calipers or laser measurement) and surface quality checks to
comply with ASTM B446/B446M and customer specifications.
5. Applications
Inconel 625 round bars/rods are trusted in industries where failure
is costly or dangerous, thanks to their corrosion and
high-temperature resistance. Key applications include:
- Aerospace & Defense: Engine shafts, turbine blades, fasteners, and
rocket motor casings (resists high heat and fuel corrosion).
- Oil & Gas: Downhole drill collars, wellhead components, and subsea
pipelines (withstands sour gas, saltwater, and high pressure).
- Chemical Processing: Heat exchanger tubes, reactor vessels, and
pump shafts (resists acids like sulfuric acid, hydrochloric acid,
and acetic acid).
- Power Generation: Boiler tubes, steam turbine components, and
nuclear reactor parts (maintains strength under high pressure and
temperature).
- Marine Engineering: Propeller shafts, seawater valves, and offshore
platform hardware (resists seawater corrosion and biofouling).
- Medical Devices: Surgical instruments and implantable components
(biocompatible and resistant to bodily fluids).
6. Other Inconel 625 Products
Beyond round bars/rods, Inconel 625 is available in a full range of
forms to support end-to-end manufacturing needs:
- Sheet & Plate: Used for pressure vessels, heat exchanger shells,
and structural components (thickness: 0.5mm - 100mm).
- Tube & Pipe: Seamless and welded tubes for fluid transport in
chemical and power industries (OD: 6mm - 219mm).
- Wire & Wire Mesh: For high-temperature gaskets, filters, and
electrical components (wire diameter: 0.1mm - 5mm).
- Fasteners: Bolts, nuts, washers, and studs (compliant with ASTM
F468) for critical joints in aerospace and oil & gas.
- Forgings: Custom forgings (e.g., valve bodies, turbine disks) for
high-stress applications requiring uniform grain structure.
- Welding Consumables: Wires (ERNiCrMo-3) and electrodes (ENiCrMo-3)
for joining Inconel 625 components while maintaining corrosion
resistance.
