Corrosion Resistant Hot Rolled Inconel 625 Plate High Strength Nickel Base 625 Sheet
Price:
12.35
MOQ:
50
Delivery Time:
Negotiable
Product Description
Inconel 625 Alloy 625 DIN2.4856 Plate & Sheet
Manufactured in USA by SMC/ATI/HAYNES
General Properties
Alloy 625 is an austenitic nickel-chromium-molybdenum-niobium alloy offering exceptional corrosion resistance combined with high strength from cryogenic temperatures to 1800°F (982°C). The alloy's strength comes from solid-solution hardening by molybdenum and niobium, eliminating the need for precipitation-hardening treatments.
This chemical composition provides outstanding corrosion resistance in severe operating environments, with excellent resistance to oxidation, carburization, pitting, crevice corrosion, impingement corrosion, intergranular attack, and near-immunity to chloride stress corrosion cracking.
Applications
- Aerospace Components: bellows, expansion joints, ducting systems, jet engine exhaust systems, engine thrust-reversers, turbine shroud rings
- Air Pollution Control: chimney liners, dampers, flue gas desulfurization (FGD) components
- Chemical Processing: equipment handling both oxidizing and reducing acids, super-phosphoric acid production
- Marine Service: steam line bellows, Navy ship exhaust systems, submarine auxiliary propulsion systems
- Nuclear Industry: reactor core and control rod components, waste reprocessing equipment
- Offshore Oil and Gas Production: waste flare gas stacks, piping systems, riser sheathing, sour gas piping and tubing
- Petroleum Refining: waste flare gas stacks
- Waste Treatment: waste incineration components
Standards
ASTM: B 443 | ASME: SB 443 | AMS: 5599
Chemical Composition
Weight % (all values are maximum unless a range is indicated)
| Element | Content | Element | Content |
|---|---|---|---|
| Nickel | 58.0 min. | Silicon | 0.50 |
| Chromium | 20.0 min.-23.0 max. | Phosphorus | 0.015 |
| Molybdenum | 8.0 min.-10.0 max. | Sulfur | 0.015 |
| Iron | 5.0 | Aluminum | 0.40 |
| Niobium (plus Tantalum) | 3.15 min.-4.15 max. | Titanium | 0.40 |
| Carbon | 0.10 | Cobalt (if determined) | 1.0 |
| Manganese | 0.50 |
Physical Properties
| Property | Imperial Units | Metric Units |
|---|---|---|
| Density | 0.305 lbs/in³ | 8.44 g/cm³ |
| Specific Heat | 0.102 BTU/lb-°F (32-212°F) | 427 J/kg-°K (0-100°C) |
| Modulus of Elasticity | 30.1 x 10⁶ psi | 207.5 GPa |
| Thermal Conductivity | 75 BTU/hr/ft²/ft/°F | 10.8 W/m-°K |
| Melting Range | 2350 - 2460°F | 1290 - 1350°C |
| Electrical Resistivity | 50.8 Microhm-in at 70°C | 128.9 Microhm-cm at 210°C |
Thermal Expansion
| Temperature | Mean Coefficient |
|---|---|
| 200°F (93°C) | 7.1 x 10⁻⁶ in/in/°F | 12.8 x 10⁻⁶ cm/cm°C |
| 400°F (204°C) | 7.3 x 10⁻⁶ in/in/°F | 13.1 x 10⁻⁶ cm/cm°C |
| 600°F (316°C) | 7.4 x 10⁻⁶ in/in/°F | 13.3 x 10⁻⁶ cm/cm°C |
| 800°F (427°C) | 7.6 x 10⁻⁶ in/in/°F | 13.7 x 10⁻⁶ cm/cm°C |
| 1000°F (538°C) | 7.8 x 10⁻⁶ in/in/°F | 14.0 x 10⁻⁶ cm/cm°C |
| 1200°F (649°C) | 8.2 x 10⁻⁶ in/in/°F | 14.8 x 10⁻⁶ cm/cm°C |
| 1400°F (760°C) | 8.5 x 10⁻⁶ in/in/°F | 15.3 x 10⁻⁶ cm/cm°C |
| 1600°F (871°C) | 8.8 x 10⁻⁶ in/in/°F | 15.8 x 10⁻⁶ cm/cm°C |
| 1700°F (927°C) | 9.0 x 10⁻⁶ in/in/°F | 16.2 x 10⁻⁶ cm/cm°C |
Mechanical Properties
Typical Values at 68°F (20°C)
| Yield Strength (0.2% Offset) | Ultimate Tensile Strength | Elongation in 2 in. | Hardness |
|---|---|---|---|
| 65,000 psi (448 MPa) | 125,000 psi (862 MPa) | 50% | 200 Brinell (max) |
Corrosion Resistance
Alloy 625's highly alloyed composition provides exceptional corrosion resistance in severe environments. The alloy is virtually immune to attack in mild conditions including atmosphere, fresh and sea water, neutral salts, and alkaline solutions. Nickel and chromium provide resistance to oxidizing solutions, while nickel and molybdenum supply resistance in non-oxidizing environments.
Pitting Resistance Equivalency Numbers (PREN)
| Alloy | Ni | Cr | Mo | W | Nb | N | PREN |
|---|---|---|---|---|---|---|---|
| 316 Stainless Steel | 12 | 17 | 2.2 | - | - | - | 20.4 |
| 317 Stainless Steel | 13 | 18 | 3.8 | - | - | - | 23.7 |
| Alloy 825 | 42 | 21.5 | 3 | - | - | - | 26.0 |
| Alloy 625 | 62 | 22 | 9 | - | 3.5 | - | 40.8 |
| Alloy C-276 | 58 | 16 | 16 | 3.5 | - | - | 45.2 |
Fabrication Data
Hot Forming
Hot-working temperature range: 1650 - 2150°F (900 - 1177°C). Heavy working should occur near 2150°F (1177°C), with lighter working down to 1700°F (927°C). Use uniform reductions to prevent duplex grain structure.
Cold Forming
Alloy 625 can be cold-formed using standard shop practices in the annealed condition. Work hardening rates are higher than austenitic stainless steels.
Welding
Readily welded by GTAW (TIG), PLASMA, GMAW (MIG/MAG), SAW and SMAW (MMA). No post weld heat treatment required. Brushing with stainless steel wire brush removes heat tint.
Machining
Machine in annealed condition using low cutting speeds with continuous tool engagement. Adequate cut depth prevents contact with work-hardened zones.
Packaging
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Company
TSING SHAN STEEL INDUSTRIAL LIMITED
Location
NO.288,Youyi Road Xi Shan Dristrict , Wuxi, Jiangsu, China
Contact Person
Gao Ben