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 B444 Inconel 625 Seamless Tube
ASTM B444 Inconel 625 (UNS N06625) seamless U-bending tube, size 25.4×2.11 mm. Pickled surface, 100% HT/ET/UT, exported to South Africa for heat exchangers and condensers.
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ASTM B729 Alloy 20 (UNS N08020)
ASTM B729 Alloy 20 (UNS N08020) seamless pipe, size 101.6×16.15×2616.2 mm. Heavy wall thickness, bright annealed finish. Excellent sulfuric acid resistance, chloride SCC protection, and high-pressure service.
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ASME SA182 F304 Forged Flange LWNRF
ASME SA182 F304 forged flange LWNRF, 2″ size, 310 mm length, class 150#, ASME B16.5. Designed for heat exchanger factories, boilers, and pressure systems.
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ASME SB111 C70600 (O61) Seamless Tube
ASME SB111 C70600 (O61) seamless tube, size 16×1.0×8600 mm, 100% hydrostatic tested. CuNi 90/10 alloy with excellent seawater corrosion resistance for desalination, marine, and offshore equipment.
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
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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Heat Exchanger Tube Types Explained –
Introduction In the world of thermal systems, heat exchanger tubes are essential to transferring energy efficiently and reliably. From chemical processing to HVAC systems, selecting the correct tube type can directly affect performance, cost, and lifespan. At DLSS, we supply a wide range of custom-formed stainless steel tubes for heat exchangers. This article breaks down […]
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Top 5 Questions Buyers Ask About
Introduction Duplex stainless steel tubes are widely used in offshore platforms, chemical processing, desalination plants, and heat exchanger systems, thanks to their excellent combination of mechanical strength and corrosion resistance. However, many buyers—especially those transitioning from austenitic stainless—have specific concerns before placing an order. Here, we answer the top 5 questions DLSS regularly receives from […]
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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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