Kanakratna Steelage Private Limited

Inconel 625 Round Bar is a high-strength, corrosion-resistant nickel-based alloy product widely used in harsh industrial environments. Known for its excellent resistance to high-temperature oxidation and aggressive corrosive agents, Inconel 625 is a preferred material for components in aerospace, marine, chemical processing, and power generation sectors. This document provides an in-depth understanding of Inconel 625 Round Bars, detailing their properties, manufacturing processes, applications, and compliance with international standards.

• ASTM B446 – Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloy (UNS N06625) Rod and Bar

• ASME SB-446 – Boiler and Pressure Vessel Code application

• AMS 5666 – Aerospace Material Specification

Additional Information:

• Item Code: UNSNO6625
• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

Inconel 625, also known by its UNS designation N06625, is a high-performance nickel-chromium-molybdenum alloy renowned for its exceptional resistance to oxidation and corrosion across a wide temperature range. It is particularly valued in industries requiring materials that can withstand extreme environments.

The typical chemical composition of Inconel 625 is as follows:

• Nickel (Ni): 58.0–63.0%

• Chromium (Cr): 20.0–23.0%

• Molybdenum (Mo): 8.0–10.0%

• Niobium (Nb) + Tantalum (Ta): 3.15–4.15%

• Iron (Fe): ≤5.0%

• Cobalt (Co): ≤1.0%

• Silicon (Si): ≤0.50%

• Manganese (Mn): ≤0.50%

• Phosphorus (P): ≤0.015%

• Sulfur (S): ≤0.015%

• Titanium (Ti): ≤0.40%

• Aluminum (Al): ≤0.40%

Inconel 625 exhibits the following mechanical properties:

• Tensile Strength: Approximately 1,380 MPa (200,000 psi)

• Yield Strength (0.2% offset): Approximately 690 MPa (100,000 psi)

• Elongation: Approximately 35%

• Hardness: Approximately 200 HB

• Density: 8.44 g/cm³

• Melting Point: Approximately 1,300°C (2,372°F)

Inconel 625 does not require heat treatment for strengthening. However, it can undergo:

• Solution Annealing: Heated to 1,050–1,100°C (1,922–2,012°F) and rapidly cooled to relieve stresses and optimize corrosion resistance.

• Stress Relieving: Performed at 540–620°C (1,004–1,148°F) to reduce residual stresses without compromising mechanical properties.

These treatments enhance the material's performance in specific applications.

Inconel 625 conforms to several industry standards:

• ASTM B446: Standard Specification for Nickel-Chromium-Molybdenum-Columbium Alloy (UNS N06625) in the form of hot-worked rod and bar and cold-worked rod.

• AMS 5666: Aerospace Material Specification for Inconel 625.

• ASME SB446: Specification for Nickel-Chromium-Molybdenum-Columbium Alloy (UNS N06625) for use in pressure vessels and heat exchangers.

These standards ensure the alloy's suitability for critical applications.

Additional Information:

• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

Inconel 625 Round Bars are a highly versatile and high-performance nickel-chromium-molybdenum alloy, widely recognized for their exceptional corrosion resistance, outstanding mechanical properties, and high strength at elevated temperatures. Designated by UNS N06625, this alloy is extensively used in aerospace, chemical processing, marine engineering, oil & gas, nuclear, and power generation industries.

Round bars are a primary form of Inconel 625, typically supplied as long solid cylindrical bars, which serve as feedstock for machining into shafts, fasteners, valves, pump parts, fittings, and structural components. The combination of nickel, chromium, molybdenum, and niobium imparts excellent resistance to oxidation, pitting, and crevice corrosion, even in highly aggressive environments.

The chemical composition of Inconel 625 is carefully engineered for superior performance. Typical composition:

Inconel 625 round bars display excellent mechanical characteristics:

• Thermal Conductivity: 9.8 W/m·K

• Coefficient of Thermal Expansion: 13.3 µm/m·°C (20–100°C)

• Specific Heat: 0.435 J/g·K

• Electrical Resistivity: 1.1 μΩ·m

These physical properties make Inconel 625 round bars dimensionally stable under thermal cycling, critical for aerospace, marine, and nuclear applications.

• Chemical Testing: Spectroscopy for alloy verification.

• Mechanical Testing: Tensile, hardness, yield, elongation.

• Corrosion Testing: Salt spray, pitting, crevice corrosion resistance.

• NDT: Ultrasonic, eddy current, and surface inspection.

• Certifications: ASTM, ASME, AMS, and ISO 9001/14001 for material traceability.

Additional Information:

• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes