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UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars
UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars
UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars
UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars
UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars
UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars
UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars
UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars
Specifications
Brand Name :
DELTA
Model Number :
UNS N06625 / 625
Certification :
ISO
Place of Origin :
China
MOQ :
500 kgs
Price :
30 - 35 USD/Kg
Payment Terms :
L/C, T/T, Western Union
Supply Ability :
3 Ton per week
Delivery Time :
5 - 12 days based on the quantity
Packaging Details :
standard packing for export
Products :
Nickel Alloy Plate
Grade :
UNS N06625 / 625
Diameter :
6 - 350mm
Length :
custom cutting any length as request
Standard :
ASTM EN
Service :
Cutting
Loading Port :
Shanghai Port
Surface :
black , bright
Description

UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars

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

UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars

Inconel 625 (designated as UNS N06625) is a premium nickel-chromium-molybdenum alloy renowned for its exceptional corrosion resistance, high-temperature strength, and structural stability—making its round bar form a staple in demanding industrial applications. Below is a comprehensive overview of its parameters, properties, standards, equivalent grades, key features, and typical uses, with a focus on the 6–350mm diameter range for hot rolled and bright bars.

1. Basic Parameters

The UNS N06625 round bars (Inconel 625) covered here adhere to strict dimensional and material specifications, with key parameters outlined as follows:

Parameter Category Details
Alloy Designation UNS N06625, Werkstoff No. 2.4856, ASTM B446 (primary for round bars)
Diameter Range 6mm – 350mm (covers small precision bars to large structural bars)
Surface Finish - Hot Rolled Bars: Matte, slightly rough surface (Ra 6.3–12.5μm), suitable for machining or further processing.
- Bright Bars: Polished/smooth surface (Ra 0.8–3.2μm), ideal for applications requiring aesthetic or low-friction performance.
Length Standard: 2–6 meters (custom lengths available upon request)
Heat Treatment Typical: Solution annealing at 980–1150°C (1800–2100°F), followed by rapid quenching (water or air cooling) to optimize corrosion resistance and ductility.
Chemical Composition Nickel (Ni): ≥58%; Chromium (Cr): 20–23%; Molybdenum (Mo): 8–10%; Niobium (Nb) + Tantalum (Ta): 3.15–4.15%; Iron (Fe): ≤5%; Carbon (C): ≤0.10%; Manganese (Mn): ≤0.50%; Silicon (Si): ≤0.50%; Phosphorus (P): ≤0.015%; Sulfur (S): ≤0.015%.

2. Mechanical & Physical Properties

Inconel 625 round bars exhibit outstanding mechanical strength (even at elevated temperatures) and stable physical properties, making them suitable for harsh environments:

2.1 Mechanical Properties (After Solution Annealing)

Property Value (Typical) Test Standard
Tensile Strength ≥827 MPa (120 ksi) ASTM E8
Yield Strength (0.2% Offset) ≥414 MPa (60 ksi) ASTM E8
Elongation (in 50mm) ≥30% ASTM E8
Hardness (Brinell) ≤248 HB ASTM E10
Impact Toughness (Charpy V-Notch, 20°C) ≥100 J (74 ft-lb) ASTM E23

2.2 Physical Properties

Property Value (at 20°C unless noted)
Density 8.44 g/cm³ (0.305 lb/in³)
Thermal Conductivity 11.8 W/(m·K) (82 Btu·in/(ft²·h·°F))
Coefficient of Thermal Expansion (20–100°C) 12.8 × 10⁻⁶/°C (7.1 × 10⁻⁶/°F)
Electrical Resistivity 1.29 × 10⁻⁶ Ω·m (771 Ω·cir-mil/ft)
Melting Range 1290–1350°C (2350–2460°F)

3. Manufacturing & Quality Standards

UNS N06625 round bars (Inconel 625) are produced and inspected in compliance with international standards to ensure consistency and performance:

Standard Type Relevant Standards
Material Standards - ASTM B446: Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloy (UNS N06625) Bar, Rod, and Wire
- ASME SB446: Boiler and Pressure Vessel Code (BPVC) approval for pressure-containing components
- DIN EN 10269: European standard for nickel alloy bars
- JIS H4552: Japanese Industrial Standard for nickel-chromium-molybdenum alloy bars
Dimensional Standards - ASTM B880: Standard Specification for General Requirements for Nickel and Nickel Alloy Bars and Rods
- ISO 10288: International standard for dimensional tolerances of metal bars
Testing Standards - ASTM E8 (Tensile Testing), ASTM E23 (Impact Testing), ASTM E10 (Hardness Testing)
- ASTM A262 (Intergranular Corrosion Testing)
- NACE MR0175/ISO 15156: For sour service (oil/gas applications)

4. Equivalent Grades

UNS N06625 (Inconel 625) has standardized equivalents across major global regions, ensuring interchangeability for international projects:

Region Equivalent Grade Designation
United States UNS N06625, ASTM B446 (Inconel 625)
Europe Werkstoff No. 2.4856, DIN EN 10269
Japan JIS H4552 (NCF625)
China GB/T 15007 (N06625)
International (ISO) ISO 6363-3 (NiCr22Mo9Nb)

5. Key Features

UNS N06625 round bars stand out for their unique combination of properties, addressing critical challenges in demanding industries:

  1. Exceptional Corrosion Resistance: Resists uniform corrosion, pitting, crevice corrosion, and stress corrosion cracking (SCC) in aggressive media, including seawater, acidic solutions (e.g., sulfuric acid, hydrochloric acid), and chloride-rich environments. This is attributed to its high chromium and molybdenum content, plus niobium stabilization.
  2. High-Temperature Performance: Maintains mechanical strength and oxidation resistance at temperatures up to 1093°C (2000°F), with no significant creep deformation under long-term thermal stress.
  3. Excellent Fabricability: Hot rolled bars are easy to machine, forge, or weld (with proper filler metals like ERNiCrMo-3); bright bars require minimal post-processing for precision applications.
  4. Stable Microstructure: Niobium forms intermetallic phases (e.g., γ” precipitates) that strengthen the alloy without compromising ductility, avoiding brittle phases even after prolonged exposure to high temperatures.

6. Applications

Given its robust properties, UNS N06625 round bars (6–350mm diameter) are widely used in industries requiring reliability under extreme conditions:

  • Oil & Gas: Downhole tubulars, wellhead components, and valves for sour service (high H₂S/CO₂)；subsea pipelines and connectors (resistant to seawater corrosion).
  • Aerospace & Aviation: Turbine blades, combustion chambers, and exhaust systems (withstands high temperatures and thermal cycling)；fasteners and structural parts for aircraft engines.
  • Chemical Processing: Reactors, heat exchangers, and pump shafts (resists corrosive chemicals like acids, alkalis, and organic solvents).
  • Power Generation: Boiler tubes, steam turbine components, and nuclear reactor internals (tolerates high pressure and thermal stress).
  • Marine Engineering: Propeller shafts, ship hull components, and offshore platform structures (immune to seawater pitting and biofouling).
  • Medical Equipment: Surgical instruments and implantable devices (biocompatible and corrosion-resistant in bodily fluids).
In summary, UNS N06625 (Inconel 625) round bars (6–350mm, hot rolled/bright) offer a balance of strength, corrosion resistance, and versatility, making them a preferred choice for critical applications across high-stakes industries.

UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright BarsUNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright BarsUNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright BarsUNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars

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Product Detail
Brand Name :
DELTA
Model Number :
UNS N06625 / 625
Certification :
ISO
Place of Origin :
China
MOQ :
500 kgs
Price :
30 - 35 USD/Kg
Contact Supplier
video
UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars
UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars
UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars
UNS N06625 Nickel Alloy Round Bar Diameter 6 - 350mm Hot Rolled Bars / Bright Bars

JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

Verified Supplier
3 Years
jiangsu, wuxi
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter
Main Products :
Stainless Steel Strip, Stainless Steel Sheet, Stainless Steel Plate
Total Annual :
>1000000
Employee Number :
>100
Certification Level :
Verified Supplier
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