Forged Inconel Alloy 625 Round Rod for Aerospace Industry

Product Description

Inconel Alloy 625

 

· Product Description

ZEGOTA's Inconel Alloy 625 (equivalent to UNS N06625, W.Nr. 2.4856, GH3625) is a premier solid-solution strengthened nickel-based superalloy engineered for extreme operating environments. Strengthened by the addition of molybdenum and niobium (columbium) to its nickel-chromium matrix, Alloy 625 delivers superior high-temperature tensile, creep, and rupture strength up to 980°C (1800°F) without the necessity of precipitation-hardening heat treatments.
ZEGOTA provides fully certified, multi-form Inconel 625 materials including hot-rolled/cold-rolled plates and sheets, precision round bars, bright drawn wires, and custom-machined/additive-manufactured components. Backed by strict traceability, state-of-the-art metallurgical control, and Class 10k/100k inspection facilities, our solutions serve global leaders across aerospace propulsion, offshore marine engineering, chemical processing, nuclear power, and advanced additive manufacturing sectors.
· Core Technical Advantages & Features

- Superior Corrosion & Pitting Resistance: Exceptional resistance to localized pitting, crevice corrosion, and intergranular attack in severe acid (nitric, phosphoric, sulfuric, hydrochloric) and chloride-rich seawater environments. Virtually immune to chloride-ion stress-corrosion cracking (SCC).

- High Thermal & Oxidation Stability: Outstanding oxidation and scaling resistance at continuous elevated temperatures up to 1050°C, maintaining remarkable structural stability and fatigue strength from cryogenic regimes (-196°C) to 980°C.

- Excellent Fabricability & Weldability: Superior hot/cold workability with freedom from post-weld cracking or sensitization, making it an optimal choice for complex welded fabrication, cladding, and additive manufacturing.

- Comprehensive Form Options & Full Customization: Flexible supply in wide-width sheets, ultra-thick plates, ground precision rods, spring/welding grade wires, and tailor-made CNC parts meeting exact dimensional tolerances.

- Stringent Quality Assurance: 100% ultrasonic testing (UT), PMI spectrum verification, mechanical and metallurgical inspection, backed by EN 10204 3.1 / 3.2 Mill Test Certificates.

· Target Applications

 

- Aerospace & Aviation: Gas turbine engine components, aircraft ducting systems, jet engine exhaust systems, thrust-reverser assemblies, turbine shroud rings, and high-temperature combustion hardware.

- Marine & Offshore Engineering: Subsea wellhead components, mooring wire ropes, propeller shafts, submarine auxiliary propulsion motors, undersea cable sheathing, and seawater heat exchangers.

 - Chemical & Petrochemical Processing: Equipment exposed to mixed acid media, reaction vessels, flare stack piping, sour gas (H2S/CO2) production tubing, distillation columns, and desulfurization systems.

 - Nuclear & Energy: Core reactor components, control rod drive mechanisms, waste disposal evaporators, and thermal power plant superheater steam piping.

- Precision Springs & Fasteners: High-durability springs, seals, flanges, and high-stress fasteners functioning in ultra-corrosive or high-temperature media.

 

· Chemical Composition Table (ASTM / AMS Standards wt%)

(Element)	(Symbol)	Min (%)	Max (%)
(Nickel)	Ni	58.0	(Balance)
(Chromium)	Cr	20.0	23.0
(Molybdenum)	Mo	8.0	10.0
(Niobium + Tantalum)	Nb + Ta	3.15	4.15
(Iron)	Fe	-	5.0
(Cobalt)	Co	-	1.0
(Carbon)	C	-	0.10
(Manganese)	Mn	-	0.50
(Silicon)	Si	-	0.50
(Phosphorus)	P	-	0.015
(Sulfur)	S	-	0.015
(Aluminum)	Al	-	0.40
(Titanium)	Ti	-	0.40

· Mechanical & Physical Properties Table

Property Parameter	Test Condition	Metric Value	Imperial Value
Density	Room Temp (20°C)	8.44 g/cm³	0.305 lb/in³
Melting Range	Solidus - Liquidus	1290°C - 1350°C	2350°F - 2460°F
Tensile Strength (Rm)	Annealed Grade 1	≥ 827 MPa (Typical: 850-1000)	≥ 120 ksi
Yield Strength (Rp0.2)	Annealed Grade 1	≥ 414 MPa (Typical: 450-620)	≥ 60 ksi
Elongation at Break (A5)	Gauge Length 50mm / 4D	≥ 30% (Typical: 40-50%)	≥ 30%
Hardness	Annealed Condition	≤ 220 HBW / ≤ 95 HRB	≤ 220 HBW / ≤ 95 HRB
Elastic Modulus	Room Temp (20°C)	208 GPa	30.1 × 10³ ksi
Thermal Conductivity	20°C - 100°C	9.8 W/(m·K)	68 Btu·in/(ft²·h·°F)
Operating Temperature	Continuous Service	-196°C to +980°C	-321°F to +1800°F

· Product Forms & Processing Range Table

Product Form	Dimensional Range	Delivery State & Surface Finish	International Standards
Sheet & Plate / Strip	• Thickness: 0.3mm - 60mm • Width: 500mm - 2000mm • Length: 1000mm - 6000mm or Coils	• Cold Rolled (2B, Bright Annealed) • Hot Rolled (No.1 Pickled, Shot-Blasted)	ASTM B443, ASME SB443, AMS 5599, ISO 6208, DIN 17750
Round Bar & Rod	• Diameter: Φ3.0mm - Φ350mm • Length: 1000mm - 6000mm / Custom Blanks • Forged Stepped Shafts & Discs Available	• Cold Drawn & Polished • Centerless Ground (Tolerance h7-h9) • Forged & Rough Turned / Peeled	ASTM B446, ASME SB446, AMS 5666, DIN 17752, NACE MR0175
Precision Wire	• Diameter: Φ0.05mm - Φ8.0mm • Packaging: Spool (DIN125-DIN355), Coils, or Cut Straight Rods	• Bright Annealed (Soft) • Spring Hard (1/4H, 1/2H, Full Hard) • Welding Grade (Acid Cleaned, TIG/MIG)	AMS 5837, AWS A5.14 (ERNiCrMo-3), DIN 17753, ISO 18274
Custom CNC Parts	• Per Customer Drawings / 3D CAD Models • Flanges, Fasteners, Valve Seats, Bushings, Manifolds	• 4-Axis / 5-Axis CNC Precision Milling & Turning • Wire EDM, Heat Treated, 100% CMM & Ultrasonic Inspected	ISO 9001, AS9100D, Custom OEM/ODM Specifications

· Brief Introduction

Zhejiang ZEGOTA Precision Technology Co., Ltd. is a premier, technology-driven pioneer specializing in high-performance specialty alloys, precision metal materials, and advanced additive manufacturing technologies. Leveraging advanced vacuum melting metallurgy, high-precision processing capabilities, and complete laboratory testing suites, ZEGOTA delivers world-class nickel-based superalloys, precision shaped wires, and customized engineered parts that meet the rigorous standards of the global aerospace, marine, medical, and energy industries.