Nickel alloy 625|Alloy 625|UNS N06625 Plate Material Supplier


Gangsteel sell Nickel alloy 625 steel plate, Alloy 625 pipe,Alloy 625 Tubing, Alloy 625 Round bar, Cutting parts, Machined parts,UNS N06625 Plate and UNS N06625, inconel 625 Material

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What is Alloy 625?
Alloy 625 (UNS N06625) is a nickel-based superalloy engineered for superior resistance to pitting, crevice corrosion, and oxidation, even in harsh environments. Its excellent fatigue strength and weldability make it a preferred choice for critical applications requiring durability and reliability.

Nickel alloy 625 Chemical Composition

The chemical composition of Alloy 625 is meticulously controlled to ensure optimal performance. The following table details the typical composition (in weight percent):

Element

Percentage

Nickel (Ni)

58.0 min

Chromium (Cr)

20.0-23.0

Molybdenum (Mo)

8.0-10.0

Niobium (Nb)

3.15-4.15

Iron (Fe)

5.0 max

Titanium (Ti)

0.40 max

Aluminum (Al)

0.40 max

Carbon (C)

0.10 max

Manganese (Mn)

0.50 max

Silicon (Si)

0.50 max

Phosphorus (P)

0.015 max

Sulfur (S)

0.015 max

Alloy 625 Mechanical Properties

Alloy 625 from Gangsteel offers outstanding mechanical properties, suitable for demanding applications. The following table summarizes key mechanical properties at room temperature:

Property

Value

Tensile Strength

120-150 ksi (827-1034 MPa)

Yield Strength (0.2% offset)

60-90 ksi (414-621 MPa)

Elongation

30-40%

Hardness

20-25 HRC

Density

0.305 lb/in³ (8440 kg/m³)

  • Alloy 625 high temperature properties
  • Temperature Range: Maintains properties from cryogenic temperatures up to 1800°F (982°C).
  • Fatigue Resistance: Excellent under cyclic loading conditions.

Equivalent Grades of alloy 625 equivalent

Gangsteel’s Alloy 625 is compatible with various international standards. The following table lists equivalent grades:

Standard

Grade

UNS

N06625

DIN

2.4856

EN

NiCr22Mo9Nb

ASTM

B446, B564

ASME

SB-446, SB-564

Applications and Benefits

  • Corrosion Resistance: Highly resistant to seawater, acidic, and alkaline environments.
  • Weldability: Easily welded using standard techniques with matching fillers.
  • Versatility: Used in heat exchangers, offshore platforms, and aircraft exhaust systems.

alloy 625 material specification in gangsteel

Chinese manufacturers, including Gangsteel, can produce a wide range of Inconel 625 products with the following specifications:

  1. Bars and Rods:
    • Diameter: 6 mm to 220 mm
    • Length: Up to 6000 mm
    • Supply State: Hot rolled, annealed, or cold drawn
  2. Plates and Sheets:
    • Thickness: 0.5 mm to 100 mm
    • Width: Up to 1500 mm
    • Length: Up to 6000 mm
    • Supply State: Solution annealed and pickled
  3. Seamless and Welded Tubes/Pipes:
    • Outer Diameter: 6 mm to 530 mm
    • Wall Thickness: 0.5 mm to 50 mm
    • Length: Up to 12000 mm
    • Supply State: Solution annealed and pickled or bright annealed
  4. Forgings:
    • Custom shapes including flanges, rings, and discs
    • Weight: Up to 10 tons per piece
    • Supply State: Forged and heat treated
  5. Wires and Strips:
    • Diameter/Thickness: 0.1 mm to 10 mm
    • Width (Strips): Up to 300 mm
    • Supply State: Cold rolled or annealed
  6. Fittings and Flanges:
    • Custom sizes based on client drawings
    • Supply State: Forged and machined

Customer refer question of Alloy 625

  1. What is different with Alloy 625 and  inconel 625?
    They are chemically identical; "Inconel 625" is simply the trade name under Special Metals.

Item

Alloy 625

Inconel 625

Definition

Generic name for the material

Trademark name owned by Special Metals Corp

Chemical Composition

Same

Same

Applications

Same

Same

Summary

Alloy 625 = Inconel 625

"Inconel" is the branded version

 

  1. What is Alloy 625 Density?

Property

Value

Density

8.44 g/cm³

 

0.305 lb/in³

 

  1. What is Alloy 625 vs alloy 825
    Alloy 625 has higher strength and broader high-temperature performance, while Alloy 825 is more cost-effective and corrosion-resistant in acid-based environments.

Property

Alloy 625

Alloy 825

UNS Number

N06625

N08825

Ni Content

~58%

~38–46%

Cr Content

~21–23%

~19.5–23.5%

Mo Content

~8–10%

~2.5–3.5%

Additional Elements

Nb (Niobium), Ti

Cu (1.5–3%), Ti, Al

Strength

Higher (due to Nb + Mo strengthening)

Moderate

Corrosion Resistance

Excellent in oxidizing + reducing media

Excellent in sulfuric + phosphoric acids

Temp Range

Up to 1000°C (1832°F)

Up to ~540°C (1000°F)

Applications

Aerospace, marine, nuclear

Chemical processing, pickling tanks

Cost

Higher

Lower

 

  1. What is Alloy 625 vs Inconel 625
    Alloy 625 = Inconel 625, Same material, different naming (brand vs generic)

 

 

  1. What is Alloy 600 vs 625
    Alloy 625 is stronger, more corrosion-resistant, and more versatile than Alloy 600.

Property

Alloy 600 (Inconel 600)

Alloy 625 (Inconel 625)

UNS Number

N06600

N06625

Ni Content

~72%

~58%

Mo Content

None

8–10%

Strength

Lower

Higher (due to Mo + Nb)

Oxidation Resistance

Excellent

Excellent

Creep Resistance

Moderate

Excellent

Temp Range

Up to 1100°C

Up to 1000°C

Application Focus

Heat treat, furnace parts

Marine, aerospace, nuclear

 

  1. What is Alloy 625 vs ss316 (Stainless steel)
    Alloy 625 outperforms SS316 in mechanical strength, high-temperature stability, and severe corrosion resistance, but is significantly more expensive.

Property

Alloy 625

SS316 / 316L

Type

Nickel-based superalloy

Austenitic stainless steel

Ni Content

~58%

~10–14%

Mo Content

8–10%

2–3%

Strength

Much higher

Moderate

Temp Resistance

Up to 1000°C (1832°F)

Up to 870°C (1600°F)

Corrosion Resistance

Excellent in harsh acids and seawater

Good in general corrosion

Cost

 High

 Medium to low

Application Examples

Jet engines, nuclear, subsea

Food processing, pharma, heat exchangers

 

  1. What is inconel 625 allowable stress
    ASME BPVC Section II, Part D

Temperature (°C)

Allowable Stress (MPa)

100 °C

207

200 °C

186

300 °C

167

400 °C

150

500 °C

134

600 °C

120

700 °C

107


For more information or to request a quote, contact Gangsteel today.

 

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