Inconel 625 Supplier | Bar, Tube & Plate | Shanghai Hangbo Alloy Group
Date: 2026年6月27日 Categories: News Views: 12
Excerpt:
Shanghai Hangbo Alloy Group supplies Inconel 625 (UNS N06625) round bars, seamless tubes and plates. ISO 9001:2015 certified. Request a quote in 10 min: specialalloy001@gmail.com
Shanghai Hangbo Alloy Group Co., Ltd. is an ISO 9001:2015 certified manufacturer and global supplier of Inconel 625 (UNS N06625), offering round bars, seamless tubes, and plates for aerospace, marine, oil & gas, and chemical processing industries.
Quick Answer: What Is Inconel 625?
Inconel 625 is a nickel-chromium-molybdenum alloy (UNS N06625 / W.Nr. 2.4856) with exceptional fatigue strength, oxidation resistance, and corrosion resistance from cryogenic temperatures up to 980°C (1800°F). The molybdenum and niobium additions provide solid-solution strengthening—eliminating the need for precipitation hardening while maintaining tensile strength exceeding 827 MPa in the annealed condition.
Key standards: ASTM B443 (plate/sheet), ASTM B444 (tube), ASTM B446 (bar), AMS 5666, AMS 5599
Why Engineers Specify Inconel 625
| Advantage | Detail |
|---|---|
| Corrosion Resistance | Outstanding resistance to seawater, chloride-induced pitting, and crevice corrosion |
| High-Temperature Strength | Retains mechanical properties up to 980°C (1800°F) |
| Fatigue Resistance | Superior resistance to thermal and mechanical cyclic loading |
| Weldability | No post-weld heat treatment (PWHT) required |
| Cryogenic Toughness | Excellent impact strength at −196°C (LNG applications) |
Shanghai Hangbo Alloy Group: Product Forms & Manufacturing Process
Inconel 625 Round Bars
Manufacturing route: Electric Arc Furnace (EAF) → Vacuum Induction Melting (VIM) → Electroslag Remelting (ESR) → hot forging → solution annealing → peeling / grinding.
- Diameter range: 6 mm – 500 mm
- Surface finish: Black forged, peeled, ground, or polished (Ra ≤ 0.8 µm)
- Standards: ASTM B446, AMS 5666
- Quality control: 100% ultrasonic testing (UT) per ASTM E2375; mechanical property test report per EN 10204 3.1
Inconel 625 Seamless Tubes & Pipes
Manufacturing route: VIM/ESR billet → hot extrusion → cold rolling (pilger mill) → cold drawing → bright annealing → straightening → NDT.
- OD range: 6 mm – 219 mm | Wall thickness: 0.5 mm – 20 mm
- Standards: ASTM B444, ASTM B829, AMS 5581
- Testing: 100% hydrostatic test + eddy current test (ECT) + ultrasonic test
Inconel 625 Plates, Sheets & Strips
Manufacturing route: VIM/ESR ingot → hot rolling → cold rolling → solution annealing → pickling → levelling.
- Thickness range: 0.5 mm – 100 mm | Width: up to 2,000 mm
- Standards: ASTM B443, AMS 5599
- Quality control: UT per ASTM A578, grain size inspection (ASTM E112)
Chemical Composition (ASTM B443 / AMS 5599)
| Element | Ni | Cr | Mo | Nb+Ta | Fe | C | Mn | Si |
|---|---|---|---|---|---|---|---|---|
| Content (%) | ≥ 58.0 | 20.0 – 23.0 | 8.0 – 10.0 | 3.15 – 4.15 | ≤ 5.0 | ≤ 0.10 | ≤ 0.50 | ≤ 0.50 |
Mechanical & Physical Properties (Annealed Condition)
| Property | Value |
|---|---|
| Density | 8.44 g/cm³ |
| Melting Range | 1290 – 1350°C (2354 – 2462°F) |
| Tensile Strength | ≥ 827 MPa (120 ksi) |
| Yield Strength (0.2%) | ≥ 414 MPa (60 ksi) |
| Elongation | ≥ 30% |
| Hardness | ≤ 240 HB |
| Thermal Conductivity | 9.8 W/m·K (at 21°C) |
| Electrical Resistivity | 1.29 µΩ·m |
Typical Applications by Industry
- Aerospace: Aircraft ducting, engine exhaust systems, thrust reverser systems
- Oil & Gas: Flexible risers, umbilicals, subsea pipelines, wellhead components
- Marine: Seawater-handling equipment, propeller blades, submarine cables
- Chemical: Reactor vessels, heat exchangers, scrubbers handling HCl and H₂SO₄
- Nuclear: Spent nuclear fuel reprocessing equipment
Quality Assurance at Shanghai Hangbo Alloy Group
Shanghai Hangbo Alloy Group implements a multi-stage quality control system covering the full production cycle:
- Incoming material verification – Spectroscopic analysis (OES/XRF) of every heat
- In-process inspection – Dimensional check, surface defect inspection after each processing step
- Final testing – Ultrasonic testing (UT), eddy current testing (ECT), hydrostatic testing, mechanical property testing
- Documentation – Full Mill Test Certificate (MTC) to EN 10204 3.1; SGS / BV third-party inspection available on request
Frequently Asked Questions (FAQ)
What is the difference between Inconel 625 and Inconel 718?
Inconel 625 is a solid-solution-strengthened alloy ideal for corrosion resistance across a wide temperature range. Inconel 718 is precipitation-hardenable, achieving much higher strength (tensile strength ≥ 1240 MPa) but requires controlled age-hardening heat treatment. 625 is preferred when weldability and corrosion resistance take priority; 718 is chosen for high-load structural components.
Can Inconel 625 be used in seawater?
Yes. Inconel 625 exhibits outstanding resistance to seawater corrosion, including pitting and crevice corrosion, making it the material of choice for marine risers, umbilicals, and subsea connectors. It meets NACE MR0175 requirements for sour service environments.
What certifications does Shanghai Hangbo Alloy Group hold?
We hold ISO 9001:2015 quality management system certification. All products are shipped with a full Mill Test Certificate (MTC) per EN 10204 3.1. SGS, BV, and TÜV third-party inspection services are available on request.
Can you supply custom sizes or OEM orders?
Yes. Shanghai Hangbo Alloy Group supports OEM/ODM production. Custom dimensions, special surface finishes, and precision machined parts are available. Contact our sales team for drawings-based quotations.
What is the minimum order quantity (MOQ)?
We accommodate both small trial orders and large industrial requirements. Please contact us directly for current stock availability and MOQ for your specific product form.
Contact Shanghai Hangbo Alloy Group
Get a quote within 10 minutes.
🌐 Website: www.nickel-alloy.com
📧 Email: specialalloy001@gmail.com
📱 WhatsApp / Phone: +86 13611656360
💬 Skype: +86 13611656360
📍 Headquarters: Shanghai, China | Agents in 32 countries worldwide
Related grades: Inconel 718 | Inconel 600 | Inconel 601 | Inconel X-750 | Inconel 617 | Inconel 690 | Inconel 725
Shanghai Hangbo Alloy Group Co., Ltd. — Founded 2012 | ISO 9001:2015 | Specializing in Nickel Alloys, Superalloys & Special Metals
