Duplex Stainless Steel Tube China Supplier
SAF 2507 | Chloride Resistance Champion
Superior stress corrosion cracking resistance in seawater cooling systems. DNV-GL approved for subsea applications, with 35% higher thermal conductivity than standard duplex grades. Guangxin PipeTech, a trusted duplex stainless steel tube supplier in China, supplies duplex 2205 tube with superior corrosion resistance for oil & gas applications. Buy duplex stainless steel tube at competitive prices from us.
Dupl... moreDuplex Stainless Steel Tube China Supplier
SAF 2507 | Chloride Resistance Champion
Superior stress corrosion cracking resistance in seawater cooling systems. DNV-GL approved for subsea applications, with 35% higher thermal conductivity than standard duplex grades. Guangxin PipeTech, a trusted duplex stainless steel tube supplier in China, supplies duplex 2205 tube with superior corrosion resistance for oil & gas applications. Buy duplex stainless steel tube at competitive prices from us.
Duplex Stainless Steel Seamless Tube Specification
Technical Specifications
PREN Formula %Cr+3.3%Mo+16%N≥43
Critical Pitting Temp 85°C in FeCl₃
Hardness 290 HB max
Thermal Conductivity 19 W/m·K @100°C
Package VCI paper wrapped
Guangxin PipeTech’s duplex stainless steel tube, including duplex 2205 tube, excels in cryogenic LNG systems (-165°C), offering PREN≥35, NORSOK-certified. Buy duplex stainless steel tube for offshore projects.
Features of Duplex Stainless Steel Seamless Tube
Super Duplex S32750 Tubes
Hyper-Duplex Chemistry:
UNS S32750 requires PREN ≥43 (%Cr + 3.3x%Mo + 16x%N). Controlled manganese <1.2% prevents Z-phase formation. Nickel maintained at 6-8% for optimal phase balance.
Mechanical Robustness:
Proof Strength: >550 MPa @20°C
H₂S Tolerance: NACE TM0177 Method A at 25 psi
CTE: 12.5 µm/m°C (20-300°C)
Critical Pitting Temp: 85°C per ASTM G48 Method D
Marine-Grade Production:
Forged billets undergo solution annealing at 1080°C with rapid water quenching. ASTM E562 phase balance verification. Hydrogen bake-out at 200°C prevents HIC (hydrogen-induced cracking).
Last posted by DennisChalko on May 10 2025 at 02:09 AM
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