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General Information
Chemical Composition
Physical Properties
Mechanical Properties
General Information
Inconel® 625 is a nickel-based superalloy with excellent resistance to oxidation and
corrosion, in conditions ranging from jet engine propulsion systems to chemical processing of oxidizing and reducing
acids. The nickel-chromium matrix of Inconel® 625 is reinforced by the addition of molybdenum and niobium, which
is alloyed through solid solution strengthening, and this allows it to maintain high strength and toughness at
temperatures ranging from cryogenic up to 2000°F (1093°C). It is non-magnetic, austenitic, and displays high tensile
strength, fabricability, and brazeability. Due to its high nickel content, this alloy is nearly immune to chloride ion
stress-corrosion cracking and pitting, which is commonly found in metals in seawater applications like heat exchangers, fasteners, and cable sheathing.
Standard Inventory Specifications
- 625 Sheet, Coil and Plate:
- UNS N06625
- UNS N06626-625LCF
- AMS 5599
- ASTM B 443 Gr 1
- ASME SB 443 Gr 1
- 625 Bar:
- UNS N06625
- UNS N06626-625LCF
- AMS 5666
- ASTM B 446
Other industry standards we comply with:
- EMS95377
- EN 2.4856
- EN 10204
- DFARS Compliant
- RR SABRe Edition 2
- S1000 / S-SPEC-1
- GE Aviation S-SPEC-35 AeDMS S-400
- PWA LCS
Common Trade Names
- Alloy 625
- Nickel 625
- Inconel 625 (® Special Metals)
- Haynes 625 (® Haynes International)
Common Applications of 625
- Aerospace components
- Propeller blades
- Submarine propulsion motors
- Utility boat exhaust ducts
- Steam-line bellows
Chemical Composition
Chemical Composition of Inconel 625
Element
Percent by Weight
C
Carbon
0.010 maximum
Mn
Manganese
0.50 maximum
P
Phosphorous
0.015 maximum
S
Sulfur
0.015 maximum
Si
Silicon
0.50 maximum
Cr
Chromium
20.00 – 23.00
Ni
Nickel
Balance
Mo
Molybdenum
8.00 – 10.00
Nb
Columbium
3.15 – 4.15
Ti
Titanium
0.40 maximum
Al
Aluminum
0.40 maximum
Ta
Tantalum
0.05 maximum
Fe
Iron
5.00 maximum
Physical Properties
Physical Properties
- Density: 0.303 lb/in3 (8.44 g/cm3
- Specific Gravity: 8.44
- Melting Range: 2350 – 2460°F (1280 – 1350°C)
- Specific Heat: 0.098 Btu/lb x °F (410 Joules/kg x °K)
- Magnetic Permeability (75°F, 200 oersted): 1.0006
Thermal Conductivity
| Temperature Range | Linear Coefficients of Thermal Expansion1 · 10-6 | Thermal Conductivity2 3 | |||
| °C | °F | /°C | /°F | W/m·K | Btu/(hr/ ft²/in/°F) |
| -157 | -250 | – | – | 7.3 | 4.2 |
| -129 | -200 | – | – | 7.4 | 4.3 |
| -73 | -100 | – | – | 8.3 | 4.8 |
| -18 | 0 | – | – | 9.2 | 5.3 |
| 21 | 70 | – | – | 9.9 | 5.7 |
| 38 | 100 | – | – | 10.0 | 5.8 |
| 93 | 200 | 12.8 | 7.1 | 10.7 | 6.3 |
| 204 | 400 | 13.1 | 7.3 | 12.6 | 7.3 |
| 316 | 600 | 13.3 | 7.4 | 14.2 | 8.2 |
| 427 | 800 | 13.7 | 7.6 | 15.7 | 9.1 |
| 538 | 1000 | 14.0 | 7.8 | 17.5 | 10.1 |
| 649 | 1200 | 14.8 | 8.2 | 19.0 | 11.0 |
| 760 | 1400 | 15.3 | 8.5 | 20.8 | 12.0 |
| 871 | 1600 | 15.8 | 8.8 | 22.8 | 13.2 |
| 927 | 1700 | 16.2 | 9.0 | – | – |
| 982 | 1800 | – | – | 25.3 | 14.6 |
Electrical Resistivity
| Temperature | microhm-cm | ||
| °C | °F | ||
| 21 | 70 | 128.9 | |
| 38 | 100 | 129.6 | |
| 93 | 200 | 131.9 | |
| 204 | 400 | 133.9 | |
| 316 | 600 | 134.9 | |
| 427 | 800 | 135.9 | |
| 538 | 1000 | 137.9 | |
| 649 | 1200 | 137.9 | |
| 760 | 1400 | 136.9 | |
| 871 | 1600 | 135.9 | |
| 982 | 1800 | 134.9 | |
| 1093 | 2000 | 133.9 | |
Mechanical Properties
Mechanical Properties
- Mechanical Properties and Yield Strength
- Mechanical Properties and Yield Strength of Alloy 625
| Temperature | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation Percent | ||||
| °F | °C | psi | MPa | psi | MPa | ||
| 1920 | 1065 | 63, 000 | 430 | 136, 000 | 940 | 51.5 | |
625 Seamless Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: OD: Φ4-Φ1219mm; WT:…
Introduction: Wisine its production capacity of stainless steel seamless pipe, roughly 2100 tons per month. As per your requirement…
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625 Sanitary Tube
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: OD: Φ8-Φ850mm; WT:…
Introduction: Wisine produces sanitary tubes that are widely applicable to food & beverage industry, pharmaceutical industry…
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625 Thick-walled Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: OD: Φ10-Φ1219mm; WT:…
Introduction: Thick-walled stainless steel pipe, also named stainless steel hollow bar, are usually used for mechanical applications or…
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625 Welded Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: OD: Φ6-Φ2800mm; WT:…
Introduction: Wisine produces welded stainless steel pipe in different shapes: round, square and rectangle. In comparison with seamless pipe…
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625 Square Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Side Length: 4×4-300×300mm…
Introduction: As per your requirement, stainless steel square pipe can be made into welded stainless steel square pipe or…
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625 Rectangle Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Side Length: 4×6-200×400…
Introduction: Stainless steel rectangle pipe is hollow stainless steel long product and can be classified into seamless and welded…
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625 Capillary Tube
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: OD: Φ0.4-Φ16.0mm; WT:…
Introduction: Wisine produces stainless steel capillary with different finishes for your option. Quite common in our international markets…
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625 Coil Tube
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: OD: Φ0.4-Φ16mm; WT:…
Introduction: Stainless steel coil tubes refer to those tubes with diameter ranging from 0.5mm to 20mm and wall thickness from…
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625 Elbow
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Outer Diameter: DN15 – DN600…
Wall Thickness: Sch5S- Sch160…
Classification: 45° elbow, 90° elbow, 180° elbow, long radius elbow, short radius elbow…
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625 Flange
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Outer Diameter: DN6 – DN750…
Wall Thickness: Sch5S-Sch160S…
Classification: SW (Socket Welding) flange, WN (Welding Neck) flange, SO (Slip-On) flange…
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625 Tee
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Outer Diameter: DN15 – DN750…
Wall Thickness: Sch5S-Sch160…
Classification: Straight tee, reducing tee…
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625 Cross
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Outer Diameter: DN15 – DN1200…
Wall Thickness: Sch5S-Sch160…
Classification: Straight cross, reducing cross…
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625 Reducer
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Outer Diameter: DN15 – DN500…
Wall Thickness: Sch5S-Sch160…
Classification: Concentric reducer, eccentric reducer…
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625 Pipe Cap
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Outer Diameter: DN15 – DN1200…
Wall Thickness: Sch5S- Sch160…
Classification: Hemispherical cap, elliptical/oval cap, dish cap, spherical cap…
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625 Round Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Diameter: 2mm – 600mm…
Introduction: Stainless steel round bars are categorized as both long products and bar materials. SS round bar is long stainless steel product…
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625 Flat Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Thickness: 0.5mm – 200mm…
Introduction: Stainless steel flat bars are of rectangle shape with root face (or round edges) and they can be semi-finished or finished…
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625 Angle Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Equal Angle Bar Dimensions…
Introduction: Stainless steel angle bars are L-shape bars with two side widths perpendicular to each other. The two widths can be equal…
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625 Square Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Dimensions: 2mmx2mm – …
Introduction: Stainless steel square bars are long stainless steel products with its cross section as square. At Wisine, we produce SS square…
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625 Hexagon Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Dimension: 3mm – 180mm…
Introduction: Stainless steel hex bar is solid stainless steel long product with its cross section as hexagonal. Wisine produce stainless…
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625 Channel Bar
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Hot Rolled: 40mmx80mmx…
Introduction: Stainless steel channel bar is stainless steel long product with its section as U shape. At Wisine, apart from stainless steel…
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625 Sheet
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Thickness: ≤ 5mm…
Introduction: In Wisine, we refer to thickness below 5mm as stainless steel sheets and thickness above 5mm as SS plates…
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625 Plate
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Thickness: ≥ 5mm…
Introduction: In Wisine, we regard thickness above (includes) 5mm as stainless steel plates. Our stainless steel plates are hot rolled…
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625 Coil
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Width: ≥ 610mm…
Introduction: Our stainless steel coils are primary quality coils from the origin of Baosteel, ZPSS, TISCO, JISCO, ATI, SMC, HAYNES…
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625 Strip
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Width: ≤ 610mm…
Introduction: Stainless steel strip has its width less than 610mm, with its thickness ranging from 0.02mm to 6mm. For width over 610mm…
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625 Wire
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Diameter: 0.02mm-25mm…
Introduction: Wisine produces high quality wire and stainless steel wire rope. Our annual production capacity is roughly 8000 tons…
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625 Wire Rod
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Diameter: Hot rolled wire rod:…
Weight: ≤500Kg per roll
Tolerance: H9, H11
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625 Wire Rope
Standard: ASTM, JIS, DIN, EU…
Grade: 625…
Size: Φ0.15mm-Φ50mm…
Introduction: Wisine produces high quality wire and stainless steel wire rope. Our annual production capacity is roughly 8000 tons…