Incoloy 925 Coil
Incoloy 925 sheet material is a precipitation-hardening type nickel-iron-chromium corrosion-resistant alloy sheet. Based on the excellent corrosion resistance of Incoloy 825, it achieves significantly higher strength and hardness through aging heat treatment, and is specifically designed for high-stress and highly corrosive environments.
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Product Introduction

Incoloy 925 Coil is supplied as a continuous thin strip of precipitation-hardenable nickel-iron-chromium alloy, specifically engineered for the high-volume production of components that require both high strength and excellent corrosion resistance in severe sour oil and gas (O&G) environments containing hydrogen sulfide (H₂S), carbon dioxide (CO₂), and chlorides. This form enables the mass manufacturing of parts like downhole tool components, high-strength fasteners, valve internals, and spring clips, which are fabricated in the soft state and then age-hardened to achieve exceptional final properties.

Product parameters


Item / ParameterSpecification for Incoloy 925 Coil (UNS N09925)Notes / Significance
Material FamilyNickel-Iron-Chromium-Molybdenum-Copper Precipitation-Hardenable Superalloy Coil/StripThe coiled form of the high-strength, sour-service resistant alloy.
Mandatory Supply ConditionSolution Annealed (Soft Condition). All forming, stamping, and machining must be completed in this condition. Final high strength is achieved by a subsequent aging heat treatment after fabrication.Cannot be supplied or formed in a pre-aged/hard temper. This process is identical to that of Inconel 718 coil.
Chemical Composition (Typical wt.%)Ni: 42.0 - 46.0
Cr: 19.5 - 22.5
Fe: ≥ 22.0 (Balance)
Mo: 2.5 - 3.5
Cu: 1.5 - 3.0
Ti: 1.9 - 2.4
Al: 0.1 - 0.5
Composition builds on alloy 825, with critical additions of Titanium (Ti) and Aluminum (Al) to form the γ' (Ni₃(Al,Ti)) strengthening precipitates during aging.
Mechanical Properties (Typical)As-Supplied (Solution Annealed):
• Tensile: 690 - 860 MPa
• Yield: 345 - 550 MPa
• Elongation: 25 - 40%
After Aging (Aged Properties):
• Tensile: 965 - 1170 MPa
• Yield: 690 - 860 MPa
• Elongation: 15 - 25%
The dramatic increase in strength after aging is the core value. Parts are formable when soft, then become strong enough for demanding O&G applications.
Coil Physical Specifications (Typical)Thickness: 0.20mm - 2.0mm (0.008" - 0.080")
Width: 10mm - 300mm (0.4" - 12")
Coil I.D.: 300mm, 405mm, 508mm (12", 16", 20")
Coil Weight: 50kg - 800kg
Typically supplied in narrower widths/thicker gauges suited for fastener blanks, spring stock, and tool components.
Key Performance Attributes• High Strength & Excellent Sulfide Stress Cracking (SSC) Resistance per NACE MR0175/ISO 15156.
• Excellent chloride stress corrosion cracking (Cl-SCC) and pitting resistance.• Good general corrosion resistance similar to alloy 825 in sour (H₂S/CO₂/Cl⁻) and slightly oxidizing environments.
Engineered specifically for high-stress components in sour oil & gas production where standard corrosion-resistant alloys lack sufficient strength.
Key Standards (Strip/Coil)ASTM B805 (Standard Specification for Precipitation Hardening Nickel Alloy Strip for Solution Heat Treated applications), NACE MR0175/ISO 15156.ASTM B805 is the primary spec for solution-annealed strip/coil. Compliance with NACE MR0175 is essential for sour service.
Heat Treatment (Aging Cycle)Standard aging: 720°C for 8 hours, furnace cool at 55°C/hr to 620°C, hold 8 hours, air cool. This is performed by the parts manufacturer after all fabrication is complete.This two-step aging treatment is essential to develop the full γ' precipitate strengthening and achieve NACE compliance.
Typical Coil Applications• Oil & Gas: Blanks for sour service fasteners (studs, bolts), downhole tool slip components, valve seat rings, packer springs.
• Fasteners: High-strength corrosion-resistant bolts, nuts, washers for critical joints.
• Industrial: High-strength springs for corrosive service, machined shims, wear plates.
The premier material for high-volume production of high-strength, corrosion-resistant components for the sour gas and oil industry.

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Packaging and transportation

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FACTORY SHOW

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FAQ

Q:What about your price? 
A:Our price is very competitive because we are a factory. Feel free to contact us if you are interested in our products. 

Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.

Q:What product information do I need to provide?
A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase. 

Q:Does the product have quality inspection before loading? 
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we
accept the third party inspection absolutely. 

Q:How about the delivery time? 
A:Within 3-15 days after we confirm you requirement. 

Q:What is your terms of payment ?
A:T/T, L/C at sight, Cash, Western Union are all accepted if you have other payment,please contact me. 

Q: Do you provide samples? 
A:Yes,we could offer the sample for you to test but please pay freight fee.

Q:How do we trust your company? 
A:We are a specialized company focusing on global steel trading and supply chain services. Our mission is to provide high-quality, multi-specification, and one-stop steel products and solutions to customers worldwide.

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