Alloy 825 Plates


Choudhary Metal is a reliable stockist and supplier of Alloy 825 Plates, also known as Nickel Alloy 825 Plates. We supply these plates in thicknesses ranging from .1875" (4.8mm) to 2.00" (50.8mm), suitable for various corrosion-resistant industrial applications.

Alloy 825 is a high-performance nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium, providing excellent resistance to corrosion, oxidation, and acidic environments. Due to these properties, it performs reliably in harsh and chemically aggressive conditions.

Our Alloy 825 Plates are widely used in industries such as air pollution control, chemical and petrochemical processing, food processing, nuclear power, offshore oil and gas production, ore processing, petroleum refining, metal pickling, and waste disposal systems.

At Choudhary Metal, we ensure that our Alloy 825 Nickel Alloy Plates are manufactured and supplied in accordance with international quality standards, offering excellent durability, precision dimensions, and reliable performance for demanding industrial applications.

Available thicknesses for Alloy 825

3/16" 1/4" 3/8" 1/2" 5/8" 3/4"
4.8mm 6.3mm 9.5mm 12.7mm 15.9mm 19mm
1" 1 1/4" 1 1/2" 1 3/4" 2"
25.4mm 31.8mm 38.1mm 44.5mm 50.8mm

Standards

ASTM..................B 424
ASME..................SB 424

Chemical Analysis

Typical Values (Weight %)

Applications

• Air Pollution Control
o Scrubbers
• Chemical Processing Equipment
o Acids
o Alkalis
• Food Process Equipment
• Nuclear
o Fuel Reprocessing
o Fuel Element Dissolvers
o Waste Handling
• Offshore Oil and Gas Production
o Seawater Heat Exchangers
o Piping Systems
o Sour Gas Components
• Ore Processing
o Copper Refining Equipment
• Petroleum Refining
o Air-cooled Heat Exchangers
• Steel Pickling Equipment
o Heating Coils
o Tanks
o Crates
o Baskets

• Waste Disposal
o Injection Well Piping Systems
Nickel 38.0 min.–46.0 max. Iron 22.0 min.
Chromium 19.5 min.–23.5 max. Molybdenum 2.5 min.–3.5 max.
Molybdenum 8.0 min.-10.0 max. Copper 1.5 min.–3.0 max.
Titanium 0.6 min.–1.2 max. Carbon 0.05 max.
Niobium (plus Tantalum) 3.15 min.-4.15 max. Titanium 0.40
Carbon 0.10 Manganese 1.00 max.
Sulfur 0.03 max. Silicon 0.5 max.
Aluminium 0.2 max.

Mechanical Properties

Typical Room Temperature Mechanical Properties, Mill Annealed
Yield Strength
0.2% Offset
Ultimate Tensile
Strength
Elongation
in 2 in.
Hardness
psi (min.) (MPa) psi (min.) (MPa) % (min.) Rockwell B
49,000 338 96,000 662 45 135-165
Temperature, °F 70 400 600 800 1000 1200 1400 1600
Ultimate Tensile Strength, ksi 144 134 132 132 130 119 78 40
0.2% Yield Strength, ksi 84 66 63 61 61 60 59 39
Elongation, % 44 45 42.5 45 48 34 59 117

Typical Rupture Strength Bar, Stress to Rupture at Indicated Time

Temperature, °F 1200 1300 1400
100 Hours, ksi 59 34 18
1,000 Hours, ksi 43 23 12

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