Inconel 625

Plate, Pipe, Bar & Tube | ASTM B443 / B444 / B446

Corrosion-resistant nickel-chromium-molybdenum-niobium alloy with outstanding strength, weldability, and fatigue resistance. Ideal for marine, chemical, and aerospace service.

Technical Details
Composition(%):
Nickel
≥ 58.0
Chromium
20.0 – 23.0
Molybdenum
8.0 – 10.0
Niobium
3.15 – 4.15
Iron
≤ 5.0
Carbon
≤ 0.10
Manganese
≤ 0.5
Silicon
≤ 0.5
Mechanical Properties:
Yield Strength (0.2%): ≥ 414 MPa
Tensile Strength: ≥ 827 MPa
Elongation: ≥ 30%
Hardness: ≤ 92 HRB
Creep Strength: Excellent up to 650°C
Fatigue Resistance: Exceptional
Corrosion Resistance: Outstanding in seawater, acids, and chlorides
Price & Availability

Updated: June 2025

Inconel 625 Plate / Sheet | Size: 1220 × 2440 mm | Thickness: 3 – 20 mm
REGION
ASTM
UNS
W.NR.
AVAILABILITY
PRICE(USD/KG)
Europe
B443
N06625
2.4856
1-2 weeks

46.0

China
B443
N06625
2.4856
In stock

33.5

UAE
B443
N06625
2.4856
2–3 weeks

37.8

** All prices are EXW. MOQ applies. Request DDP quotes for your region.
REGION
ASTM
UNS
W.NR.
AVAILABILITY
PRICE(USD/KG)
Europe
B444
N06625
2.4856
Made-to-order

54.0

China
B444
N06625
2.4856
2-3 weeks

42.2

UAE
B444
N06625
2.4856
Limited stock

46.8

** All prices are EXW. MOQ applies. Request DDP quotes for your region.
REGION
ASTM
UNS
W.NR.
AVAILABILITY
PRICE(USD/KG)
Europe
B446
N06625
2.4856
2-3 weeks

49.5

China
B446
N06625
2.4856
In stock

36.7

UAE
B446
N06625
2.4856
1-2 weeks

40.5

** All prices are EXW. MOQ applies. Request DDP quotes for your region.
Minimum Order Guideline

Product Form Minimum Order

SHEET / PLATE ≥ 300 KG
SEAMLESS PIPE ≥ 200 KG
BAR/ROD ≥ 150 KG
MIXED ORDERS ≥ USD 8,000

** Sample-based trials available for approved engineering teams.

Beyond Certified: Introducing The Alloy360 VANTAGE™ Program

Includes Free Pre-Shipment Third-Party Inspection (PMI, Dimensional, Visual, Photos) by SGS / TÜV

We don’t just sell certified material. We re-certify it ourselves and then have an independent expert verify it. This is our definition of uncompromising integrity.

More about Alloy360 VANTAGE™
Quick Specs
Density: 8.44 g/cm³
Tensile Strength: >827 MPa
Max Temp: ~980°C
  • Certified Inconel 625 available in sheet, plate, seamless pipe, tube, bar & forgings.

Forms: Sheet / Plate / Seamless Pipe / Tube / Round Bar / Wire / Fittings

Standards: ASTM B443, B444, B446

UNS: N06625

W.Nr.: 2.4856

Property

value

Grade
Inconel 625
UNS Number
N06625
Werkstoffnummer
2.4856
Common Forms
Plate, Seamless Pipe, Tube, Bar
Industry Standards
ASTM B443, B444, B446
Typical Applications
Marine, Aerospace, Chemical, Offshore
Supply Locations
Europe, China, UAE
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FAQs

Where is Inconel 625 used?

Inconel 625 is used in marine, aerospace, offshore, and chemical processing environments where corrosion, high stress, and fatigue resistance are critical.

How is Inconel 625 different from Inconel 600?

625 contains molybdenum and niobium for significantly better corrosion, fatigue, and seawater resistance. Inconel 600 focuses more on oxidation and heat resistance.

Can Inconel 625 be welded easily?

Yes. It is highly weldable with or without filler, typically using ERNiCrMo-3 electrodes. It doesn’t require post-weld heat treatment in most applications.

Is Inconel 625 NACE compliant?

Yes. It meets NACE MR0175 / ISO 15156 requirements for sour service and is widely used in offshore oil & gas.

What is the lead time for Inconel 625 deliveries to the GCC?

From UAE: 5–8 working days
From China: 3–4 weeks
From Europe: 2–3 weeks

Testing & Certifications

Non-Destructive Testing (NDT):

PMI / XRF
Ultrasonic (UT)
Hydrostatic (for pipe)

Destructive Testing (DT):

Tensile
Flattening / Flaring
Hardness

Documentation:

• EN 10204 3.1 MTC / 3.2 on request
• Third-party inspections: SGS, TUV, BV
• NACE MR0175 / ISO 15156 available for sour service

Traceable by heat & lot number, ready for EPC and offshore compliance.

Smart Message

Inconel 625 – Tough Against Everything
From saltwater to strong acids, Inconel 625 thrives where other alloys degrade. Superior corrosion resistance, fatigue strength, and thermal stability make it the go-to alloy for offshore rigs, chemical plants, and jet engines.
Engineered for performance.

ASTM Standards – Inconel 625 (UNS N06625)

Inconel 625 is a solid-solution strengthened nickel alloy known for exceptional corrosion and fatigue resistance.

ASTM B443 – Plate, Sheet

• For lining, chemical tanks, offshore structures
• Annealed condition, pickled or polished

ASTM B444 – Seamless Pipe / Tube

• For high-pressure chemical or seawater lines
• Requires NDT & hydrotest certification

ASTM B446 – Rod, Bar, Forgings

• Machined parts, fasteners, shafts
• Hot-worked or cold-drawn finishes

Comparison: Inconel 625 vs Other Alloys

Property

316L SS

Inconel 600

Inconel 625

Hastelloy C276

Ni Content (%)
~10
~72
≥ 58
~57
Mo Content (%)
~2.1
-
8 – 10
15 – 17
Chloride Resistance
Moderate
High
Very High
Extreme
Fatigue Strength
Low
Moderate
Very High
High
Temp Resistance
~870°C
~1175°C
~980°C
~1040°C
Cost
Low
High
High
Very High

Comparison: Inconel 625 vs Other Alloys

Property

316L SS

Ni Content (%)
~10
Mo Content (%)
~2.1
Chloride Resistance
Moderate
Fatigue Strength
Low
Temp Resistance
~870°C
Cost
Low

Property

Inconel 600

Ni Content (%)
~72
Mo Content (%)
-
Chloride Resistance
High
Fatigue Strength
Moderate
Temp Resistance
~1175°C
Cost
High

Property

Inconel 625

Ni Content (%)
≥ 58
Mo Content (%)
8 – 10
Chloride Resistance
Very High
Fatigue Strength
Very High
Temp Resistance
~980°C
Cost
High

Property

Hastelloy C276

Ni Content (%)
~57
Mo Content (%)
15 – 17
Chloride Resistance
Extreme
Fatigue Strength
High
Temp Resistance
~1040°C
Cost
Very High

Related Grades

Explore similar corrosion-resistant nickel alloys:

Inconel 600 – Heat-focused, with moderate corrosion resistance

Inconel 718 – Precipitation-hardened for aerospace & cryogenics

Hastelloy C276 – Top-tier chemical and chloride resistance

Monel 400 – For seawater & hydrofluoric acid service

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