Inconel 625 Strips: High-Temperature Strength · Corrosion and Stress-Cracking Resistance

Inconel 625 Strips: High-Temperature Strength · Corrosion and Stress-Cracking Resistance

Product Overview

Inconel 625 Strips (UNS N06625) are precision-rolled, nickel-chromium-molybdenum-niobium strips engineered for demanding high-temperature and corrosive environments. These strips combine outstanding resistance to pitting, crevice and stress-corrosion cracking with excellent mechanical strength across a broad temperature range, from cryogenic service up to 1093 °C (2000 °F). Unlike precipitation-hardened alloys, Inconel 625 derives its strength through solid-solution strengthening of molybdenum and niobium, delivering a tensile strength of up to 930 MPa and yield strength of 517 MPa in the annealed condition while maintaining elongation of 42.5 %. The alloy’s non-magnetic nature and fabricability—suitable for stamping, forming, and fine blanking—make it ideal for honeycomb cores, diaphragms, bellows, springs, and seals in aerospace and power-generation applications. In marine and chemical processing, these strips resist chloride-bearing environments and acidic media, ensuring long service life in heat exchangers, tube support plates, and corrosion-resistant linings.

Chemical Composition

Mechanical Properties

Physical Properties

Conformance Standards

• ASTM B443 / ASME SB-443 – Nickel-chromium-molybdenum-niobium strip, sheet & plate

• AMS 5599 – Strip and foil form

• UNS N06625 – Unified designation

• ISO 15156-3 / NACE MR0175-3 – Sour service environments

Applications

Inconel 625 Strips excel in a wide range of sectors:

• Aerospace: Honeycomb cores, seals, springs, diaphragms, bellows

• Power Generation: Turbine blade shims, heat-exchanger fins, combustion liners

• Chemical Processing: Reactor linings, bubbling caps, transfer piping, tube support plates

• Marine: Sheathing for undersea communication cables, steam-liner bellows, seawater components

• Nuclear: Reactor-core springs, control-rod clips

Frequently Asked Questions

Q1: Why choose Inconel 625 Strips over other nickel alloys?
A1: Their solid-solution strengthening avoids the need for precipitation hardening, yielding stable mechanical properties from cryogenic to 1093 °C, coupled with superior resistance to pitting and chloride stress-corrosion cracking.

Q2: Are Inconel 625 Strips weldable without properties degradation?
A2: Yes. Standard TIG/GTAW or electron-beam welding, followed by solution annealing if required, preserves the alloy’s toughness and corrosion resistance.

Q3: What dimensional tolerances are available for strips?
A3: Thicknesses from 0.05 mm to 5 mm and widths up to 300 mm are standard, with custom tolerances achievable upon request.

Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-resistant alloys, heat-resistant steels, nickel-based welding wires, and other specialty materials, with an annual production capacity of 5,000 tonnes. Our product range includes plates, bars, wires, and strips, which are widely used in industrial electric furnaces, power‐station boilers, petrochemical plants, aerospace, marine engineering, machinery, and electronic instrumentation. These materials are characterized by high electrical resistance, high‐temperature strength, corrosion resistance, wear resistance, and fatigue resistance. We can manufacture in compliance with national, industry, and international standards, and are also able to tailor products to meet specific customer requirements.
The company is committed to improving and enhancing its production infrastructure all year round, with a full range of production and processing equipment including vacuum smelting, hot processing, cold processing, and heat treatment. It also has various physical and chemical analysis testing facilities such as spectrometers to ensure product quality. The company has a high-quality R&D, production, and management team that is fully capable of meeting the complex requirements of the current market for material diversification, refinement, and functionalization. Our company is particularly skilled in developing and producing "specialized materials" that are suitable for the market and specific customer needs, which will be one of our company's characteristics. The company adheres to the business philosophy of "guided by market demand, driven by technological progress, and committed to optimizing and innovating materials to create greater value for customers", serving society and the market.