UNS N06985 Steel Sheet | UNS N06985 Strip

 

UNS N06985 Alloy Steel Plate Supplier | Specifications, Equivalent Materials, and Price

 

UNS N06985 alloy steel plate, also known as Hastelloy G-3, is supplied by Gangsteel, a leading stainless steel supplier in China. Renowned for its exceptional UNS N06985 corrosion resistance in phosphoric and sulfuric acid environments, this nickel-based superalloy is ideal for flue gas scrubbers, chemical processing, and acid production equipment.

Gangsteel offers UNS N06985 plate, sheet, strip, bar, and custom components, meeting ASTM B582 and ASME SB-582 standards for plate/sheet/strip, and ASTM B581 for rod. This page provides detailed insights into the UNS N06985 chemical composition, mechanical properties, equivalent materials, specifications, applications, and competitive UNS N06985 price per kg. Explore our nickel alloy steel grades for related alloys like UNS N06625, UNS N08825, and UNS N08020.

 

1. What is UNS N06985?

UNS N06985, or Hastelloy G-3, is a nickel-chromium-iron-molybdenum-copper alloy with approximately 44% nickel, 22% chromium, 7% molybdenum, and 2% copper, designed for superior resistance to phosphoric and sulfuric acids, as well as intergranular corrosion in welded conditions. Its low carbon content minimizes sensitization, making UNS N06985 material ideal for flue gas scrubbers, acid production, and chemical processing equipment. Compared to UNS N08825, UNS N06985 offers enhanced weldability and resistance to reducing acids.

Gangsteel’s UNS N06985 alloy steel plate is tailored for aggressive chemical environments, providing a robust alternative to nickel alloy steel grades like UNS N06030 and UNS N06200.

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2. UNS N06985 Chemical Composition

The UNS N06985 chemical composition, compliant with ASTM B582 for plate/sheet/strip, is optimized for corrosion resistance in reducing acids, with low carbon for weldability.

Element	Percentage (%)
Nickel (Ni)	Balance (~44%)
Chromium (Cr)	21.5 – 23.5
Molybdenum (Mo)	6.0 – 8.0
Copper (Cu)	1.5 – 2.5
Iron (Fe)	18.0 – 21.0
Cobalt (Co)	≤ 5.0
Tungsten (W)	≤ 1.5
Carbon (C)	≤ 0.015
Manganese (Mn)	≤ 1.0
Silicon (Si)	≤ 1.0
Phosphorus (P)	≤ 0.04
Sulfur (S)	≤ 0.03

Note: The molybdenum and copper enhance UNS N06985 corrosion resistance in phosphoric and sulfuric acids, while low carbon ensures weldability, outperforming UNS N08020 in reducing acid environments.

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3. UNS N06985 Mechanical Properties

The UNS N06985 mechanical properties, tested per ASTM B582, offer a balance of strength and ductility, making UNS N06985 alloy steel plate suitable for chemical processing applications.

Property	Value at 20°C	Value at 204°C (400°F)
Tensile Strength (MPa)	≥ 620 (90 ksi)	≥ 580 (84 ksi)
Yield Strength (MPa)	≥ 240 (35 ksi)	≥ 220 (32 ksi)
Elongation (%)	≥ 40	≥ 45
Hardness (HB)	140 – 220	-
Density	8.22 g/cm³ (0.297 lb/in³)	-

Note: Solution annealing at 2100°F (1150°C) with rapid air cooling or water quenching optimizes Hastelloy G-3 mechanical properties. Contact Gangsteel for a detailed UNS N06985 technical data sheet.

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4. UNS N06985 Allowable Stress

The allowable stress values for UNS N06985, per ASME BPVC Section II, Part D, ensure safe design in chemical processing applications.

Temperature (°C)	Allowable Stress (MPa)
100	165
200	150
300	135
400	120
500	110

Note: These values ensure UNS N06985 material performs reliably in flue gas scrubbers and acid processing equipment under elevated temperatures.

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5. UNS N06985 Equivalent Materials

UNS N06985aligns with international standards for global compatibility.

Standard	Grade
UNS	N06985
W.Nr.	2.4619
ASTM	B582, B581
ASME	SB-582, SB-581

Note: UNS N06985 equivalent grades comply with ASTM B582 for plate/sheet/strip and ASTM B581 for rod, offering interchangeability with UNS N06030 in certain phosphoric acid applications.

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6. UNS N06985 vs UNS N08825, UNS N06625, and SS316

Comparing UNS N06985 to UNS N08825, UNS N06625, and SS316 aids in material selection:

Property	UNS N06985 (Hastelloy G-3)	UNS N08825 (Alloy 825)	UNS N06625 (Alloy 625)	SS316/316L
UNS Number	N06985	N08825	N06625	S31600/S31603
Nickel Content	~44%	38.0-46.0%	~58%	10.0-14.0%
Chromium Content	21.5-23.5%	19.5-23.5%	20.0-23.0%	16.0-18.0%
Molybdenum Content	6.0-8.0%	2.5-3.5%	8.0-10.0%	2.0-3.0%
Additional Elements	Cu (1.5-2.5%), Co	Cu (1.5-3.0%), Ti	Nb (3.15-4.15%), Ti	-
Corrosion Resistance	Excellent in phosphoric/sulfuric acids	Excellent in sulfuric/phosphoric acids	Excellent in oxidizing/reducing acids	Good in general corrosion
Strength	Moderate	Moderate	High	Moderate
Temp Range	Up to 540°C (1000°F)	Up to 540°C (1000°F)	Up to 1000°C (1832°F)	Up to 870°C (1600°F)
Cost (USD/kg)	35-50	30-45	40-60	5-15
Applications	Flue gas scrubbers, chemical processing	Oil/gas, chemical processing	Aerospace, nuclear	Food, pharma

• UNS N06985 vs UNS N08825: UNS N06985 offers superior weldability and resistance to phosphoric acid, while UNS N08825 is better for oil/gas applications.
• UNS N06985 vs UNS N06625: UNS N06625 excels in high-temperature and oxidizing environments, while UNS N06985 is optimized for reducing acids.
• UNS N06985 vs SS316: UNS N06985 outperforms SS316 in aggressive acid environments but is more expensive.

Conclusion: Choose UNS N06985 alloy steel plate for phosphoric and sulfuric acid applications, UNS N08825 for oil/gas, UNS N06625 for high-temperature applications, or SS316 for general corrosion resistance.

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7. UNS N06985 Specifications

Gangsteel offers UNS N06985 alloy steel plate, sheet, strip, bar, and custom components with a wide range of specifications, compliant with ASTM B582 for plate/sheet/strip and ASTM B581 for rod,.

7.1 Plate, Sheet, and Strip

• Thickness: 0.5 mm to 100 mm (plate), 0.1 mm to 6 mm (sheet/strip)
• Width: 1000 mm to 3000 mm
• Length: 2000 mm to 12000 mm (or coiled for sheet/strip)
• Surface Finish: Hot-rolled, cold-rolled, annealed, pickled, 2B, 2D, BA, or customized
• Standards: ASTM B582, ASME SB-582
• Applications: UNS N06985 plate for flue gas scrubbers, Hastelloy G-3 strip for chemical processing

7.2 Bar

• Diameter: 6 mm to 500 mm
• Length: Up to 12000 mm
• Finish: Hot-rolled, cold-drawn, centerless ground
• Standards: ASTM B581, ASME SB-581
• Applications: UNS N06985 bar for fittings and fasteners

7.3 Custom Components

• Types: Flanges, fittings, CNC-machined parts
• Tolerances: ±0.05 mm for precision components
• Applications: Tailored solutions for chemical and acid production industries

Note: Custom sizes and heat treatments (e.g., solution annealing at 2100°F/1150°C) are available. Contact Gangsteel for bespoke UNS N06985 material specifications.

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8. UNS N06985 Applications

UNS N06985is widely used in industries requiring robust corrosion resistance. Key UNS N06985 applications include:

• Flue Gas Scrubbers: UNS N06985 alloy steel plate for handling acidic gases.
• Chemical Processing: Hastelloy G-3 plate for reactors handling phosphoric and sulfuric acids.
• Acid Production: UNS N06985 sheet for equipment in sulfuric and phosphoric acid plants.
• Oil and Gas: UNS N06985 bar for fittings in corrosive environments.
• Pulp and Paper: Components for bleaching systems.

Note: Compared to UNS N06030, UNS N06985 offers better weldability for phosphoric acid applications.

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9. UNS N06985 Price per KG

The UNS N06985 price per kg ranges from USD 35-50 per kg (FOB), influenced by:

• Alloy Content: High nickel (~44%) and molybdenum (6.0-8.0%) increase costs compared to UNS N08825.
• Market Demand: High demand in chemical processing drives Hastelloy G-3 price.
• Product Form: UNS N06985 alloy steel plate may cost more than strip due to processing.
• Global Supply Chain: Freight and availability affect UNS N06985 cost.

For precise UNS N06985 price per kg quotes or bulk discounts, contact Gangsteel.

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10. Related Alloy Steel Grades

Gangsteel offers a diverse range of nickel alloy steel grades alongside UNS N06985, suitable for complementary applications:

• UNS N06625: High strength for aerospace and nuclear applications.
• UNS N08825: Corrosion resistance for oil and gas.
• UNS N08020: Cost-effective for sulfuric acid applications.
• UNS N10675: Superior resistance to hydrochloric acid.
• UNS N06030: Superior resistance to phosphoric acid.
• UNS N06200: Superior resistance to sulfuric acid.
• UNS N10276: Broad resistance to reducing and oxidizing acids.
• UNS N06022: Superior resistance to oxidizing acids.
• UNS N06690: Corrosion resistance for nuclear applications.
• UNS N07718: High strength for aerospace.
• UNS N07750: Creep resistance for springs.
• UNS N06002: High-temperature strength for turbines.
• UNS N04400: Resistance to seawater and acids.
• UNS N05500: High strength for marine applications.
• UNS N06075: High-temperature corrosion resistance.
• UNS N07080: High strength for aerospace.
• UNS N07263: High-temperature strength for turbines.

Note: These alloys complement UNS N06985 alloy steel plate in chemical, oil/gas, and high-temperature applications. Contact Gangsteel for a full catalog.

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11. Why Choose Gangsteel?

• Quality Assurance: All UNS N06985 alloy steel plate products meet ASTM B582 and ASME SB-582 standards, with EN 10204 3.1/3.2 certificates.
• Fast Delivery: Standard orders shipped in 7-15 days, with expedited options for urgent projects.
• Customization: Precision cutting (CNC, laser, waterjet), welding, and heat treatments tailored to your needs.
• Global Supply: Serving clients in Saudi Arabia, UAE, India, Europe, and beyond.
• Extensive Inventory: Wide range of nickel alloy steel grades, including UNS N06625 and UNS N08825.

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12. Conclusion

UNS N06985 alloy steel platefrom Gangsteel delivers exceptional corrosion resistance for phosphoric and sulfuric acid environments, ideal for flue gas scrubbers and chemical processing. With high nickel and molybdenum, UNS N06985 material offers superior weldability compared to UNS N08825, supported by versatile specifications (0.5-100 mm thickness, up to 3000 mm width) and equivalent grades (W.Nr. 2.4619). As a trusted stainless steel supplier in China, Gangsteel provides high-quality UNS N06985 plate, sheet, strip, and bar at competitive prices (USD 35-50/kg).

Contact Gangsteeltoday for the latest UNS N06985 price per kg or to request a detailed Hastelloy G-3 technical data sheet. Explore our nickel alloy steel grades for customized solutions to meet your project demands!