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 A358 CL1 TP321/TP321H Welded Pipe
ASTM A358 CL1 TP321/TP321H stainless steel welded pipe, 355.6×6.35×5970MM, pickled surface, 100% RT. Ideal for boilers, heat exchangers, petrochemical and refinery piping systems.
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ASTM B165 Monel 400 (UNS N04400)
ASTM B165 Monel 400 (UNS N04400) seamless pipe, size 273×9.27×5200 mm. Bright surface, 100% Hydrostatic, Eddy Current, and Ultrasonic tested. Ideal for heat exchangers, marine, oil & gas, and chemical applications.
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ASTM B151 C70600 Weld Neck Flange
ASTM B151 C70600 Weld Neck Flange (WNRF), 4″ SCH80, 150#, ASME B16.5. CuNi 90/10 alloy with excellent seawater corrosion resistance, ideal for marine, desalination, and offshore piping systems.
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ASTM B111 C70600 (O61) Seamless Tube
ASTM B111 C70600 (O61) seamless tube, size 12.7×1.0×2400 mm. CuNi 90/10 alloy, 100% Eddy Current Tested, and third-party certified. Ideal for heat exchangers, condensers, desalination, and marine cooling systems.
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
DLSS Partners
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If you have connections with professionals in the heat exchanger, boiler, or industrial manufacturing industries.
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Company News
Asia-Pacific Leads the Global Stainless Steel
Asia-Pacific (APAC) is not just the largest stainless steel seamless tube market—it’s the fastest-growing. Fueled by industrialization, infrastructure investment, and regional manufacturing dominance, APAC accounts for over 40% of global market share and is projected to grow steadily at 7.3%+ CAGR through 2030. For manufacturers, EPC contractors, and material buyers, understanding this region’s growth dynamics […]
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Stainless Steel Seamless Pipes for Mining
Introduction South America is home to some of the world’s most significant mining and metallurgical hubs, particularly in Chile, Peru, and Brazil. With growing global demand for copper, lithium, iron ore, and rare earth elements, mining facilities are expanding—driving up the need for durable, corrosion-resistant piping systems. DLSS supports this demand with high-performance stainless steel […]
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Latin America’s Energy Boom: Opportunities and
In recent years, Latin America has emerged as a hotbed of industrial investment. From deepwater oil fields in Brazil to lithium mines in Argentina and sugar mills in Colombia, the region is investing heavily in infrastructure and energy. For suppliers of stainless steel tubes, heat exchanger coils, and industrial piping systems, this presents both a […]
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How to Ensure NACE MR0175 Compliance
Introduction Sour gas environments—containing hydrogen sulfide (H₂S)—pose one of the greatest challenges for stainless steel tubes in the oil and gas industry. The presence of H₂S increases the risk of sulfide stress cracking (SSC) and hydrogen-induced cracking (HIC), which can lead to catastrophic failures if materials are not selected and tested properly. To mitigate these […]
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