Hebei Youhongcheng Trading Co., Ltd.

High Quality Alloy Steel Pipes & Fittings Manufacturer

PRODUCTS
Home » Products » Flange Forgings » Nickel-based alloy flange

Product Categories

Latest News

Product Description

Nickel-based alloy flanges are engineered for extreme environments where standard stainless steel fails. These flanges leverage the superior properties of nickel-chromium (Ni-Cr) and nickel-copper (Ni-Cu) alloys to withstand corrosive chemicals, ultra-high temperatures, and high-pressure stress. Common applications include oil & gas sour service, chemical processing, and nuclear power plants.


Key Alloy Grades & Properties

Alloy Key Composition Temperature Range Primary Advantages
Inconel 625 Ni (58%) + Cr (20%) + Mo (8%) -200°C to 980°C Oxidation resistance, seawater corrosion
Hastelloy C276 Ni (57%) + Mo (15%) + Cr (16%) -196°C to 400°C Acid/solvent resistance (HCl, H₂SO₄)
Monel 400 Ni (63%) + Cu (30%) -150°C to 480°C Hydrofluoric acid (HF) resistance
Incoloy 825 Ni (38%) + Fe (30%) + Cr (21%) -100°C to 540°C Sulfuric/phosphoric acid resistance

Why Nickel Alloys Outperform Stainless Steel?

✔ Chloride Stress Corrosion Cracking (SCC) Resistance – Critical for offshore/marine applications.
✔ Creep Strength – Maintains structural integrity under prolonged heat (>600°C).
✔ Sour Gas Resistance – Withstands H₂S/CO₂ in oil & gas pipelines (NACE MR0175 compliant).


Manufacturing Processes

  1. Forging – Hot-forged for grain structure uniformity (ASTM B564 standard).

  2. CNC Machining – Precision-turned bolt holes and sealing faces (Ra < 1.6 μm).

  3. Welding Compatibility – Requires specialized techniques (TIG/GTAW with ERNiCrMo-3 filler).

Category
Home
Product
Whatsapp
Email

Get in touch

Submit your project requirements now and our material specialists will respond within 24 hours with tailored solutions.