Flange
DLSS Save Your Time & Cost
What Makes Our flanges Stand Out for you?
Our stainless steel flanges perfectly match our piping products, ensuring a one-stop solution.
Self-producing flanges reduces procurement costs, improves supply chain efficiency, and enhances quality control.
Standardized flanges streamline installation, minimize welding, and speed up construction.
Certified by ISO 9001, PED, and AD2000, ensuring compliance with global market standards.
Product Cases
ASTM B151 C70600 Forged Fitting NPT
High-quality ASTM B151 C70600 forged fittings, NPT threaded, size 2″×1-1/4″, CL3000, manufactured to ASME B16.11. CuNi 90/10 alloy offers excellent seawater corrosion resistance, ideal for marine piping, heat exchangers, and petrochemical systems.
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ASTM A403 WP316L Seamless 90° Elbow
ASTM A403 WP316L seamless 90° elbow, SR, 2″ SCH80S, manufactured to ASME B16.9. Superior corrosion resistance to seawater and acids. Comparison of WP304 vs WP316L included.
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ASTM A312 TP321 Seamless Pipe 114.3×3.20×9200MM
ASTM A312 TP321 seamless pipe, 114.3×3.20×9200MM, 100% HT + 100% ET. Titanium-stabilized stainless steel pipe for heat exchangers, boilers, and petrochemical industries.
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ASTM A815 WPS32205 Seamless 180° Bend
ASTM A815 WPS32205 seamless 180° bend, DN50 SCH10S, CD=143 mm, manufactured to ASME B16.9. Duplex stainless steel with excellent corrosion resistance, ideal for marine, offshore, and chemical plants.
Read MoreDifferentiated Services: Precisely Meeting Your Business Needs
for Stockists
for End Users
for Traders
Fast Delivery
Efficient production and on-time delivery for your orders
Multiple Product Options
A wide range of seamless tubes to meet various project needs
Small Batch Logo Customization
Custom logos for small batch orders, enhancing your brand identity
Regional Pricing & Protection
Exclusive regional rights and strategic pricing to strengthen your market position
Cost-Effective Products
High-quality products at competitive prices to boost your margins
Flexible MOQ
Adaptable minimum order quantities to fit your business requirements
One-Stop Marketing Solutions
Boost your online image with a complete suite of product marketing visuals and videos
Fastest 7-Day Production Process
Delivery can be made within a minimum of 7 days based on your order size
Continuously upgraded packaging
We offer continuously upgraded packaging to ensure maximum protection and efficiency.
DLSS’s Core Principle: Never Leaving Problems For Clients
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Company News
Finned Tube Cleaning and Maintenance Best
Finned tube cleaning and maintenance are critical to ensuring optimal heat transfer performance and extending the service life of heat exchangers. Without proper care, fouling, corrosion, and fin damage can reduce efficiency and increase operating costs. For background on preventing fouling, read our article How to Prevent Corrosion and Fouling in Finned Tubes. If you […]
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Reliable Stainless Steel Tubes for the
The shipbuilding industry continues to grow, with China, South Korea, and Japan accounting for nearly 90% of global ship output in 2023. As vessels are exposed to seawater corrosion, high pressure, and strict IMO environmental standards, the demand for corrosion-resistant stainless steel tubes and copper-nickel alloy pipes has never been higher. At DLSS, we specialize […]
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Grain Size Requirements for Stainless Steel
For stainless steel heat exchanger tubes, grain size is not always the first item buyers mention in an RFQ. Most projects start with grade, outside diameter, wall thickness, length, heat treatment, surface finish, and testing requirements. However, in high-specification heat exchanger projects, grain size can become an important quality factor. It may affect corrosion resistance, […]
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ASTM B163 Incoloy 825 (UNS N08825)
Product Details Chemical Composition of Incoloy 825 (UNS N08825) Element Composition (%) Nickel (Ni) 38.0 – 46.0 Chromium (Cr) 19.5 – 23.5 Iron (Fe) Balance Molybdenum (Mo) 2.5 – 3.5 Copper (Cu) 1.5 – 3.0 Titanium (Ti) 0.6 – 1.2 Carbon (C) ≤ 0.05 Incoloy 825 is a nickel-iron-chromium alloy with added molybdenum, copper, and titanium for enhanced corrosion […]
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