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ASTM A334 GR.6 Hastelloy C-276 Tubes For Chemical Processing

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ASTM A334 GR.6 Hastelloy C-276 Tubes For Chemical Processing

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Brand Name :YUHONG
Model Number :ASTM B334 GR.6
Certification :ABS, GL, DNV, NK, PED, AD2000, ISO 9001
Place of Origin :CHINA
MOQ :300KG
Price :Negotiable
Payment Terms :T/T,L/C
Supply Ability :1000 tons per month
Delivery Time :Depends on quantity
Packaging Details :Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case
Sizing Options :OD: 6-120 mm | Wall Thickness: 1-10 mm | Custom Cut-to-Length
Industry Applications :Chemical Processing, FGD Systems, Offshore Oil & Gas, Pharmaceutical
Surface Finish :Annealed & Pickled, Smooth Surface (Ra ≤1.6 μm)
High-Temperature Stability :Service Temp up to 400°C (752°F) in Oxidizing Atmospheres
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ASTM A334 GR.6 Tubes – High-Performance Corrosion Resistance


1.Product Overview


ASTM A334 GR.6 (UNS N10276) tubes are made from Hastelloy C-276, a nickel-chromium-molybdenum alloy engineered for exceptional resistance to harsh environments, including oxidizing and reducing acids, chlorides, and seawater. Ideal for chemical processing, pollution control, and offshore applications.


2. Chemical Composition (ASTM B334 GR.6)


Element Composition (% Weight)
Nickel (Ni) Balance (≥52%)
Chromium (Cr) 14.5–16.5
Molybdenum (Mo) 15.0–17.0
Iron (Fe) 4.0–7.0
Tungsten (W) 3.0–4.5
Cobalt (Co) ≤2.5
Manganese (Mn) ≤1.0
Silicon (Si) ≤0.08
Carbon (C) ≤0.02
Sulfur (S) ≤0.01


3. Equivalent Grades


Property Value (Room Temperature)
Tensile Strength ≥690 MPa (100 ksi)
Yield Strength (0.2% Offset) ≥283 MPa (41 ksi)
Elongation ≥40%
Hardness (Rockwell B) ≤100 HRB


4. Key Advantages

  • Superior Corrosion Resistance: Resists pitting, crevice corrosion, and stress corrosion cracking (SCC) in chloride-rich environments.
  • High-Temperature Stability: Maintains strength up to 400°C (752°F).
  • Weldability: Compatible with GTAW, GMAW, and SMAW processes without post-weld heat treatment.
  • Versatility: Suitable for both oxidizing (e.g., HNO₃) and reducing (e.g., HCl) media.

5. Applications of ASTM A334 GR.6 Tubes

  • Chemical Processing: Reactors, heat exchangers, and piping for sulfuric, hydrochloric, and acetic acid.
  • Pollution Control: Flue gas desulfurization (FGD) systems and scrubbers.
  • Oil & Gas: Offshore platforms, seawater cooling systems, and sour gas pipelines.
  • Pharmaceutical: Equipment handling aggressive solvents.

ASTM A334 GR.6 Hastelloy C-276 Tubes For Chemical Processing

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